Kurukshetra a journal on rural development is published by
A
Ministry of Finance
B
Ministry of Information and Broadcastin
C
Ministry of Rural Development
D
Planning Commission
Question 3Single Answer
Devaluation of a currency means
A
Fixing the value of the currency in conjuction with the movement in the value of a basket of predetermined currencies
B
Reduction in the value of a currency vis-à-vis major internationally traded currencies
C
Fixing the value of currency in multilateral consultaion with the IMF the World Bank and major trading partners
D
Permitting the currency to seek its worth in the international market
Question 4Single Answer
In India rural incomes are generally lower than the urban incomes, which of the following reasons account for this
1. a large number of farmers are illiterate and know little about scientific agriculture
2. prices of primary products are lower than those of manufactured products
3. Investments in agriculture has been low when compared to investment in industry
A
1 and 3
B
2 and 3
C
1 and 2
D
1,2 and 3
Question 5Single Answer
Sattriya dance form is famous in which of these states ?
A
Assam
B
Himachal Pradesh
C
Punjab
D
Tamil Nadu
Question 6Single Answer
Which is the national game of Bhutan ?
A
badminton
B
basketball
C
football
D
archery
Question 7Single Answer
When was the Constituent Assembly of India formed?
A
1946
B
1947
C
1948
D
1950
Question 8Single Answer
Who is known as the "Missile Man of India"?
A
Dr. Homi J. Bhabha
B
Dr. Vikram Sarabhai
C
Dr. APJ Abdul Kalam
D
Dr. Satish Dhawan
Question 9Single Answer
Which is the longest river in India?
A
Yamuna
B
Ganges
C
Brahmaputra
D
Godavari
Question 10Single Answer
The Western Ghats are also known as:
A
Sahyadris
B
Vindhyas
C
Satpuras
D
Aravallis
Question 11Single Answer
Which country celebrated its 250th anniversary (Semiquincentennial) on July 4, 2026?
A
France
B
Australia
C
India
D
United States
Question 12Single Answer
What was the reported death toll range from the 2026 Venezuela earthquakes as of early July 2026?
A
2,000–3,500+
B
Under 500
C
Exactly 1,000
D
Over 10,000
Question 13Single Answer
Which Indian minister began a four-nation West Asian tour in early July 2026, later heading to the US?
A
Finance Minister Nirmala Sitharaman
B
Home Minister Amit Shah
C
Defence Minister Rajnath Singh
D
External Affairs Minister S. Jaishankar
Question 14Single Answer
Which country clinched a record seventh ICC Women’s T20 World Cup title around July 2026?
A
Australia
B
England
C
India
D
New Zealand
Question 15Single Answer
What major diplomatic pact did Australia sign with Fiji in July 2026?
A
Trade agreement
B
Defence pact
C
Climate accord
D
Education MoU
Physics & Chemistry
Question 16Single Answer
Temperature can be expressed as derived quantity in terms of
A
length and mass
B
mass and time
C
length, mass and time
D
None of these
Question 17Single Answer
Electron volt is a unit of
A
potential difference
B
charge
C
energy
D
capacity
Question 18Single Answer
Dimensions of impulse are
A
[MLT –1]
B
[MLT²]
C
[MT–2]
D
[ML–1T–3]
Question 19Single Answer
Potential is measured in
A
joule/coulomb
B
watt/coulomb
C
newton–second
D
None of these
Question 20Single Answer
One Nanometer is equal to
A
10–9m
B
10–6m
C
10–10m
D
10–3m
Question 21Single Answer
Maxwell is the unit of
A
magnetic susceptibility
B
intensity of Magnetisation
C
magnetic Flux
D
magnetic Permeability
Question 22Single Answer
Which of the following is derived physical quantity ?
A
Mass
B
Velocity
C
Length
D
Time
Question 23Single Answer
Which of the following is not a synthetic fibre:
A
Anygora
B
Rayon
C
Nylon
D
Polyster
Question 24Single Answer
Which one of the following is not contained in Portland cement ?
A
Ca3Al2O6
B
Ca3SiO5
C
Ca2SiO4
D
Ca3(PO4)2
Question 25Single Answer
What is the reson for white cement to be white ?
A
It does not contain carbon
B
It does not contain silicon
C
It does not contain iron
D
It does not contain calcium
Question 26Single Answer
Which fertilizer is assimilated directly by the plant ?
