CSS Agriculture Questions & Answers - Part-4 - Set 36

1)   Natural air-drying needs dehumidification if the atmospheric humidity exceeds:

a. 30%
b. 50%
c. 70%
d. 80%
Answer  Explanation 

ANSWER: 70%

Explanation:
No explanation is available for this question!


2)   Natural airflow takes place in the dryer due to variation in:

a. Air moisture
b. Air temperature
c. Air-pressure
d. Volume of air
Answer  Explanation 

ANSWER: Volume of air

Explanation:
No explanation is available for this question!


3)   Air temperature in solar drying in comparison to sun drying is:

a. Equal
b. Low
c. High
d. None of these
Answer  Explanation 

ANSWER: High

Explanation:
No explanation is available for this question!


4)   Solar energy reaching per square metre of the earth atmosphere is called:

a. Solar coefficient
b. Solar constant
c. Solar radiation
d. All are correct
Answer  Explanation 

ANSWER: Solar constant

Explanation:
No explanation is available for this question!


5)   A moisture content of threshed paddy which is sun dried on floor is upto:

a. 8-10%
b. 10-11%
c. 13-14%
d. 15-16%
Answer  Explanation 

ANSWER: 13-14%

Explanation:
No explanation is available for this question!


6)   The operational life of a pair of rubber rolls is estimated at:

a. 80 tonne
b. 90 tonnes
c. 100 tonne
d. 120 tonnes
Answer  Explanation 

ANSWER: 100 tonne

Explanation:
No explanation is available for this question!


7)   Hardness of rice endosperm ranges from:

a. 5 to 7 kg/mm2
b. 8.5 to 10 kg/mm2
c. 11.5 to 14.5 kg/mm2
d. 12.5 to 16.5 kg/mm2
Answer  Explanation 

ANSWER: 11.5 to 14.5 kg/mm2

Explanation:
No explanation is available for this question!


8)   Hot pulses are tempered in the tempering bin after each pass for:

a. 4 hours
b. 6 hours
c. 48 hours
d. 10 hours
Answer  Explanation 

ANSWER: 6 hours

Explanation:
No explanation is available for this question!


9)   Recovery of dhal in each pass is reduced by:

a. 0.5-0.7%
b. 0.8-1.1%
c. 11.5-2.0%
d. 1.0-3.5%
Answer  Explanation 

ANSWER: 11.5-2.0%

Explanation:
No explanation is available for this question!


10)   In dry milling of pulses with seed oil treatment, oils is used at a rate of:

a. 0.5 to 1.5 kg/tonne
b. 1.5 to 2.5 kg/tonne
c. 2.5 to 3.5 kg/tonne
d. 3.5 to 1.5 kg/tonne
Answer  Explanation 

ANSWER: 1.5 to 2.5 kg/tonne

Explanation:
No explanation is available for this question!


11)   In dry milling the percentage of pulse dehusked in one pass or single operation is:

a. 40%
b. 50%
c. 60%
d. 70%
Answer  Explanation 

ANSWER: 50%

Explanation:
No explanation is available for this question!


12)   In bullock driven wooden ghani, the percent oil loss (left in cake) is:

a. 7-8%
b. 10-11%
c. 13-15%
d. 16-18%
Answer  Explanation 

ANSWER: 13-15%

Explanation:
No explanation is available for this question!


13)   In power driven iron ghani, the percentage oil loss (left in cake) is:

a. 4.60%
b. 7.5-8.5%
c. 10.5-11.5%
d. 12.5-13.5%
Answer  Explanation 

ANSWER: 10.5-11.5%

Explanation:
No explanation is available for this question!


14)   In hydraulic press ghani, the percent oil loss (left in cake) is:

a. 3-6%
b. 7-8%
c. 8-10%
d. 10-11%
Answer  Explanation 

ANSWER: 7-8%

Explanation:
No explanation is available for this question!


15)   The storage life of non-perishable fruits exceed by:

a. 8 weeks
b. 10 weeks
c. 12 weeks
d. 14 weeks
Answer  Explanation 

ANSWER: 12 weeks

Explanation:
No explanation is available for this question!


16)   During processing of fruits and vegetables, transportation losses occurs in as:

a. 15%
b. 20%
c. 25%
d. 30%
Answer  Explanation 

ANSWER: 30%

Explanation:
No explanation is available for this question!


17)   The total depth of water application to the crop is called:

a. Duty
b. Delta
c. Base
d. None of these
Answer  Explanation 

ANSWER: Delta

Explanation:
No explanation is available for this question!


18)   A period in days for which water applied to a crop is:

a. Duty
b. Delta
c. Base
d. None of these
Answer  Explanation 

ANSWER: Base

Explanation:
No explanation is available for this question!


