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Subjects : Agriculture Science

Question Bank Bihar BHO Exam Paper 2 (Agriculture Science) - English
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Agriculture Science

Question 1Single Answer
In food, starch is detected by its :           
  1. A
    Granular form          
  2. B
    Energy reserve
  3. C
    White appearance       
  4. D
    Blue reaction with iodine
Question 2Single Answer
Cut surfaces of fruits often becomes dark due to :             
  1. A
    Dirty knife       
  2. B
    Oxidetion of iron containing chemicals                
  3. C
    Dissolution of iron of the knife            
  4. D
    Oxidation of tannic acid assisted by traces of iron form knife            
Question 3Single Answer
Kranz anatomy is typical of :        
  1. A
    C4 plants          
  2. B
    C3 plants       
  3. C
    C2 plants       
  4. D
    CAM plants     
Question 4Single Answer
Bakanae disease in rice plants (Oryza sativa ) is caused by :                 
  1. A
    Naphthalene acetic acid (NAA)                 
  2. B
    2 , 4-Dichlorophenoxy acetic acid (2,4-D)     
  3. C
    Gibberellic  acid (GA)         
  4. D
    Indole Acetic acid (IAA)      
Question 5Single Answer
A monosomic organism can best be represented as :                     
  1. A
    2n-1
  2. B
    2n+2
  3. C
    n+l
  4. D
    2n-2
Question 6Single Answer
Chemicals used for transmitting messages to members of same species are :                 
  1. A
    Allochemics
  2. B
    Kairomones
  3. C
    Auxins
  4. D
    Pheromones
Question 7Single Answer
Tomato and potato belong to :         
  1. A
    North America      
  2. B
    South America            
  3. C
    Asia minor
  4. D
    Ethiopia
Question 8Single Answer
At which part of plant potatoes are borne ?             
  1. A
    Primary root         
  2. B
    Stolons
  3. C
    Lateral roots         
  4. D
    Adventitious roots
Question 9Single Answer
Wild saccharum sponkaneum was used for introducing resistance to :  
  1. A
    Smut disease
  2. B
    Red rot disease
  3. C
    Loose smut disease
  4. D
    All of these
Question 10Single Answer
Which of the following cultivar of rice was discovered by Dr. G.S. khush and is most widely grown in the world?                    
  1. A
    IR-26.            
  2. B
    IR-36.            
  3. C
    Pusa-24.           
  4. D
    Ratna.      
Question 11Single Answer
Addition of which of the following is useful in rhizobial nitrogen fixation ?     
  1. A
    Phosphate       
  2. B
    Magnesium
  3. C
    Iron       
  4. D
    Potassium
Question 12Single Answer
Agriculture is considered to be the most important sector in india because :    
  1. A
    Agriculture provides the requisite foodstuff for the masses    
  2. B
    Agricultural development has nothing to do with education           
  3. C
    Agricultural sector contributes about half of the national income           
  4. D
    Most of the industries are directly dependent on agriculture
Question 13Single Answer
Which of the following measures have been taken to modernise Indian agriculture ?                                                      
  1. A
    Area under irrigation increased.
  2. B
    High yielding variety seeds.       
  3. C
    Credit and facilities to villagers.         
  4. D
    All of these.       
Question 14Single Answer
Assertion(A) : The growth rate in agriculture is small even after proper investment and planning                
Reason (R): Land reforms have not been satisfactorily carried out .            
  1. A
    A and R are true but R is not the correct explanation of A.                     
  2. B
    A and  R are true and R is the correct explanation of A.            
  3. C
    A is true but R is false.              
  4. D
    Both A and R are false. 
Question 15Single Answer
What is the "tenurial system"?                             
  1. A
    It points our the method of land use      
  2. B
    It identifies the ownership of land          
  3. C
    It identifies  the ownership of land and the relationship of the land owner with the actual cultivator.           
  4. D
    It identifies the size of land and how it is put to use 
Question 16Single Answer
Sub-divison and fragmentation of land resulted in :            
  1. A
    enormous wastage of land owing to boundaries            
  2. B
    uneconomic holdings      
  3. C
    destruction of enterprise 
  4. D
    All of the above       
Question 17Single Answer
Which of the following kinds of budgetings should be followed while planning a farm?       
  1. A
    Enterprise budgeting  
  2. B
    Partial budgeting        
  3. C
    Full budgeting 
  4. D
    Any of these          
Question 18Single Answer
Stock - farming refers to :     
  1. A
    accent on agricultural production to build a buffer stock 
  2. B
    co-operative farming  
  3. C
    farming  concentrating On the rearing of cattle and sheep            
  4. D
    Large scale capital intensive commercial farming       
Question 19Single Answer
Terrace is practised mostly :
  1. A
    In urban areas.           
  2. B
    On slopes of mountains.            
  3. C
    On tops of hills.
  4. D
    In undulating tracts.      
Question 20Single Answer
Large - scale intensive agriculture involves agricultural operations carried on :              
  1. A
    Near equator              
  2. B
    In densely populated areas.                 
  3. C
    On hilly tract.             
  4. D
    None of the above.      
Question 21Single Answer
What is the difference between stock and supply
  1. A
    Stock is a flow concept whereas supply is no
  2. B
    Supply is a flow concept and stock is not a flow.com
  3. C
    Both supply and stock are flow concepts
  4. D
    None of the above
Question 22Single Answer
What is the shape of supply curve
  1. A
    Convex to x axis or upward sloping
  2. B
    Downward sloping
  3. C
    Concave
  4. D
    Can be any of the
Question 23Single Answer
What is the relation between individual and market supply curve
  1. A
    Market supply curve is the horizontal summation of individual supply curve
  2. B
    Market demand curve is the vertical summation of individual supply curve
  3. C
    Individual supply curve is the horizontal summation of market demand curve
  4. D
    Individual supply curve is the vertical summation of market demand curve
Question 24Single Answer
Contraction and extension of supply means
  1. A
    Increase in supply due to increased price and decrease in supply due
    decreased price
  2. B
    Decrease in supply due to increased price increase in supply due to decreased
    price
  3. C
    Both a and b
  4. D
    None of the above
Question 25Single Answer
More supply at same price and same supply at lower price means
  1. A
    Increased supply
  2. B
    Decreased supply
  3. C
    Constant supply
  4. D
    None of the above
Question 26Single Answer
Decrease in supply means
  1. A
    Less supply at same price and same supply at higher price
  2. B
    Higher supply at same price and same supply at decreased price
  3. C
    Both a and b
  4. D
    None of the above
Question 27Single Answer
Elasticity of supply is given by
  1. A
    % A quantity supplied / %A in demand
  2. B
    % A quantity demanded / % A in supply
  3. C
    % 4 in supply / % 4 in price
  4. D
    None of the above
Question 28Single Answer
Pick the incorrect one out in terms of (es= elasticity of supply)
A) Perfectly inelastic      - es = 0
B) Perfectly elastic         - es = 0
C) Inelastic                     - es <1
D) Elastic                        - es = 1
E) Unitary elastic            - es = 1
  1. A
    Only A
  2. B
    Only B
  3. C
    Only C
  4. D
    None of the above
Question 29Single Answer
Market is in equilibrium when
 