A
Super phosphate
B
Nitrolim
C
Muriate of Potash
D
Humus
Question 27Single Answer
Which of the following chemicals is used in foam fire extinguishers ?
A
Aluminium sulphate
B
Copper sulphate
C
Cobalt sulphate
D
Nickel sulphate
Question 28Single Answer
What is a mixture of potassium nitrate, powdered charcoal and sulphur called ?
A
Glass
B
Cement
C
paint
D
Gun powder
Question 29Single Answer
Which one of the following chemicals is used in beauty parlours for hair – setting ?
A
Sulphur based
B
Phosphorus based
C
Silicon based
D
Iron based
Question 30Single Answer
Which one of the following is used as a mordant in dyeing and tanning industry ?
A
Magnesium oxide
B
Magnesium carbonate
C
Magnesium chloride
D
Magnesium sulphate
Basics of Computer Application
Question 31Single 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 32Single 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 33Single 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 34Single 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 35Single 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 36Single 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 37Single 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 38Single 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 39Single 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 40Single 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
Basics of Enviroment and Pollution Control
Question 41Single Answer
Which of the following defines an ecosystem?
A
A group of similar organisms
B
The interaction between living organisms and their physical environment
C
A community of plants
D
A population of animals
Question 42Single Answer
What is biodiversity?
A
The number of individuals in a population
B
The variety of life in a particular habitat or ecosystem
C
The amount of rainfall in a region
D
The average temperature of an area
Question 43Single Answer
Which of the following is an abiotic factor?
A
Bacteria
B
Plants
C
Sunlight
D
Animals
Question 44Single Answer
Which of the following is a biotic factor?
A
Water
B
Soil
C
Fungi
D
Air
Question 45Single Answer
What is sustainable use of natural resources?
A
Using resources without considering future needs
B
Using resources in a way that meets current needs without compromising future availability
C
Exploiting resources for maximum profit
D
Ignoring resource depletion
Question 46Single Answer
Which of the following is an example of a natural resource?
A
Plastic
B
Steel
C
Coal
D
Synthetic fibers
Question 47Single Answer
What is the role of decomposers in an ecosystem?
A
To produce food
B
To consume living organisms
C
To break down dead organic matter
D
To provide shelter
Question 48Single Answer
Which level of the food chain do plants occupy?
A
Primary consumers
B
Secondary consumers
C
Producers
D
Decomposers
Question 49Single Answer
What is the significance of biodiversity?
A
It increases vulnerability to diseases
B
It provides ecosystem stability and resilience
C
It reduces the number of natural resources
D
It has no impact on the environment
Question 50Single Answer
What is the primary source of energy for most ecosystems?
A
Chemical energy
B
Geothermal energy
C
Solar energy
D
Nuclear energy
Important Questions Package
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Mechanical
Question 51Single Answer
If a submerged body displaced from its equilibrium position, returns to its original position, it is called __________.
A
thermal equilibrium
B
neutral equilibrium
C
unstable equilibrium
D
stable equilibrium
Question 52Single Answer
In a flow measurement, a venturi meter is preferred over an orifice plate because _____.
A
energy of head loss is less
B
It is cheaper
C
pressure drop is more
D
space is limited
Question 53Single Answer
Pitot tube measures ______.
A
dynamic pressure of a moving stream
B
guage pressure
C
temperature of moving water
D
pressure difference between two fluids
Question 54Single Answer
Which of the following is not a property of an ideal fluid ?
A
flow is irrotational
B
it has no viscosity
C
it has viscosity
D
it is incompressible
Question 55Single Answer
Nozzle used in steam turbines convert ________.
A
enthalpy of steam into work
B
enthalpy of steam into kinetic energy
C
enthalpy of steam into pressure energy
D
pressure energy into work
Question 56Single Answer
Which of the following assumptions is the most relevant in air-standard cycle analysis ?
A
All the processes within the cycle are irreversible
B
Working fluid is a fixed mass
C
Specific heat of air changes during the cycle
D
Cycle is assumed to be an open cycle
Question 57Single Answer
The modern Francis turbine is a ___________flow turbine .
A
tangential
B
axial
C
radial
D
mixed
Question 58Single Answer
Variation of stress with strain rate for a Newtonian fluid is ______ .
