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Objective Questions

Latest Exam Question (Objective Questions), MCQ in English

Subjects : Computer, Mathematics

Question Bank Odisha Sub-ordinate Staff Selection Commission Bhubaneswar (OSSSC) Junior Clerk Exam PAPER - II (English)

Computer

Question 1Single Answer

Which Windows interface element typically appears to display information, a warning, an error message, or a request for confirmation?

A
Window
B
Pop-up menu
C
Message box
D
Taskbar

Question 2Single Answer

What is active desktop ?

A
a term that is synonymous with viewing your desktop as web page
B
a feature to customize your desktop to display informating you can update from the internet
C
both a and b above mentioned
D
A software
E
None of these

Question 3Single Answer

What is meant by an active window?

A
A window that is minimized
B
The window currently receiving user input
C
Any window currently open
D
The window opened first

Question 4Single Answer

What was America Online (AOL) primarily known for during the early popularization of consumer Internet access?

A
An online service providing Internet access and proprietary online content
B
A computer operating system
C
A spreadsheet application
D
A database management system

Question 5Single Answer

An application is

A
word processing, accounting and engineering programs are example of application programs
B
computer program designed to enable users to perform specific job functions
C
Both a and b above mentioned
D
a document
E
None of these

Question 6Single Answer

Which of the following programs enables you to calculate numbers related to rows and columns?

A
Window program
B
Spreadsheet program
C
Graphics program
D
Word program
E
None of these

Question 7Single Answer

The term Briefcase is used for

A
a special folder on the windows desktop used to keep documents up to date when shared between computers
B
a window that us currently open
C
A folder which keeps deleted, files for a while and can be retrieved from it
D
All of the above
E
None of these

Question 8Single Answer

In a graphical user interface, what is a button primarily used for?

A
Executing a command or initiating an action
B
Permanently storing data
C
Displaying the computer's IP address
D
Formatting a disk automatically

Question 9Single Answer

A channel (in windows terminology) is

A
a widely used online service that offers access to the internet
B
a specialized web site designed to work with the windows 98 subscribing feature to automatically download information from the internet and store it on your computer for later viewing
C
an area on the computer memory where text or graphics can be temporarily stored
D
All of the above
E
None of these

Question 10Single Answer

What does a checked checkbox generally indicate in a graphical user interface?

A
The associated option is enabled or selected
B
The application has closed
C
The file has been deleted
D
The computer is offline

Question 11Single Answer

The term classic style implies

A
you can click on an item to select it and double click on an item to open it
B
a folder options setting that tells double click on an item to open it
C
both a and b
D
font style
E
None of these

Question 12Single Answer

The term click implies

A
to quickly push and release the main mouse button when onscreen mouse pointer is positioned over the desired item
B
a button in a dialog box
C
to shut down or exit a dialog box
D
All of the above
E
None of these

Question 13Single Answer

What is the primary function of the Close button marked with an X on a window?

A
Minimize the window
B
Close the associated window or application
C
Maximize the window
D
Move the window

Question 14Single Answer

A command button

A
is a one in a dialog box such as open, close, exit OK or cancel that carries out a command
B
is a symbol that designates the position on the screen where text or codes will be inserted or deleted
C
is a sort on screen from where you can open and manages files and programs
D
is a small button with an X on it
E
None of these

Question 15Single Answer

What is smallest unit of the information?

A
A bit
B
A byte
C
A block
D
A nibble

Question 16Single Answer

A cursor is

A
to make a selection from the document from the document and duplicate it on the clipboard
B
a symbol that designated the position on the screen where text or codes will be inserted or deleted
C
pressing and holding the main mouse button
D
A button in a dialog box
E
None of these

Question 17Single Answer

What is a Database Management System (DBMS)?

