Latest MPESB Fisheries Inspector Exam Question (Objective Questions), MCQ in English
Subjects : General Knowledge, General Hindi, General English, General Mathematics, General Reasoning Ability, General Science, General Computer Knowledge, Fisheries Science
Question Bank MPESB Fisheries Inspector Exam - English
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
Which of the following programmes aims at the promotion of savings among rural women
A
Rashtriya Mahila Kosh
B
Indira Mahila Yojna
C
Jawahar Rozgar Yojna
D
Mahila Samridhi Yojna
Question 6Single Answer
Which of the following is an important Paleolithic site of Madhya Pradesh?
A
Narmada valley
B
Hathnora
C
Jogdaha
D
All of the above
Question 7Single Answer
Bhimbetka Rock shelters, a UNESCO world Heritage Site is located at which place?
A
Indore
B
Bhopal
C
Raisen
D
Mandla
Question 8Single Answer
kunjun in the Sidhi district is a major site of which age?
A
Neolithic
B
Mesolithic
C
Palaeolithic
D
Stone
Question 9Single Answer
Kaytha village in Ujjain district was an example of
A
Mesolithic age
B
Neolithic age
C
Chalcolithic age
D
All of the above
Question 10Single Answer
Copper made utensils and tools have been found in which of the following places?
A
Balaghat
B
Jabalpur
C
Sagar
D
Both (a) and (b)
Question 11Single Answer
Which Chief Minister chaired the Madhya Pradesh Cabinet meeting that approved major development proposals in May 2026?
A
Shivraj Singh Chouhan
B
Mohan Yadav
C
Kamal Nath
D
Digvijaya Singh
Question 12Single Answer
The Madhya Pradesh Cabinet approved development and welfare proposals worth approximately how much in May 2026?
A
₹18,500 crore
B
₹22,300 crore
C
₹29,540 crore
D
₹35,000 crore
Question 13Single Answer
Which sectors received major allocations under the May 2026 Cabinet approvals?
A
Roads and healthcare
B
All of the above
C
Education and infrastructure
D
Irrigation and social welfare
Question 14Single Answer
Madhya Pradesh declared 2026 as which special year?
A
Year of Agriculture
B
Year of Tourism
C
Year of Youth
D
Year of Technology
Question 15Single Answer
What is the theme of Madhya Pradesh’s Year of Agriculture 2026?
A
Green Fields Green State
B
Self-Reliant Farming Initiative
C
Smart Agriculture Mission
D
Prosperous Farmers – Prosperous State
Question 16Single Answer
Which Governor announced 2026 as the Year of Agriculture in Madhya Pradesh?
A
Anandiben Patel
B
Lalji Tandon
C
Kalraj Mishra
D
Mangubhai Patel
General Hindi
Question 17Single Answer
शुद्ध वर्तनी का चयन कीजिए
A
अधम्र
B
अध्रम
C
अधर्म
D
अध्रिम
Question 18Single Answer
शुद्ध वर्तनी का चयन कीजिए
A
स्थायि
B
स्थायी
C
स्थाई
D
स्थाइ
Question 19Single Answer
वर्तनी की दृष्टि से सही शब्द है?
A
महत्व
B
महतव
C
महत्तव
D
महतत्व
Question 20Single Answer
निम्नलिखित में से शुद्ध छांटिए?
A
आयुष्मान
B
आयुश्मान
C
आयुशमान
D
आयुश्यमान
Question 21Single Answer
शुद्ध शब्द नहीं हैं?
A
कवियत्री
B
कौसल्या
C
एश्वर्य
D
श्रृंगार
Question 22Single Answer
शुद्ध वर्तनी है -
A
पूज
B
पुजय
C
पूज्य
D
पुज्य
Question 23Single Answer
शुद्ध वर्तनी है -
A
अनुसरण
B
अनूशरणन
C
अनुशरण
D
अणुशर
Question 24Single Answer
किस क्रमांक में सभी शुद्ध हैं?
A
एक्य,साप्ताहिक
B
आजीविका,आशीर्वाद
C
आर्शिवाद ,अनूकूल
D
निरिक्षण ,कृपालु
Question 25Single Answer
'उज्वल' शब्द का शुद्ध रूप है ?