A
hyperbolic
B
linear
C
elliptical
D
parabolic
Question 59Single Answer
Which of the following is NOT a part of refrigeration systems ?
A
Turbine
B
Evaporator
C
Compressor
D
Condenser
Question 60Single Answer
Which of the following is NOT an intensive property ?
A
Temperature
B
Total volume
C
Pressure
D
Density
Question 61Single Answer
Which of the following does NOT represent a unit of viscosity ?
A
Stoke
B
Poise
C
m²/sec
D
N-m/sec
Question 62Single Answer
__________ in the fuel is oxidised during knocking .
A
Hydrocarbon
B
Phosphorous
C
Water
D
Coal
Question 63Single Answer
_________ is defined as the ability of a material to resist deformation under action of an external load .
A
Stiffness
B
Resilience
C
Brittleness
D
Toughness
Question 64Single Answer
Draught is produced in locomotive boilers by which of the following components ?
A
Locomotive
B
Steam jet
C
Centrifugal fan
D
Chimney
Question 65Single Answer
For a steady flow, the value of all fluid properties at any fixed point _________ .
A
do not change with location
B
change with time
C
change with location
D
do not change with time
Question 66Single Answer
For a floating body, if the metacentre is below the centre of gravity, then the body is said to be __________ equilibrium .
A
thermal
B
stable
C
unstable
D
neutral
Question 67Single Answer
________ is useful for measuring flow of a conducting fluid .
A
Orifice meter
B
Rotameter
C
Vane meter
D
Electro-magnetic flow meter
Question 68Single Answer
A two- stroke engine consists of ________ port (s)
A
Three
B
Four
C
One
D
Two
Question 69Single Answer
Air Cooling is mostly preferred for _________ .
A
heavy truck
B
buses
C
moto cycles
D
multi-utility vehicles
Question 70Single Answer
_______ valves are provided in reciprocating compressors .
A
Simply supported
B
Solenoid
C
Plate
D
Poppet
Question 71Single Answer
Benson boiler have ______ water drum (s)
A
One
B
Zero
C
Three
D
Two
Question 72Single Answer
_________ is used for pumping water into a boilers .
A
Economiser
B
Duplex pump
C
Feed pump
D
Rotor
Question 73Single Answer
The function of a carburetor in internal combustion engines is :
A
to control fuel alone
B
to cool exhaust gases
C
to maintain air-fuel ratio
D
to control air alone
Question 74Single Answer
The device which transfers energy from the ______ to _____ the is known as hydraulic turbine .
A
atmosphere; fluid
B
rotor; fluid
C
fluid; rotor
D
fluid; atmosphere
Question 75Single Answer
The flash chamber in the single stage VCR cycle serves to ________ .
A
decrease the compression ratio
B
increase the refrigerating effect
C
increase the compression ratio
D
decrease the refrigerating effect
Question 76Single Answer
Define thermodynamics .
A
It is a science which deals with the relation between heat, work and properties of systems
B
It is a science which deals with work done
C
It deals with dynamics under thermal conditions
D
It is science which deals with the relation between work and properties
Question 77Single Answer
Which of the following statements is correct about a Benson boiler ?
A
Air is sent through the same direction
B
There is no recirculation of water
C
Steam is sent out in multiple directions
D
Flue gases pass only in one direction
Question 78Single Answer
Within a refrigeration system, the expansion valve is incorporated between the ________ .
A
Super-heater and sub-cooler
B
compressor and condenser
C
evaporator and compressor
D
condenser and evaporator
Question 79Single Answer
The reversed ______ cycle employed for passenger aircraft systems .
A
Carnot
B
Atkinson
C
Ericsson
D
Brayton
Question 80Single Answer
Fusible plug in a steam boiler is placed ______ .
A
below the water level indicator
B
at he crown of the furnace
C
at the fire grate of the boiler
D
near the manhole
Question 81Single Answer
Aqua ammonia solution used in a vapour absorption refrigeration system is a solution of ammonia in ________ .
A
CF3
B
LiBr
C
H2O2
D
H2O
Question 82Single Answer
Coated electrodes are used in ______ .
A
gas tungsten arc welding
B
submerged arc welding
C
tungsten insert gas welding
D
shielded metal arc welding
Question 83Single Answer
Where is air cycle refrigeration commonly used ?