  1. A
    Quantity demanded = quantity supplied
  2. B
    Quantity demanded > quantity supplied
  3. C
    Quantity demanded < quantity supplied
  4. D
    All of the above
Question 30Single Answer
Which one of the following is not correctly matched
  1. A
    Surplus when quantity supplied > quantity demanded
  2. B
    Deficit when quantity supplied < quantity demanded
  3. C
    Elastic supply curve has elasticity > 1
  4. D
    None of the above
Question 31Single Answer
An out-of-school system of education for rural people:
  1. A
    Extension
  2. B
    Management
  3. C
    Participation
  4. D
    Communication
Question 32Single Answer
Extension literally means:
  1. A
    Stretching out
  2. B
    Talking with
  3. C
    Deciding for
  4. D
    Thinking about
Question 33Single Answer
The term ‘Extension’ have originated in:
  1. A
    Latin
  2. B
    Persian
  3. C
    Greek
  4. D
    Sanskrit
Question 34Single Answer
The Latin roots for the word ‘extension’:
  1. A
    ex and tensio
  2. B
    ex and tension
  3. C
    ex and luceo
  4. D
    ex and termo
Question 35Single Answer
The term “University Extension” was first used in:
  1. A
    1866
  2. B
    1972
  3. C
    1901
  4. D
    1921
Question 36Single Answer
The person considered as father of extension:
  1. A
    James Stewatt
  2. B
    Seaman A Knapp
  3. C
    Edgar Dale
  4. D
    Paul Leagans
Question 37Single Answer
The term “Extension Education” was first coined in:
  1. A
    USA
  2. B
    UK
  3. C
    Netherlands
  4. D
    India
Question 38Single Answer
The first use of the word extension was done by:
  1. A
    Vorhees
  2. B
    Seaman A Knapp
  3. C
    Edgar Dale
  4. D
    Paul Leagans
Question 39Single Answer
The person considered as father of extension in india:
  1. A
    Adivi Reddy
  2. B
    O P Dahama
  3. C
    K N Singh
  4. D
    J B Chitambar
Question 40Single Answer
Extension can be considered to have developed from:
  1. A
    Sociology
  2. B
    Psychology
  3. C
    Education
  4. D
    Philosophy
Question 41Single Answer
According to UPOV Act 1978, the period of protection for field crops is:
  1. A
    10 Years
  2. B
    12 Years
  3. C
    15 Years
  4. D
    18 Years
Question 42Single Answer
Plant variety Protection Act was initially signed into law in the country
  1. A
    Russia
  2. B
    USA
  3. C
    Japan
  4. D
    Canada
Question 43Single Answer
The genetic purity of seed is examined by:
  1. A
    Viability test 
  2. B
    Seed health test
  3. C
    Grow out test 
  4. D
    Moisture test
Question 44Single Answer
Cuscuta is an objectionable weed in:
  1. A
    Lettuce
  2. B
    Cucurbits
  3. C
    Lucerne
  4. D
    Mustard
Question 45Single Answer
In sunflower, production of foundation seed requires an isolation distance of:
  1. A
    200 metres
  2. B
    100 metres
  3. C
    400 metres
  4. D
    800 metres
Question 46Single Answer
Froduction of breeder seed in cotton requires an isolation distance of:
  1. A
    20 metres
  2. B
    30 metres
  3. C
    50 metres
  4. D
    75 metres
Question 47Single Answer
Certification is not required for:
  1. A
    Breeder seed 
  2. B
    Foundation seed
  3. C
    Certified seed 
  4. D
    All of these
Question 48Single Answer
Which of the following are water soluble proteins ?
  1. A
    Albumins 
  2. B
    Globulins
  3. C
    Prolamins 
  4. D
    Glutenins
Question 49Single Answer
PPB is known as:
  1. A
    Collaborative Plant Breeding (CPB)
  2. B
    Farmers Participatory Breeding (FPB)
  3. C
    Participatory Crop Improvement
  4. D
    All of these
Question 50Single Answer
Which of the following species of Brassicn is tetraploid?
  1. A
    B. nigra  
  2. B
    B. oleracea
  3. C
    B. juncea 
  4. D
    B. campestris
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