A
उज्जव
B
उज्ज्ल
C
उज्ज्वल
D
उजवल
Question 26Single Answer
निम्नलिखित प्रश्न में चार वैकल्पिक वर्तनियाॅ दी गई है?
A
जागृत
B
जाग्रति
C
जाग्रित
D
जाग्रत
Question 27Single Answer
निम्नलिखित प्रश्न में चार वैकल्पिक वर्तनियाॅ दी गई है?
A
उन्नति
B
उनति
C
उन्ती
D
उनती
Question 28Single Answer
निम्नलिखित प्रश्न मे चार वैकल्पिक वर्तनियाॅ दी गई है?
A
अनुशहरण
B
अनोसरण
C
अनुसरन
D
अनुसरण
Question 29Single Answer
'पृथ्वीराज रासो' किस काल की रचना है ?
A
आदिकाल
B
रीतिकाल
C
भक्तिकाल
D
आधुनिक काल
Question 30Single Answer
हिन्दी की उत्पत्ति किस भाषा से हुई है?
A
प्राकृत
B
संस्कृत
C
शौरसैनी अपभ्रंश
D
मागधी
General English
Question 31Single Answer
I go to Madurai by —– Vaigai Express
A
a
B
an
C
some
D
the
Question 32Single Answer
Have the car stolen!
A
Steal the car
B
You should have the stolen car
C
Get someone to steal the car
D
They have stolen the car
Question 33Single Answer
The payment was collected by the hardworking salesman.
A
The hardworking salesman collected the payment.
B
the salesman who worked heard was able to collect the payment.
C
to collect the payment the salesman had to work hard.
D
The hardworking salesman was able to collect the payment.
Question 34Single Answer
I had to stop all my work to complete this project.
A
All other work had to be stopped to complete this project by me
B
For completing this project all other work must be stopped
C
For completing this project I had to stop all my work
D
To complete this project all other work had been stopped by me
Question 35Single Answer
They have published the names of all the successful candidates.
A
The candidates who have succeeded their names they had published.
B
The names of all the successful candidates have been published by them
C
The candidates who have succeeded their names have been published by them.
D
The names of all the successful candidate were published by them.
Question 36Single Answer
The online shopping site lowered the prices.
A
Lowering of the prices was done by the online shopping site
B
The prices were lowered by the online shopping site
C
The prices had been lowered by the online shopping site
D
The prices have been lowered by the online shopping site
Question 37Single Answer
Who taught you to drive a truck ?
A
To drive a truck by whom were you taught?
B
Driving a truck by who were you taught?
C
Driving a truck by who were you being taught?
D
By whom were you taught to drive a truck?
Question 38Single Answer
We shall invite Suresh.
A
Suresh would be invited by us
B
Suresh would have been invited by us
C
Suresh will be invited by us
D
Suresh will have been invited by us
Question 39Single Answer
Dark clouds have overcast the evening sky.
A
By the dark clouds the evening sky was overcast.
B
The evening sky has been overcast by the dark clouds.
C
Dark clouds overcastted the evening sky.
D
The sky of the evening was overcasted by dark clouds.
Question 40Single Answer
The partners will celebrate their triumph tomorrow.
A
The triumph would be celebrated by the partners a day before
B
The triumph would be celebrated by the partners a day after
C
The triumph would have been celebrated by the partners a day after
D
The triumph will have been celebrated by the partners tomorrow
Question 41Single Answer
Why did break the vase?
A
why is the vase broken by him
B
why was the vase broken by him
C
why had been the vase broken by him
D
why has been the vase broken by him
Question 42Single Answer
Mariam was writing a note to her boss.
A
A note was written to her boss by Mariam
B
A note was wrote by Mariam to her boss
C
A note was being written by Mariam to her boss
D
A note was written by Mariam to her boss
Question 43Single Answer
The baby really enjoys that music.
A
That music was really enjoyed by the baby.
B
That music was really being enjoyed by the baby.
C
That music is really enjoyed by the baby.
D
This music was really enjoyed by the baby.
Question 44Single Answer
The weather disrupted the final match.
A
The final match has been disrupted by the weather.
B
The final match had been disrupted by the weather.
C
The final match was disrupted by the weather.
D
The final match was being disrupted by the weather.