A
Domestic refrigerator
B
Cold storage
C
Aircraft conditioning
D
Car air conditioning
Question 84Single Answer
________, is not a water tube boiler .
A
Benson boiler
B
Babcock-Wilcox boiler
C
Stirling boiler
D
Scotch marine
Question 85Single Answer
Stoke is another unit of -
A
kinematic viscosityy
B
velocity gradient
C
Shear stress
D
dynamic viscosit
Question 86Single Answer
For a refrigerating machine, capacity is expressed as ______ .
A
the lowest temperature attained
B
inside volume of the cabinet
C
gross weight of the machine
D
rate of heat extraction from the space being cooled
Question 87Single Answer
The value of quality or dryness fraction of a substance in saturated liquid-vapor mixture is ________ .
A
1
B
2
C
Zero
D
between Zero and 1
Question 88Single Answer
Uniform flow is the type of flow where in velocity at any given time ________- with respect to space .
A
Decreases
B
Does not change
C
Increases
D
Changes
Question 89Single Answer
______ falls under the category of a water tube boiler .
A
Locomotive boiler
B
Lancashire boiler
C
Cornish boiler
D
LaMont boiler
Question 90Single Answer
Chaplets are used in ________ .
A
forging
B
casting
C
welding
D
extrusion
Question 91Single Answer
Which of the following is NOT a unit of pressure ?
A
Pa
B
Bar
C
N/m²
D
Joule
Question 92Single Answer
What was the first refrigerant used in continuous refrigeration system ?
A
Ammonia
B
Water
C
Air
D
Carbon dioxide
Question 93Single Answer
For a 2 m deep swimming pool, pressure difference between the top and the bottom of the pool is ________ kPa .
A
22
B
19.6
C
11
D
12
Question 94Single Answer
Pressure measurement is done by ____. by measuring heat loss from a heated wire .
A
A pirani gauge
B
a manometer
C
a barometer
D
an orifice meter
Question 95Single Answer
In the Rankine cycle, the fluid which enters the boiler is :
A
water
B
steam
C
mercury
D
oxygen
Question 96Single Answer
Percentage elongating measured during tensile testing indicates _____ .
A
malleability
B
fatigue strength
C
creep
D
ductility
Question 97Single Answer
For a given centrifugal pump, discharge varies _______ with speed .
A
fifth power of
B
linearly
C
inversely
D
square root of
Question 98Single Answer
Foaming is a phenomenon that occurs in the boiler feed water due to _____ .
A
nitrogen peroxide
B
manganese
C
sodium chloride
D
oil
Question 99Single Answer
Compounding of a steam turbine is done to ______ .
A
balance the rotor
B
reduce the rotor speed
C
reduce the blade friction
D
connect the shaft
Question 100Single Answer
Any change in entropy could be achieved by changing______ .
A
velocity
B
heat
C
acceleration
D
mass
Question 101Single Answer
Smoke emitting from a lighted cigarette represents ________ .
A
point
B
pathline
C
streakline
D
streamline
Question 102Single Answer
The splash system is NOT used to lubricate _______ .
A
tappets
B
camshafts
C
gear teeth and roller bearings
D
piston rings
Question 103Single Answer
A dead weight tester is used widely for ______ .
A
producing high pressures
B
accurate measurement of loads
C
calibration of another equipment
D
testing magnitude of the given weight
Question 104Single Answer
_______ CANNOT be classified as inversion (s) of a single-slider crank mechanism .
A
Elliptical trammel
B
Whitworth quick-return mechanism
C
Oscillating cylinder engine
D
Crank and slotted-lever mechanism
Question 105Single Answer
Which of the following is NOT a part of Rankine cycle ?
A
Pump
B
Compressor
C
Boiler
D
Turbine
Question 106Single Answer
A power plant that uses a gas turbine followed by a steam turbine for necessary power generation is known as __________ cycle power plant .
A
combined
B
bottom
C
generation
D
topping
Question 107Single Answer
In the context of properties of steel, which of the following statement is highly relevant ?
A
Presence of carbon contents imparts strength to iron
B
Presence of carbon does not influence the heat-treatment process
C
Presence of manganese decreases strength.
D
Presence of sulphide improves corrosion resistance
Question 108Single Answer
Those pumps employed for mud related work have ______ type of impeller .