A
A structured collection of data only
B
Software used to create, manage, retrieve, and update data in databases
C
A physical device for storing database backups
D
A programming language used only for calculations

Question 18Single Answer

The meaning of cut is

A
to take a selection from the document and move it to the clipboard
B
to cut a document in two unequal parts
C
to cut a document in two equal parts
D
Only b and c are correct

Question 19Single Answer

A setting or action predetermined by the program unless changed by the user is called as

A
pre - determined setting
B
user - setting
C
default
D
setting
E
None of these

Question 20Single Answer

The search back ground and main area of windows where you can open and manage files and programs is

A
wall paper
B
desktop
C
background
D
All of the above
E
None of these

Question 21Single Answer

What is a dialog box in a graphical user interface?

A
An on-screen window used to display information or obtain user input and selections
B
A tool used exclusively for audio and video calls
C
A hardware device used for voice commands
D
A program used exclusively to browse websites

Question 22Single Answer

A letter, memo, proposal, or other that is created using Microsoft word is called as

A
Master
B
slide
C
document
D
worksheet
E
None of these

Question 23Single Answer

The meaning of double click is

A
pushing and releasing the main mouse button twice in rapid succession when the on - tree mouse pointer is positioned over the desired item
B
appearance of an icon
C
to take a selection from the document and move it to the clipboard
D
All of the above
E
None of these

Question 24Single Answer

The term drag and drop means

A
appearance of an icon
B
used for selecting text
C
to move text or an object by positioning the mouse pointer on the item you want to move, pressing and holding the mouse button to drop the object into its new location
D
to take a selection from the document and move it to the clipboard
E
None of these

Question 25Single Answer

What does dragging with a mouse mean?

A
Holding down a mouse button while moving the mouse pointer
B
Closing an application
C
Double-clicking an icon without moving the mouse
D
Restarting the computer

Question 26Single Answer

What is the purpose of a drop-down list in a graphical user interface?

A
To display a list of selectable choices when expanded
B
To permanently delete selected files
C
To close all running applications
D
To display only error messages

Question 27Single Answer

The default name for a desktop icon that opens an explore window displaying information about your system’s disk drives and also special system folders like printers and control panel

A
my computer
B
news groups
C
message box
D
network neighbourhood
E
None of these

Question 28Single Answer

________________ means to enlarge window to its maximum area so that it will full entire desktop

A
maximize
B
zoom
C
enlarge
D
extend
E
None of these

Question 29Single Answer

What is HTML primarily used for?

A
Defining the structure and meaning of content on web pages
B
Managing computer hardware drivers
C
Encrypting all Internet traffic
D
Controlling the computer's BIOS

Question 30Single Answer

What is the process of visually emphasizing selected text or an object on a computer screen commonly called?

A
Shading
B
Hyperlinking
C
Highlighting
D
Compiling

Question 31Single Answer

What is an icon in a graphical user interface?

A
An action performed when a button is clicked
B
A small graphical representation of an application, command, file, folder, or function
C
A type of computer memory
D
A text-only command prompt

Question 32Single Answer

In graphical user interfaces, what does an ellipsis (...) following a menu command commonly indicate?

A
The command will open a dialog box or require additional input
B
The command will immediately shut down the computer
C
The command has already been executed
D
The command cannot be selected

Question 33Single Answer

_____________ is an area of memory assigned to store any e-mail message for the user

A
Outlook express
B
yahoo.com
C
post- box
D
mail box
E
None of these

Question 34Single Answer

Group of letters, numbers, and symbols with a common typerface is called as

A
file
B
font
C
style
D
GUI
E
None of these

Question 35Single Answer

A___ is an electronic device that process data converting into information.

A
processor
B
computer
C
menu
D
mouse
E
None of these

Question 36Single Answer

This is the process of getting access to the computer

A
sign in
B
log in
C
log off
D
enter
E
None of these

Question 37Single Answer

The full step wise process of closing a computer is called

A
shutting
B
closing
C
log off
D
shut down
E
None of these

Question 38Single Answer

What is a clickable connection from one web document or resource to another called?

A
Hyperlink
B
Compiler
C
Cursor
D
Clipboard

Question 39Single Answer

This device is used to connect your computer with a telephone line, so that can access information form other servers and ordinary users too, said device is called

A
modem
B
set top box
C
LAN card
D
UPS
E
None of these

Question 40Single Answer

What is an Internet discussion area where users exchange messages about a particular subject traditionally called?