General Mathematics
Question 45Single Answer
The elements of the set {x : x is an integer, x2 : 4} can be represent as .....Z..... . Here, Z refers to
A
{–2, 2}
B
{–1, 0, 1}
C
{–2, –1, 0, 1, 2}
D
{0, 1, 2}
Question 46Single Answer
A
B
C
D
None of these
Question 47Single Answer
If Y = {x : x is a positive factor of the number 2p – 1(2p – 1), where 2p – 1 is a prime number}, then Y can be represent in roster form as
A
{2}
B
{1, 2}
C
{1, 2, 22, ....., 2p – 1}
D
{1, 2, 22, 23,.... 2p – 1, (2p – 1)}
Question 48Single Answer
The set {x : x is a positive integer less than 6 and 3x – 1 is an even number} in roster form is
A
{1, 2, 3, 4, 5}
B
{1, 2, 3, 4, 5, 6}
C
{2, 4, 6}
D
{1, 3, 5}
Question 49Single Answer
If A B and A B, then
A
A is called a proper subset of B
B
A is called a super set of B
C
A is not a subset of B
D
B is a subset of A
Question 50Single Answer
The number of non-empty subsets of the set{1, 2, 3, 4} is
A
15
B
14
C
16
D
17
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General Mathematics
Question 51Single Answer
The number of elements of the power set of a set containing m elements is
A
2m – 1
B
m
C
m2
D
2m
Question 52Single Answer
If A = {x : x = n2, n = 1, 2, 3}, then number of proper subsets is
A
3
B
8
C
7
D
None of these
Question 53Single Answer
If A = {x : x = 4n + 1, 2 £ n £ 5},then number of subsets of A is
A
16
B
15
C
4
D
None of these
Question 54Single Answer
Let A and B be two non-empty subsets of a set X such that A is not a subset of B, then
A
A is always a subset of the complement of B
B
B is always a subset of A
C
A and B are always disjoint
D
A and the complement of B are always non-disjoint
Question 55Single Answer
Which of the following is/are empty set?
A = {x : x2 + x + 1 = 0 and x Î Z} B = {x : x is a prime number and 19 < x < 23}
A
A
B
B
C
Both A and B
D
None of the above
Question 56Single Answer
The set {x : x4 = 1 and x R} is .....X.... set. Here, X refers to
A
empty
B
finite
C
infinite
D
singleton
Question 57Single Answer
The universal set for the sets
A = {x : x2 – 5x + 6 = 0} and
B = {x : x2 – 3x + 2 = 0} having least number of elements is
A
{1, 2}
B
{1, 3}
C
{1, 2, 3}
D
{0, 1, 2, 3}
Question 58Single Answer
If A = {1, 2, 3}, B = {x € R : x2 – 2x + 1 = 0},
C = {1, 2, 2, 3} and
D = {x € R : x3 – 6x2 + 11x – 6 = 0}, then the equal sets are
A
A and B
B
A and C
C
A, B and C
D
A, C and D
General Reasoning Ability
Question 59Single Answer
How many such pairs of letters are there in the word ‘CLEANLINESS’ each of the which has as many letters between them in the word as they have in the English alphabet, in the same sequence?
A
Two
B
Three
C
Five
D
Four
E
None of these
Question 60Single Answer
Team A has scored more goals than Team B
Team C has scored fewer goals than Team B
Team A has scored fewer goals than Team C .
If the first two statements are true, the third statement is
A
True
B
False
C
Uncertain
D
None
Question 61Single Answer
If it is possible to make only one meaningful word with the second, the third, the sixth and the eight letters of the word FRAGMENT using each only once, which of the following will be the third letter of that word ? If no such word can be formed, give ‘X’ as the answer and if more than one such word can be formed, give ‘Y’ as the answer.
A
A
B
E
C
T
D
X
E
Y
Question 62Single Answer
How many such letters are there in the word ORIENTAL each of which is as far away from the beginning of the word as when they are arranged alphabetically?
A
None
B
One
C
Two
D
Three
E
More than three
Question 63Single Answer
How many such pairs of letters in the word CREDIT each of which has as many letters between them in the word as in the English alphabet?
A
None
B
One
C
Two
D
Three
E
More than three
Question 64Single Answer
How many meaningful words can be made from the letters ‘LMEA’ using each letter only once in each word?