19)   The actual area irrigated in a year from outlet is:

a. Irrigation period
b. Intensity of irrigation
c. Irrigation frequency
d. None of these
Answer  Explanation 

ANSWER: Intensity of irrigation

Explanation:
No explanation is available for this question!


20)   The upper strata of the earth where the openings are partially filled with water is:

a. Zone of fracture
b. Zone of aeration
c. Zone of saturation
d. None of these
Answer  Explanation 

ANSWER: Zone of aeration

Explanation:
No explanation is available for this question!


21)   An aquifer is a permeable bed only partly filled with water and overlying a relatively impervious layer is:

a. Pheratic aquifer
b. Water-table aquifer
c. None artesian aquifer
d. All of these
Answer  Explanation 

ANSWER: All of these

Explanation:
No explanation is available for this question!


22)   The upper strata of the earth where the openings are completely filled with water are:

a. Zone of fracture
b. Zone of aeration
c. Zone of saturation
d. None of these
Answer  Explanation 

ANSWER: Zone of saturation

Explanation:
No explanation is available for this question!


23)   When a well is dug in water table aquifer the static water level in the well stands at:

a. Upper elevation of water table
b. Same elevation of term
c. Lower elevation of water table
d. None of these
Answer  Explanation 

ANSWER: Upper elevation of water table

Explanation:
No explanation is available for this question!


24)   A aquifer found between impermeable layer is:

a. Non-artsian aquifer
b. Artesian aquifer
c. Unconfined aquifer
d. Free aquifer
Answer  Explanation 

ANSWER: Artesian aquifer

Explanation:
No explanation is available for this question!


25)   The pressure of water in confined aquifer is:

a. Above atmospheric pressure
b. At atmospheric pressure
c. Below atmospheric pressure
d. All are correct
Answer  Explanation 

ANSWER: Above atmospheric pressure

Explanation:
No explanation is available for this question!


26)   In artesian aquifer the elevation to which water level rises in wall is:

a. Water-table level
b. Piezometric level
c. Piezometric head
d. Piezometric surface
Answer  Explanation 

ANSWER: Piezometric surface

Explanation:
No explanation is available for this question!


27)   A completely saturated aquifer is:

a. Free aquifer
b. Artesian aquifer
c. Leaky aquifer
d. Non-artesian aquifer
Answer  Explanation 

ANSWER: Leaky aquifer

Explanation:
No explanation is available for this question!


28)   In artesian aquifer, te imaginary surface representing artesian pressure is:

a. Water table pressure
b. Piezometric level
c. Peizometric head
d. Piezometric surface
Answer  Explanation 

ANSWER: Piezometric surface

Explanation:
No explanation is available for this question!


29)   In semi-confined aquifer, when there is time lag between lowering of two water levels is:

a. Semi-confined aquifer with prompt yield
b. Semi-confined aquifer with delayed yield
c. Both (a) and (b)
d. None of these
Answer  Explanation 

ANSWER: Semi-confined aquifer with delayed yield

Explanation:
No explanation is available for this question!


30)   A perched water-table is a special case of:

a. Artesian aquifer
b. Non-artesian aquifer
c. Confined aquifer
d. Non-confined aquifer
Answer  Explanation 

ANSWER: Confined aquifer

Explanation:
No explanation is available for this question!


31)   The properties of aquifer may be expressed in terms of:

a. Hydraulic conductivity
b. Transmissibility
c. Specific yield
d. All are correct
Answer  Explanation 

ANSWER: All are correct

Explanation:
No explanation is available for this question!


32)   In semi-confined aquifer with prompt yield, the pheratic level is lowered when:

a. Simultaneously lowered with piezometric level
b. Simultaneously increased with piezometric level
c. No change in piezometric level
d. None of these
Answer  Explanation 

ANSWER: Simultaneously lowered with piezometric level

Explanation:
No explanation is available for this question!


33)   Leakage factor is the property of:

a. Confined aquifer
b. Semi-confined aquifer
c. Unconfined aquifer
d. All are correct
Answer  Explanation 

ANSWER: Semi-confined aquifer

Explanation:
No explanation is available for this question!


34)   Specific yield is the property of:

a. Confined aquifer
b. Semi confined aquifer
c. Unconfined aquifer
d. All are correct
Answer  Explanation 

ANSWER: Unconfined aquifer

Explanation:
No explanation is available for this question!


35)   The value of leakage factor for semi or pervious layer ranges between:

a. 100 and 1000 min
b. 100 and 10000 min
c. 100 and 100000 min
d. 100 and 1000000 min
Answer  Explanation 

ANSWER: 100 and 1000000 min

Explanation:
No explanation is available for this question!