A
Newsgroup
B
Spreadsheet
C
Search engine
D
Device driver

Question 41Single Answer

Which two functional units are fundamental components of a CPU?

A
Control Unit and Arithmetic Logic Unit
B
Keyboard and mouse
C
Monitor and printer
D
Hard disk and optical drive

Question 42Single Answer

Hardware that are easily attached to computer and can be played instantly are called as

A
multimedia
B
plug and play
C
digital
D
point to point
E
None of these

Question 43Single Answer

There is a central file in windows OS that is used to keep track of information about installed hardware and software and their preferences on the specific computer. This file is

A
system database
B
main menu
C
registry
D
directory
E
None of these

Question 44Single Answer

It is the smallest dot that can be uniquely drawn on a computer screen.This is

A
Boxel
B
Computer dort
C
Cursor
D
Pixel
E
None of these

Question 45Single Answer

In an office document, a picture, chart, shape, or other inserted item is generally treated as what?

A
Object
B
Clipboard
C
Cursor
D
Taskbar

Question 46Single Answer

What is a quick press and release of the secondary mouse button called?

A
Right-click
B
Double-click
C
Drag
D
Scroll

Question 47Single Answer

An operation to retrieve information image as well as text which is stored in clip board and inset it at the destined place is

A
copy
B
insert
C
select
D
paste
E
None of these

Question 48Single Answer

Display bar that list all the open folders and active application is

A
menu bar
B
tool bar
C
task bar
D
window list
E
None of these

Question 49Single Answer

A large space common in most of the windows which is for user’s work with that application is

A
application view
B
work area
C
project view
D
tool bars
E
None of these

Question 50Single Answer

__________- is the list of print jobs waiting to be sent to a particular printer

A
print list
B
job queue
C
print requests
D
print queue
E
None of these

Computer

Question 51Single Answer

A photograph, image or any other visual file which is displayed at the back ground of the windows main icon screen, is called as

A
wall paper
B
screen saver
C
window theme
D
active desktop
E
None of these

Question 52Single Answer

___________--- is a process of sending documents to a storage where they are temporarily stored and remain there until printer them

A
printing
B
queuing
C
waiting queue
D
print spooling
E
None of these

Question 53Single Answer

Which GUI control is used when a user must select exactly one option from a group of mutually exclusive choices?

A
Radio button
B
Check box
C
Scroll bar
D
Text box

Question 54Single Answer

An interactive tool provided with windows OS to assist user in installation of software and also in using different features of applications, it is called as

A
demo
B
wizards
C
help
D
undo
E
None of theses

Question 55Single Answer

In Microsoft Windows, which application is primarily used to browse and manage files and folders?

A
Task Manager
B
File Explorer
C
Control Panel
D
Registry Editor

Question 56Single Answer

The feature to customize your desktop to display information that you can update from the internet is

A
active desktop
B
online desktop
C
e-mail
D
resource sharing
E
None of these

Question 57Single Answer

What is the electronic exchange of messages and attached computer files over a network or the Internet commonly called?

A
E-mail
B
FTP
C
Web browsing
D
Streaming

Question 58Single Answer

What is a computer virus?

A
A malicious program or code capable of replicating by infecting other files or programs
B
A physical hardware component
C
A Windows configuration utility
D
A network transmission medium

Question 59Single Answer

A fourth-generation programming language (4GL) is generally characterized as what?

A
A machine-level language
B
A high-level, often nonprocedural language
C
An assembly language
D
A binary instruction set

Question 60Single Answer

What was Microsoft Write, included with early versions of Microsoft Windows?

A
A basic word processor
B
A database management system
C
A spreadsheet program
D
A programming-language compiler

Question 61Single Answer

Which among them is not an application software

A
MS word
B
MS excel
C
Adobe Acrobat
D
Turbo C compiler
E
None of these

Question 62Single Answer

In the memory architecture of DOS-era x86 PCs, which statement correctly describes extended memory?