A
None
B
One
C
Two
D
Three
E
More than three
Question 65Single Answer
If it is possible to make only one meaningful word with the first, the second, the seventh and the eighth letters of the word TEMPORAL, which of the following will be the first letter of that word? If more than one such word can be made, give ‘Y’ as the answer and if no such word can be made, give ‘X’ as the answer.
A
T
B
L
C
E
D
Y
E
X
Question 66Single Answer
If the letters of the word HANDOVER are arranged alphabetically from left to right how many letters will remain at the same position?
A
None
B
One
C
Two
D
Three
E
More than three
Question 67Single Answer
How many such pairs of letters are there in the word EXCURSION, each of which has as many letters between them in the word as they have in the English alphabet?
A
None
B
One
C
Two
D
Three
E
More than three
Question 68Single Answer
If it is possible to make only one meaningful word with the first, the second, the third, the sixth and the eighth letters of the word DEVIATION first letter of that word is your answer? If more than one such word can be made formed your answer is ‘A’ and if no such word can be formed your answer is ‘B’.
A
V
B
T
C
E
D
A
E
B
Question 69Single Answer
If each alternate letter beginning with the first in the word WORKING is replaced by the next letter in the English alphabet and each of the remaining letters is replaced by the previous letter in the English alphabet, which of the following will be the fourth from the right and after the replacement ?
A
N
B
Q
C
J
D
M
E
None of these
Question 70Single Answer
How many pairs of letters are there in the word ‘SHIFTED’ each of which has as many letters between its two letters as there are between in the English alphabet?
A
None
B
One
C
Two
D
Three
E
None of these
Question 71Single Answer
Statement: Is common currency a necessary ingredient for Europe’s growth ?
Arguments :
I. Yes, A common currency will enable entire Europe to market itself as one .
II. No, Similar experiments by Latin America countries have not affected their economies .
A
The only argument I is strong
B
Only argument II is strong
C
Either I or II is strong
D
Neither I nor II is strong
Question 72Single Answer
If it is possible to make only one meaningful word with the first, the fifth, the sixth, the tenth and the eleventh letters of the word EXCEPTIONAL using each letter only once, first letter of that word is your answer. If no such word can be made formed your answer is ‘X’ and if more than one such word can be formed your answer is ‘Y’.
A
P
B
L
C
T
D
X
E
Y
General Science
Question 73Single 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 74Single Answer
Electron volt is a unit of
A
potential difference
B
charge
C
energy
D
capacity
Question 75Single Answer
Dimensions of impulse are
A
[MLT –1]
B
[MLT²]
C
[MT–2]
D
[ML–1T–3]
Question 76Single Answer
Potential is measured in
A
joule/coulomb
B
watt/coulomb
C
newton–second
D
None of these
Question 77Single Answer
One Nanometer is equal to
A
10–9m
B
10–6m
C
10–10m
D
10–3m
Question 78Single Answer
Which of the following is not a synthetic fibre:
A
Anygora
B
Rayon
C
Nylon
D
Polyster
Question 79Single Answer
Which one of the following is not contained in Portland cement ?
A
Ca3Al2O6
B
Ca3SiO5
C
Ca2SiO4
D
Ca3(PO4)2
Question 80Single 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 81Single Answer
Which fertilizer is assimilated directly by the plant ?
A
Super phosphate
B
Nitrolim
C
Muriate of Potash
D
Humus
Question 82Single 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 83Single Answer
Which of the following contain enzymes for cellular respiration ?
A
Dictyosomes
B
Endoplasmic reticulum
C
lysosomes
D
Mitochondria
Question 84Single Answer
Which one among the following nutrients is a strctural
A
Cell membrane
B
Plasma membrane
C
Cell wall
D
Nucleus
Question 85Single Answer
Which one among the following nutrients is a structural component of the cell wall of plants ?
A
Manganese
B
Potassium
C
Phosphorus
D
Calcium
Question 86Single Answer
Which of the following groups is present in animal cells ?