A
an open
B
a two-side shrouded
C
a double-suction
D
a one-side shrouded
Question 109Single Answer
If the oil viscosity increased, then the wear loss _________ .
A
increases
B
becomes zero
C
decreases
D
remains the same
Question 110Single Answer
Impact load is an example of :
A
uniform load
B
static load
C
dynamic load
D
fatigue load
Question 111Single Answer
Internal energy associated with kinetic energy of molecules is ______ .
A
latent energy
B
nuclear energy
C
sensible energy
D
chemical energy
Question 112Single Answer
A capillary tube is employed in a refrigeration cycle to _______ .
A
produce a cooling effect
B
control temperature of the refrigerated space
C
reduce pressure of the refrigerant
D
control flow of the refrigerant
Question 113Single Answer
The Babcock-Wilcox boiler is classified as a water tube boiler because :
A
it has a large reservoir of water at the bottom
B
water passes around the tubes having hot gases
C
water heater is mounted on the boiler itself
D
water passes through the tube and hot gases around
Question 114Single Answer
Otto cycle of a car engine consists of :
A
two isochore and two reversible adiabatic cycles
B
four adiabatic cycles
C
one isochore cycle only
D
one adiabatic cycle only
Question 115Single Answer
When hot air exhausting from the turbine is used to heat up the compressor exit flow, it is knows as _______ .
A
regeneration
B
re-evaporating
C
intercooling
D
intracooling
Question 116Single Answer
If the specific gravity of oil is 0.7, then its density in kg/m³ will be _______ .
A
700
B
7
C
70
D
7000
Question 117Single Answer
viscous forces are NOT available in _______ .
A
laminar flow
B
irrational flow
C
rotational flow
D
transitional flow
Question 118Single Answer
Which of the following is the most widely used fuel in boilers ?
A
Pulverised coal
B
Wood
C
Oil
D
Anthracite coal
Question 119Single Answer
If the relationship between shear stress of a fluid is NOT linear to the velocity gradient, then the fluid is :
A
a compressible fluid
B
a Newtonian fluid
C
a non-Newtonian fluid
D
an ideal fluid
Question 120Single Answer
In a Pelton wheel, jet ratio values are ________ .
A
More than 6
B
between 2 and 5
C
less than 1
D
less than or equal to 2
Question 121Single Answer
What is kinematic viscosity ?
A
It is the rate of change of shear stress
B
It is the ratio of dynamic viscosity to relative density
C
It is the ratio of dynamic viscosity to mass density
D
It is the rate of change of shear strain
Question 122Single Answer
The efficiency of an ideal diesel engine does NO directly depend on ______ .
A
the cut-off ratio
B
the compression ratio
C
the fluid pressure
D
the isentropic index
Question 123Single Answer
Which of the following equipment gives direct reading of fluid flow rates ?
A
Nutating disk flow meter
B
Hot wire anemometer
C
Rotameter
D
Orifice meter
Question 124Single Answer
The tendency of material to fracture without appreciable deformation is called ______ .
A
stiffness
B
plasticity
C
toughness
D
brittlensess
Question 125Single Answer
Lancashire boiler has ______ flue tube(s), whereas Cornish boiler has _____ flue tube (s) .
A
3 ; 2
B
2; 2
C
2; 1
D
1; 2
Question 126Single Answer
The maximum temperature in case of internal combustion engines is obtained at ______ .
A
end of the compression process
B
end of the expansion process
C
start of the compression process
D
start of the expansion process
Question 127Single Answer
The moisture content o steam at the turbine exit of a steam power plant operating on the Rankine cycle can be decreased by :
A
increasing boiler pressure
B
super cooling steam
C
decreasing boiler pressure
D
reheating steam
Question 128Single Answer
Which of the following is NOT a non-ferrous alloy ?
A
Stainless steel
B
Magnesium
C
Titanium
D
Aluminium
Question 129Single Answer
The flow is volute casing outside the rotating impeller of a centrifugal pump is :
A
forced vortex flow
B
radial flow
C
free vortex flow
D
axial flow
Question 130Single Answer
The compression ratio in ideal air standard cycles is the ratio of :
A
minimum pressure to maximum pressure
B
minimum volume to maximum volume
C
maximum pressure to minimum pressure
D
maximum volume to minimum volume
Question 131Single Answer
Two stroke engine consist of a combined process of _____ in a single stroke .