A
Memory located above the 1 MB address boundary
B
Memory located only within the first 640 KB
C
Memory contained exclusively in CPU registers
D
Memory reserved exclusively for video display

Question 63Single Answer

Which statement best describes the primary role of an operating system?

A
It manages computer hardware and software resources and provides services for applications
B
It is used only to create documents
C
It is used exclusively for Internet communication
D
It converts every high-level program directly into machine code

Question 64Single Answer

Which is the most important part of an operating system

A
shell
B
kernel
C
device drivers
D
extra services
E
None of these

Question 65Single Answer

Which Windows startup mode loads a limited set of essential drivers and services for troubleshooting?

A
Safe Mode
B
Presentation Mode
C
Design Mode
D
Compilation Mode

Question 66Single Answer

In a modern Windows system, which file system is commonly used as the default for the Windows system drive?

A
NTFS
B
ext4
C
HFS+
D
UFS

Question 67Single Answer

Which Windows component provides a hierarchical database for storing configuration settings for the operating system and installed applications?

A
Windows Registry
B
Task Manager
C
File Explorer
D
Recycle Bin

Question 68Single Answer

Which feature contributed significantly to the widespread usability of Microsoft Windows compared with command-line-only environments?

A
Graphical user interface
B
Absence of multitasking
C
Lack of peripheral support
D
Requirement to enter all commands numerically

Question 69Single Answer

A series of specially designed documents, which are all linked to be viewed on internet is called

A
world Wide Web
B
Web Server
C
Search Engine
D
Both b and c
E
None of these

Question 70Single Answer

What is a predefined document structure containing formatting, styles, and other settings that can be reused to create new documents?

A
Template
B
Compiler
C
Device driver
D
Clipboard

Question 71Single Answer

DTP packages cannot do this

A
graphics/ pictures related utility
B
internet connectivity
C
word processing
D
provide print quality
E
None of these

Question 72Single Answer

What distinguishes a real-time computer system from a general-purpose processing system?

A
It must produce correct responses within specified timing constraints
B
It must always be connected to the Internet
C
It processes data only in batches
D
It cannot interact with external devices

Question 73Single Answer

Where may an application's files be stored in a modern operating system?

A
Only in one directory
B
Only in two subdirectories
C
Only in the root directory
D
In multiple appropriate directories according to the application's installation and configuration

Question 74Single Answer

A native Windows application is primarily designed to execute under which environment?

A
Microsoft Windows
B
DOS only
C
BIOS only
D
Firmware setup only

Question 75Single Answer

Minimize window, what it will do

A
close the window
B
make it an icon and store on task bar
C
close window after saving its contents
D
shut down the computer
E
None of these

Question 76Single Answer

A connection from the current document to another document or to a document on the world wide web

A
HTML
B
Icon
C
Internet
D
Hypertext link
E
None of these

Question 77Single Answer

The term access time means

A
a register or storage location that forms the result of an arithmetic or logic operation
B
the elapsed time between the instant when data are called for from a storage device and the instant when the delivery operation is completed
C
to locate the desired data
D
All of these
E
None of these

Question 78Single Answer

Which statement correctly describes the Ada programming language?

A
It is a high-level programming language whose original development was sponsored by the U.S. Department of Defense
B
It is an abbreviation for Automatic Data Access
C
It is a database file format
D
It is a computer hardware architecture

Question 79Single Answer

A set of well defined steps for solving a problem in finite number of operations

A
Ada
B
ALGOL
C
Algorithm
D
Accumulator
E
None of these

Question 80Single Answer

What does ANSI stand for?

A
American National Standards Institute
B
American Network Systems Institute
C
Automated National Software Interface
D
Association of Network Systems International

Question 81Single Answer

A mathematically oriented high level language frequently used in time sharing

A
ASCII
B
ANSI
C
ADA
D
APL
E
None of these

Question 82Single Answer

Software designed for a specific purpose is called as

A
specific program
B
application program
C
system program
D
assembly program
E
None of these

Question 83Single Answer

A computer science branch that is involved in using computers to solve that appear to require human imagination or intelligence is called as

A
analog
B
ASCII
C
AI
D
Analog
E
None of these

Question 84Single Answer

A standard code used to exchange information among data processing and communication systems

A
ACM
B
ASCII
C
APL
D
ANSI
E
None of these

Question 85Single Answer

Which statement best describes assembly language?