A
Mitochondria, Cell membrane, Cell wall, Cytoplasm
B
Chloroplasts, Cytoplasm, Vacuole, Nucleus
C
Nucleus, Cell membrane, Mitochondria, Cytoplasm
D
Vacuole, cell membrane, Nucleus, Mitochondria
General Computer Knowledge
Question 87Single 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 88Single 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 89Single 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 90Single 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 91Single 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 92Single 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 93Single 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 94Single 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 95Single 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 96Single 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 97Single 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 98Single 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 99Single 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 100Single 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
Fisheries Science
Question 101Single Answer
Biodrum refers to
A
Machine
B
Bio-filter
C
Ozoniser
D
Weeder
Question 102Single Answer
In a productive soil, what should be the phosphorus level
A
6-12 mg/g
B
>12 mg/g
C
3-6 mg/g
D
<2 mg/g
Question 103Single Answer
Blue colour of sea water is due to
A
Diffraction
B
Reflection
C
Scattering effect of light
D
Integration
Question 104Single Answer
If temperature, salinity increases, what will happen to dissolved oxygen of water?
A
Decrease
B
Increase
C
Remain constant
D
None of these
Question 105Single Answer
Trichodesmium causes________ which kills the fishes and other organisms
A
Blue tide
B
Green tide
C
Red tide
D
White tide
Question 106Single Answer
Chlorotetracycline is obtained from
A
Virus
B
Metazoans
C
Protozoans
D
Bacteria
Question 107Single Answer
Mother of probiotics is
A
Streptococcos
B
Lactobacillus
C
E.coli
D
None of the above
Question 108Single Answer
Which of the following constitutes the edaphic factors?
A
Water
B
Climate
C
Soil
D
All of the above
Question 109Single Answer
Which of the following soils are considered suitable for fish farms?
A
Sandy
B
Loamy
C
Clayey loam
D
Alluvial
Question 110Single Answer
Soil suitable for pond construction should have the following characteristics
A
High water retention capacity
B
Impervious to seepage
C
Nutrient rich
D
All of the above
Question 111Single Answer
If the moistened kneaded sample of the soil is rolled into a bar and then bent into an U-shape ring such that the soil remains intact or does not breaks off. It is ________ for pond construction
A
Unsuitable
B
Suitable
C
Productive
D
None of the above
Question 112Single Answer
Among the following which parameters are considered before constructing a fish farm
A
Topography of land
B
Soil type and quality
C
Source of water
D
All of the above
Question 113Single Answer
Ideal pH of soil in ponds should be
A
6.5-7.5
B
>9
C
<6
D
None of these
Question 114Single Answer
Ideal pH of water in ponds should be
A
7.5-8.5
B
>10
C
<5.5
D
3-6
Question 115Single Answer
Alkalinity in ponds is caused due to
A
Carbonates
B
Bicarbonates
C
Both (a) and (b)
D
Carbon dioxide
Question 116Single Answer
______is called the reservoir of CO2 in pond
A
Calcium
B
H+ ions
C
Carbonates
D
All of the above
Question 117Single Answer
Hardness in water is caused due to divalent cations of
A
Ca
B
Mg
C
P
D
Both (a) and (b)
Question 118Single Answer
If the diameter of the soil particle is <0.002 mm the soil will be
A
Clayey
B
Loamy
C
Sandy
D
Silty
Question 119Single Answer
Liming helps in the following
A
Neutralizes the acidic pH into a slightly alkaline level
B
Increases alkalinity and hardness
C
Has prophylactic effects
D
All of the above
Question 120Single Answer
The peripheral structure of the pond that is raised around the impoundment to contain or impound the water is called
A
Berm
B
Slope
C
Dyke
D
All of the above
Question 121Single Answer