A
compression and expansion
B
suction and compression
C
suction and expansion
D
suction and exhaust
Question 132Single Answer
The density of fluid does NOT affect the working of ______ .
A
an electro-magnetic flow meter
B
a nozzle meter
C
a rotameter
D
an orifice meter
Question 133Single Answer
Which of the following processes is NOT part of an ideal Otto cycle ?
A
Isentropic expansion
B
Heat addition at constant volume
C
Isentropic compression
D
Heat addition at constant pressure
Question 134Single Answer
In which of the following types of compressors are the motor and compressor enclosed in the same housing ?
A
Open-type compressor
B
Hermetic compressor
C
Reciprocating compressor
D
Axial flow type compressor
Question 135Single Answer
An oil of specific gravity 0.7 is stored in a closed tank up to a height of 2m. What will be the gauge pressure at the bottom of the tank ?
A
0.14 MPa
B
1.4 MPa
C
0.014 MPa
D
14 MPa
Question 136Single Answer
If there is no change in pressure at any point of the system with time, then the system is said to be in :
A
chemical equilibrium
B
mechanical equilibrium
C
Phase equilibrium
D
thermal equilibrium
Question 137Single Answer
If Valve of dryness fraction is 0, it indicates that working fluid is at ______ .
A
Compressed liquid
B
Saturated liquid
C
saturated vapour
D
supreheated vapour
Question 138Single Answer
In the context of roto-dynamic machines, which of the following statements is correct ?
A
There will be a relative motion between the rotor vanes and the fluid
B
Linear momentum is the normal to the stator
C
Linear momentum is the direction normal to the rotor
D
While flowing through the stator. linear momentum changes
Question 139Single Answer
When two elements of a pair are connected such that they can only turn about a fixed axis of another element, they are called _______ .
A
a turning pair
B
a screw pair
C
a spherical pair
D
a sliding pair
Question 140Single Answer
In high-speed aircrafts flying at high altitudes, why is cooling of the cabin required even temperature outside is very low ?
A
Since outside pressure is very high
B
Due to absence of solar radiation
C
To improve fuel efficiency
D
Due to large internal heat generation
Question 141Single Answer
Fusible plug is generally made up of an alloy (gunmetal) which consists of copper, tin and _______ .
A
cast iron
B
zinc
C
aluminium
D
manganese
Question 142Single Answer
In the context of laminar flow, which of the following statement sis the most appropriate ?
A
Laminar flow is observed in high viscous fluids at low velocity
B
There will be an exchange of momentum from fluid particles of one layer of another layer
C
Flow is always through small tanks
D
Particles move in turbulent order
Question 143Single Answer
Which of the following statements is more relevant in the context ?
A
If center of gravity is below the centre of buoyancy, the body is unstable
B
Metacentric height is positive in case of unstable equilibrium
C
The centre of buoyancy in a submerged boy remains
D
When the body is fully submerged, shape of he displaced fluid alters when the body is tilted
Question 144Single Answer
Determinate the COP (coefficient of performance) of a heat pump if the rate of heat rejected is 360 kJ/min and power supplied is 2 kW .
A
4
B
2
C
3
D
1
Question 145Single Answer
Define free-body diagram
A
A figure that represent external forces acting on a body
B
A diagram that represents internal forces acting on a body
C
A free-hand sketch representing a body
D
A diagram that only represents moments acting on a body
Question 146Single Answer
A ball and socket joint is an example of a ________pair .
A
turning
B
screw
C
rolling
D
spherical
Question 147Single Answer
From among the given options, Poisson's ration is the highest for :
A
iron
B
wood
C
copper
D
rubber
Question 148Single Answer
What is ductility in steel ?
A
Ratio of ultimate stress to yield stress
B
Stress at yield stress
C
Amount of strain a material can withstand before fracture
D
Ratio of change in length to original length
Question 149Single Answer
If the gauge pressure of air in a cylinder is 250 kPa, then it's absolute pressure will be _______ .
A
50 kPa
B
150 kPa
C
350 kPa
D
450 kPa
Question 150Single Answer
Flow velocity at the throat of a converging-diverging nozzle is ______, when designed for maximum discharge .