A
A low-level programming language that uses symbolic representations of machine instructions
B
A high-level database query language
C
A markup language for creating web pages
D
A language used exclusively for spreadsheets

Question 86Single Answer

Which processing method groups similar jobs or transactions and processes them together without requiring continuous user interaction?

A
Real-time processing
B
Interactive processing
C
Batch processing
D
Distributed processing

Question 87Single Answer

Which unit represents the number of symbol changes or symbols transmitted per second in a communication channel?

A
Byte
B
Baud
C
Hertz
D
Pixel

Question 88Single Answer

A storage device used to compensate for the differences in rates of flow of data form one device to another is

A
buffer
B
channel
C
call
D
chip
E
None of these

Question 89Single Answer

Which component of the CPU directs and coordinates the execution of instructions?

A
Control Unit
B
Secondary storage
C
Output unit
D
Network interface card

Question 90Single Answer

In data communication, what is a channel?

A
A communication path through which signals travel from a source to a destination
B
A CPU register used for arithmetic
C
A type of programming language
D
A database record

Question 91Single Answer

A thin wafer of silicon on which integrated electronic components are deposited

A
chip
B
CRT
C
bit
D
Bus
E
None of these

Question 92Single Answer

A device that generates the periodic signals to control the timing of all CPU operations

A
COM
B
Collate
C
Chip
D
Clock
E
None of these

Question 93Single Answer

A high level language developed for business data processing applications

A
BASIC
B
PASCAL
C
COBOL
D
FORTRAN
E
None of these

Question 94Single Answer

A computer program that produces a machine language program from a source program that’s usually written in a high level language by a programmer

A
concentrator
B
compiler
C
BASIC
D
interpreter
E
None of these

Question 95Single Answer

A processing complex consisting of two or more inter connected computers

A
computer network
B
control program
C
cybernetics
D
CAI
E
None of these

Question 96Single Answer

The comprehensive software system that builds, maintains and provides access to a database

A
CPU
B
DASD
C
CAI
D
DBMS
E
None of these

Question 97Single Answer

To detect, locate and remove errors in programs and / or malfunctions in equipments is

A
Compile
B
DEBUG
C
Interpret
D
DSS
E
None of these

Question 98Single Answer

Which component is fundamental to a traditional rule-based expert system?

A
Knowledge base and inference mechanism
B
Spreadsheet and printer driver
C
Compiler and linker only
D
Web browser and search engine

Question 99Single Answer

A type of processing in which a device can act on information almost instantly to keep up with the events occurring in the outside world ?

A
Off - line processing
B
Batch processing
C
On - line processing
D
Real time processing
E
None of these

Question 100Single Answer

What is a program written by a programmer in a high-level programming language called before translation into machine or object code?

A
Source program
B
Object program
C
Executable machine program
D
Device driver

Mathematics

Question 101Single Answer

What is the seventh term of the sequence 0,3,8,15,24,………?

A
63
B
48
C
35
D
33

Question 102Single Answer

Solve for x: 2x – y = (3/4)x + 6.

A
(y + 6)/5,
B
4(y + 6)/5,
C
(y + 6),
D
4(y - 6)/5.

Question 103Single Answer

Which is greater than 4 ?

A
5,
B
-5,
C
-1/2,
D
-25.

Question 104Single Answer

Which is the smallest ?

A
-1
B
-1/2
C
0
D
3

Question 105Single Answer

What is log₈₁ 243 equal to ?

A
0.75
B
1.25
C
1.5
D
3

Question 106Single Answer

^{If the three vertices of the parallelogram ABCD are A(1 , a ) , B ( 3, a ) , C ( 2 , b ), then D is equal to}

A
( 3,b )
B
(6,b )
C
( 4 ,b )
D
( 5 , b )

Question 107Single Answer

The value of K for which the lines 2x + 3y + a = 0 and 5x + ky + a = 0 represent family of parallel lines is

A
3
B
4.5
C
7.5
D
15

Question 108Single Answer

What is the equation of the line which passes through ( 4, -5 ) and is prependicular to 3x + 4y + 5 = 0 ?