Difference between drainable and undrainable pond lies in
A
Provision of inlet and outlet
B
Sparse sloping of pond bottom
C
Dykes
D
Both (a) and (b)
Question 122Single Answer
Ideal slope of the pond in case it is built with clayey soil is
A
2:1
B
4:1
C
1:1
D
1:2
Question 123Single Answer
Transparency in ponds is measured by
A
Spectrophotometer
B
Calorimeter
C
Secchi disk
D
Flame photometer
Question 124Single Answer
D.O. in ponds is measured by the following method
A
Winkler's method
B
Argentometric method
C
Anion-cation exchange method
D
All of the above
Question 125Single Answer
Zeolite is used for
A
Increasing pH
B
Increasing alkalinity
C
Increasing transparency
D
All of the above
Question 126Single Answer
Application of gypsum in a pond corrects the
A
pH
B
Alkalinity
C
Hardness
D
Turbidity
Question 127Single Answer
Application of Dolomite corrects the
A
pH
B
Hardness
C
Alkalinity
D
All of the above
Question 128Single Answer
The liming efficiency is highest in
A
Quicklime (Cao)
B
Limestone (CaCO3)
C
Dolomite (CaMgCO3)
D
Hydrated lime (Ca(OH)2]
Question 129Single Answer
Concentration of ammonia in water beyond_____ is toxic to fish
A
1ppm
B
0.1 ppm
C
0.01 ppm
D
5 ppm
Question 130Single Answer
Concentration of H2S in the pond bottom should be
A
1 ppm
B
5 ppm
C
10 ppm
D
0 ppm
Question 131Single Answer
Both calcium and magnesium cations can be produced by
A
Quicklime
B
Dolomite
C
Limestone
D
Hydrated lime
Question 132Single Answer
Following substance can be added to bring down the pH of an alkaline soil
A
Dolomite
B
Zeolite
C
Lime
D
Ammonium sulphate
Question 133Single Answer
Following substance can be added to increase the pH of an acidic soil
A
Lime
B
Ammonium nitrate
C
Zeoloite
D
Both (a) and (b)
Question 134Single Answer
Temparature and oxygen in pond water are ______proportional
A
Directly
B
Inversely
C
Constant
D
None of the above
Question 135Single Answer
Which is called as the mother of probiotics?
A
Nitrosomonas
B
Latic acid bacteria
C
Nitrobactor
D
Streptococcus
Question 136Single Answer
The common marine blue green algae responsible for causing red tide is
A
Spirulina sp.
B
Nostoc sp.
C
Trichodesmium sp.
D
Microcystis sp.
Question 137Single Answer
Which of the following is a bottom soil sampler?
A
Casell bottle
B
Eckman grab
C
Van dorn sampler
D
None
Question 138Single Answer
Phenomenon of biomagnification is shown by
A
Heavy metals
B
Domestic sewage
C
Distillary waste
D
None of these
Question 139Single Answer
The elevation of water level during tides, from mean sea level is called
A
Tidal difference
B
Tidal interval
C
Tidal amplitude
D
Tide value
Question 140Single Answer
Formation of algal blooms in ponds due to over-fertilisation is an example of _______pollution
A
Physical
B
Chemical
C
Biological
D
None
Question 141Single Answer
Following is an example of chemical pollution
A
Construction of dams and barrages.
B
Eutrophication
C
Oil spillage
D
Disease outbreak
Question 142Single Answer
Sewage is generally rich in
A
Nitrogen, Phosphorus
B
Ammonia
C
Carbon dioxide
D
All of the above
Question 143Single Answer
Sewage contains_____ water
A
30 per cent
B
50-60 per cent
C
85-90 per cent
D
99 per cent
Question 144Single Answer
Following is a disease causing pathogen related to humans, often found in Sewage
A
Aeromonas
B
Pseudomonas
C
Faecal streptococci
D
Desulphovibrio
Question 145Single Answer
With increasing organic carbon content in the pond bottom, B.O.D. of the pond_________
A
Remains constant
B
Decreases
C
Increases
D
Becomes zero
Question 146Single Answer
Leaves and twigs falling on the pond surface contribute as ______in due course of time.
A
Phytoplankton
B
Zooplankton
C
Periphyton
D
Detritus
Question 147Single Answer
The process by which organic matter in the pond bottom decays and
decomposes to release essential nutrients into the pond environment is called
A
Nutrient stratification
B
Nutrient recycling
C
Nutrient formation
D
Eutrophication
Question 148Single Answer
Red tides are caused by
A
Gymnodium sp.
B
Turbinellaria sp.
C
Vorticella sp.