A
4x – 3y -31 = 0
B
3x – 4y – 41 = 0
C
4x + 3y – 1 = 0
D
3x + 4y + 8 = 0

Question 109Single Answer

Combine terms: 12a + 26b -4b – 16a.

A
4a + 22b
B
-28a + 30b
C
-4a + 22b
D
28a + 30b

Question 110Single Answer

What is |-26| ?

A
-26
B
26
C
0
D
1

Question 111Single Answer

A point P moves such that its distances from ( 1 , 2 ) and ( -2 , 3 ) are equal . Then the locus of P is

A
straight line
B
parabola
C
ellipse
D
hyperbola

Question 112Single Answer

The equation of the locus of a point which is equidistant from the axes is

A
y = 2x
B
x = 2y
C
y = ±x
D
2y + x = 0

Question 113Single Answer

Solve for x: 2x – y = (3/4)x + 6.

A
(y + 6)/5
B
4(y + 6)/5
C
(y + 6)
D
4(y - 6)/5

Question 114Single Answer

Find the value of 3 + 2 • (8 – 3)

A
25
B
13
C
17
D
15

Question 115Single Answer

What is the equation to the straight line passing through ( 5 , -2 ) and ( -4 , 7 ) ?

A
5x – 2y = 4
B
-4x + 7y = 9
C
x + y = 3
D
x – y = -1

Question 116Single Answer

Jones covered a distance of 50 miles on his first trip. On a later trip he traveled 300 miles while going three times as fast. His new time compared with the old time was :

A
three times as much
B
twice as much
C
the same
D
half as much

Question 117Single Answer

What is the value of the determinant 1 bca(b+c)
1 ca b(C+a) ?
1 abc(a+b)

A
0
B
abc
C
ab + bc + ca
D
abc ( a + b + c )

Question 118Single Answer

A school committee consists of 2 teachers and 4 students. The number of different committees that can be formed from 5 teachers and 10 students is

A
10
B
15
C
2100
D
8

Question 119Single Answer

Let n be a positive interger and ( 1 + x )n = a₀ + a₁x + a₂x2 + ….+ a_nxn
What is a₀ + a₁ + a₂ +…+ a_n equal to ?

A
1
B
2n
C
2n-1
D
2n+1

Question 120Single Answer

The mean of a data set is equal to 10 and its standard deviation is equal to 1. If we add 5 to each data value, then the mean and standard deviation become

A
mean = 15 , standard deviation = 6
B
mean = 10 , standard deviation = 6
C
mean = 15 , standard deviation = 1
D
mean = 10 , standard deviation = 1

Question 121Single Answer

A number in binary system is110001. It is equal to which one of the following numbers in decimal system ?

A
45
B
46
C
48
D
49

Question 122Single Answer

The roots of the equation x2 – 8x + 16 = 0

A
are imaginary
B
are distinct and real
C
are equal and real
D
cannot be ascertained

Question 123Single Answer

The exam scores of all 500 students were recorded and it was determined that these scores were normally distributed. If Jane's score is 0.8 standard deviation above the mean, then how many, to the nearest unit, students scored above Jane ?

A
394
B
250
C
400
D
106

Question 124Single Answer

If f(x) is an odd function, then | f(x) | is

A
an odd function
B
an even function
C
neither odd nor even
D
even and odd

Question 125Single Answer

How many terms are there in the expansion of
( 1 + 2x + x2 )10 ?

A
11
B
20
C
21
D
30

Question 126Single Answer

The sum of the first five terms and the sum of the first ten terms of an AP are same. Which one of the following is the correct statement ?

A
The first term must be negative
B
The common difference must be negative
C
Either the first term or the common difference is negative but not both
D
^{Both the first term and the common difference are negative}

Question 127Single Answer

If A = { 1 , 3 , 5 , 7 }, then what is the cardinality of the power set P (A) ?

A
8
B
15
C
16
D
17

Question 128Single Answer

What is the difference in the roots of the equation x2 – 10x + 9 = 0 ?

Question 129Single Answer

If 8x – 9y = 20 and 7x – 10y = 9 , then what is 2x – y equal to ?

A
10
B
11
C
12
D
13

Question 130Single Answer

The quadratic equation x2 + bx + 4 = 0 will have real roots if

A
b ≤ -4 only
B
b ≥ 4 only
C
^{-4 < b < 4}
D
^{b ≤ -4, b}⁴

Question 131Single Answer

Question 132Single Answer

Question 133Single Answer

A
4096
B
2048
C
1024
D
512

Question 134Single Answer

Question 135Single Answer

If A is a finite set having n elements , then the number of relations which can be defined in A is

A
2n
B
n2
C
2n2
D
nn

Question 136Single Answer

If the positive integers a , b , c , d are in AP , then the numbers abc , acd , bcd are in

A
HP
B
AP
C
GP
D
None of the above

Question 137Single Answer

^{Which one of the following is an example of non-empty set ?}

A
Set of all even prime numbers
B
( x : x2 – 2 = 0 and x is rational )
C
{ x : x is a natural number , x < 8 and simultaneously x > 12 }
D
{ x : x is a point common to any two parallel lines }

Question 138Single Answer

A
2 + i
B
2 – i
C
-2 + i
D
-3 – I

Question 139Single Answer

The number 83 is written in the binary system as

A
100110
B
101101
C
1010011
D
110110

Question 140Single Answer

The relation R in the set Z of integers given by R = { (a,b ) : a – b is divisible by 5 } is

A
reflexive
B
reflexive but not symmetric
C
symmetric and transitive
D
an equivalence relation

Question 141Single Answer

A
2n – 1
B
n
C
nỊ
D
2n

Question 142Single Answer

What is 0.9 + 0.09 + 0.009 + ….equal to ?

A
1
B
1.01
C
1.001
D
1.1

Question 143Single Answer

How many real roots does the quadratic equation f (x) = x2 + 3 ІxІ + 2 = 0 have ?

A
One
B
Two
C
four
D
No real root

Question 144Single Answer

In a group of 50 people , two tests were conducted , one for diabetes and one for blood pressure, 30 people were diagnosed with diabetes and 40 people were diagnosed with high blood pressure. What is the minimum number of people who were having diabetes and high blood pressure ?

A
0
B
10
C
20
D
30

Question 145Single Answer

Consider the following statements :
1. The product of two non-zero matrices can never be identity matrix.
2. The product of two non-zero matrices can never be zero matrix. Which of the above statements is/are correct ?

A
1 only
B
2 only
C
Both 1 and 2
D
Neither 1 nor 2

Question 146Single Answer

What is the area of the parabola x2 = y bounded by the line y = 1 ?

Question 147Single Answer

Question 148Single Answer

A
x sin x + c
B
x cos x + c
C
–x sin x + c
D
–x cos x + c

Question 149Single Answer

A
1
B
2
C
4
D
None of the above

Question 150Single Answer

The position vectors of the points A and B are respectively …………….and …….. What is the length of AB ?

A
11
B
9
C
7
D
6

Question 151Single Answer

The vectors I – 2x …- 3y..and ………….are orthogonal to each other. Then the locus of the point ( x,y ) is

A
hyperbola
B
ellipse
C
parabola
D
circle

Question 152Single Answer

What is the value of p for which the vector p(2…………..) is of 3 units length ?

Question 153Single Answer

. If…………………………………………………………………………………………..and ……..are three vectors such that …….is perpendicular to ….,then what is t equal to ?

Question 154Single Answer

The mean of 20 observations is 15. On checking, it was found that two observation were wrongly copied as 3 and 6 . If wrong observations are replaced by correct values 8 and 4 , then the correct mean is

A
15
B
15. 15
C
15.35
D
16

Question 155Single Answer

The arithmetic mean of the squares of the first n natural numbers is

Question 156Single Answer

Consider the following statements :
1. Both the regression coefficients have same sign.
2. If one of the regression coefficients is greater than unity, the other must be less than unity.
Which of the above statements is/are correct ?