D
Seaweeds
Question 149Single Answer
Following is an organo-phosphate pesticide
A
Calcium hypochlorite
B
Copper sulphate pentahydrate
C
Ammonium phosphate
D
Malathion
Question 150Single Answer
In a sewage treatment plant, use of duckweeds in oxidation ponds to absorb the excess of nutrients is an example of
A
Bioremediation
B
Phytoremediation
C
Eutrophication
D
Oxidation
Question 151Single Answer
Control of ammonia in ponds by culturing Azolla is an example of
A
Bioremediation
B
Phytoremediation
C
Eutrophication
D
Oxidation
Question 152Single Answer
CRZ was set up in the year
A
1991
B
1988
C
1980
D
2000
Question 153Single Answer
CRZ is divided into______ zones
A
1
B
2
C
4
D
6
Question 154Single Answer
Dissolved Oxygen level in ponds is maximum at
A
4.00 am
B
12.00 am
C
4.00 pm
D
12.00 pm
Question 155Single Answer
Tuna, mackerel, sardine are asscociated with
A
Alfatoxin
B
Scombroid poisoning
C
Food poisoning
D
Darkening
Question 156Single Answer
Bio fertilizers are represented by
A
Blue green algae
B
Rhizobium
C
Azolla
D
All of the above
Question 157Single Answer
Scombroid poisoning involves conversion of
A
Lysine to isoleucine
B
Methionine to methyl mercaptan
C
Histidine into histamine
D
Phenylalanine into alkaline phenyl compounds
Question 158Single Answer
Fish flesh is rich in
A
Proteins
B
PUFA
C
Minerals
D
All of the above
Question 159Single Answer
The important factor of soil while choosing the fertilizer is
A
C:N Ratio
B
pH
C
Nutrient level
D
All of the above
Question 160Single Answer
Building block of cellulose is
A
Amino acid
B
Glucose
C
Fructose
D
Oleic acid
Question 161Single Answer
A food chain shows
A
One possible pathway for energy
B
Many possible pathways for energy
C
The amount of energy available to a producer
D
The amount of energy available to a consumer.
Question 162Single Answer
Decomposers are important to ecosystems because they
A
Are at the highest level of the energy pyramid
B
Change simple compounds in to more complex ones
C
Make nutrients available to producers for use
D
Change light energy into chemical through photosynthesis
Question 163Single Answer
Secondary productivity is the amount of biomass produced by
A
Secondary carnivores
B
Secondary plants in communities
C
Herbivores, detrivores and carnivores
D
Detritivores
Question 164Single Answer
Seaweed Nymphea produces–
A
Alginic acid
B
Agar
C
Caragenen
D
Biotoxin
Question 165Single Answer
Protein content of fish muscle is
A
10-15 per cent
B
12-25 per cent
C
15-24 per cent
D
25-35 per cent
Question 166Single Answer
The most abundant electrolyte in the body of living organisms is
A
Potassium
B
Chloride
C
Sodium
D
All of the above
Question 167Single Answer
One molecule of glucose on complete oxidation produces
A
30 ATP mole
B
38 ATP mole
C
40 ATP mole
D
45 ATP mole
Question 168Single Answer
Greater productivity can be achieved in
A
Long food chain
B
Short food chain
C
Detritus food chain
D
None of the three
Question 169Single Answer
Fish proteins are rich in
A
Lysine
B
Valine
C
Threonine
D
All of the above
Question 170Single Answer
The gut pH in fishes during digestion is reduced by the secretion of
A
Acetic acid
B
Hydrochloric acid
C
Formic acid
D
sulphuric acid
Question 171Single Answer
Primary productivity is defined as
A
The rate at which radiant energy is stored by producers
B
The rate at which radiant energy is lost by producers
C
An activity pertaining to animals
D
Reactions taking place in soils of pond
Question 172Single Answer
Digestion of protein and lipid is efficient in
A
Carnivorous fisheries
B
Herbivorous fishes
C
Omnivorous fishes
D
Detrivorous fishes
Question 173Single Answer
The plankton is
A
Red algae
B
Floating fauna
C
A large organism
D
Passively floating or drifting flora of microorganisms
Question 174Single Answer
Catabolism of protein leads to the release of
A
Nitrite
B
Methane
C
Nitrate
D
Ammonia
Question 175Single Answer
Individuals of same species in a particular locality constitute
A
Population
B
Community
C
Flora
D
Fauna
Question 176Single Answer
Primary haemopoietic organ of fish are
A
Thymus and GALT
B
Spleen and Thymus
C
Head kidney and Thymus
D
Head kidney and spleen
Question 177Single Answer
The cell membrane of gram positive bacteria contain
A
Only peptidoglycan layer
B
Only lipopolysaccharide layer
C
Peptidoglycan and an outer membrane
D
Peptidoglycan layer and lipopolysaccharide layer
Question 178Single Answer
The correct pathway of energy flow in an ecosystem is