A
1 only
B
2 only
C
Both 1 and 2
D
Neither 1 nor 2

Question 157Single Answer

Which one of the following measures is determined only after the construction of cumulativr frequency distribution ?

A
Arithmetic mean
B
Mode
C
Median
D
Geometric mean

Question 158Single Answer

Coefficient of correlation is the measure of

A
central tendency
B
dispersion
C
both central tendency and dispersion
D
neither central tendency nor dispersion

Question 159Single Answer

Question 160Single Answer

Question 161Single Answer

A
⁰
B
C
¹
D
2

Question 162Single Answer

The maximum value of the function f (x) = x3 + 2x2 4x + 6 exists at

A
x = -2
B
x = 1
C
x = 2
D
x = - 1

Question 163Single Answer

A
x = 0
B
x = 2
C
x = 4
D
x = - 4

Question 164Single Answer

Question 165Single Answer

Question 166Single Answer

Question 167Single Answer

y = 2 cos x + 3 sin x satisfies which of the following differential equations ?

Select the correct answer using the code given below .

A
1 only
B
2 only
C
Both 1 and 2
D
Neither 1 nor 2

Question 168Single Answer

The differential equation of all circles whose centres are at the origin is

Question 169Single Answer

Question 170Single Answer

Question 171Single Answer

What is the area bounded by the lines x = 0, y = 0 and x + y + 2 = 0 ?

A
B
1 square unit
C
2 square units
D
4 square units

Question 172Single Answer

What is the derivative of sin(sin x) ?

A
cos (cos x)
B
cos (sin x)
C
cos (Sin x) cos x
D
cos (cos x) cos x

Question 173Single Answer

What is the derivative of | x – 1 | at x = 2 ?

A
– 1
B
0
C
1
D
Derivative does not exist

Question 174Single Answer

If three events A , B , C are mutually exclusive, then which one of the following is correct ?

Question 175Single Answer

What is the variance of the first 11 natural numbers ?

A
10
B
11
C
12
D
13

Question 176Single Answer

Question 177Single Answer

In a binomial distribution the occurrence and the non-occurrence of an event are equally likely and the mean is 6. The number of trials required is

A
15
B
12
C
10
D
6

Question 178Single Answer

A die is tossed twice . What is the probability of getting a sum of 10 ?

Question 179Single Answer

Three dice are thrown . What is the probability of getting a triplet ?

Question 180Single Answer

Consider the following statements :
1. If A and B are exhaustive events, then their union is the sample space.
2. If A and B are exhaustive events, then their intersection must be can empty event.
Which of the above statements is/are correct ?

A
1 only
B
2 only
C
Both 1 and 2
D
Neither 1 nor 2

Question 181Single Answer

Consider the following statements :
1. The algebraic sum of the deviations of a set n values from its arithmetic mean is zero.
2. In the case of frequency distribution, mode is the value of the variable which corresponds to maximum frequency.
Which of the statements given above is/are correct ?

A
^{1 only}
B
2 only
C
^{Both 1 and 2}
D
^{Neither 1 nor 2}

Question 182Single Answer

Which one of the following may be the parameter of a binomial distribution ?

A
np = 2 , npq = 4
B
n = 4 , p =
C
n = 8 , p = 1
D
np = 10, npq = 8

Question 183Single Answer

What is the number of outcomes when a coin is tossed and then a die is rolled only in case a head is shown on the coin ?

A
6
B
7
C
8
D
None of the above

Question 184Single Answer

Question 185Single Answer

What is the probability that there are 5 Mondays in the month of February 2016 ?

A
⁰
B
C
D

Question 186Single Answer

Consider the following statements :
1. Pie diagrams are suitable for categorical data.
2. The are length of a sector of a pie diagram is proportional to the value of the component represented by the sector.
Which of the statements given above is/are correct ?