36)   The water level stands in the well before pumping is:

a. Static water level
b. Pumping water level
c. Piezometric level
d. Draw down
Answer  Explanation 

ANSWER: Static water level

Explanation:
No explanation is available for this question!


37)   The difference between static water level and pumping water level is known as:

a. Drawdown
b. Well yield
c. Specfic capacity
d. All are correct
Answer  Explanation 

ANSWER: Drawdown

Explanation:
No explanation is available for this question!


38)   The volume of water discharged per unit time is:

a. Drawdown
b. Well yield
c. Specific capacity
d. All are correct
Answer  Explanation 

ANSWER: Well yield

Explanation:
No explanation is available for this question!


39)   Arch median screw is:

a. Low head water lift
b. Medium head water lift
c. High head water lift
d. All are correct
Answer  Explanation 

ANSWER: Low head water lift

Explanation:
No explanation is available for this question!


40)   Specific speed of pump expresses relationship between:

a. Pump speed
b. Pump discharge
c. Total head
d. All are correct
Answer  Explanation 

ANSWER: All are correct

Explanation:
No explanation is available for this question!


41)   A 24-litre capacity bucket is filled in 12 seconds by the discharge of Persian wheel, then the rate of flow is:

a. 2 lit/min
b. 20 lit/min
c. 120 lit/min
d. None of these
Answer  Explanation 

ANSWER: 120 lit/min

Explanation:
No explanation is available for this question!


42)   A Persian wheel with an average discharge of 230 lit/min irrigates one-hectare wheat crop in 50 hours. The average depth of irrigation is:

a. 6.9 cm
b. 7.2 cm
c. 9.0 cm
d. 9.6 cm
Answer  Explanation 

ANSWER: 6.9 cm

Explanation:
No explanation is available for this question!


43)   The device used for measuring discharge of irrigation channel, well or canal outlet is called:

a. Weir
b. Notch
c. Meter gate
d. All are correct
Answer  Explanation 

ANSWER: All are correct

Explanation:
No explanation is available for this question!


44)   A sheet of water, which overflows a weir, is:

a. Head
b. Nape
c. Both (a) and (b)
d. None of these
Answer  Explanation 

ANSWER: Nape

Explanation:
No explanation is available for this question!


45)   The basic formula to calculate the discharge through weir is:

a. Q = CLH
b. Q = CLHm
c. Q = LHm
d. None of these
Answer  Explanation 

ANSWER: Q = CLHm

Explanation:
No explanation is available for this question!


46)   A contracted trapezoidal weir in which each side of the notch has a slope of horizontal 1 to 4 vertical is:

a. Trapezoidal weir
b. Cipoletti weir
c. Rectangular weir
d. V-notch
Answer  Explanation 

ANSWER: Cipoletti weir

Explanation:
No explanation is available for this question!


47)   A cipoletti weir has a breadth of 60 cm at its crest and head of water flowing over the crest is 30 cm, the discharge of weir will be:

a. 180 lit/sec
b. 180 lit/min
c. 186 lit/sec
d. 183 lit/min
Answer  Explanation 

ANSWER: 186 lit/sec

Explanation:
No explanation is available for this question!


48)   An open channel flow in which flow characteristic at any poi8nt do not change with:

a. Steady flow
b. Unsteady flow
c. Uniform flow
d. Non-uniform flow
Answer  Explanation 

ANSWER: Steady flow

Explanation:
No explanation is available for this question!


49)   The common conservation measures for agricultural lands are:

a. Bunding and broad based terracing
b. Bench terracing
c. Contour trenching
d. All are correct
Answer  Explanation 

ANSWER: Bunding and broad based terracing

Explanation:
No explanation is available for this question!


50)   The velocity of flow in open channel is determined by:

a. Darcy's formula
b. Manning's formula
c. Both (a) and (b)
d. None of these
Answer  Explanation 

ANSWER: Darcy's formula

Explanation:
No explanation is available for this question!


51)   A brick or stone masonry linings are recommended for lining watercourses from channels where discharge is:

a. Less than 30 lit/sec
b. More than 30 lit/min
c. Only 30 lit/sec
d. None of these
Answer  Explanation 

ANSWER: Less than 30 lit/sec

Explanation:
No explanation is available for this question!


52)   A structure used to carry out irrigation water across the stream, canals, gullies and other natural depression is:

a. Weir
b. Notch
c. Flume
d. Gate
Answer  Explanation 

ANSWER: Flume

Explanation:
No explanation is available for this question!


53)   A recommended safe limit of land slope for efficient irrigation in heavy soil is:

a. 0.05 to 0.25 %
b. 0.20 to 0.40%
c. 0.25 to 0.65%
d. All are correct
Answer  Explanation 

ANSWER: 0.05 to 0.25 %

Explanation:
No explanation is available for this question!


54)   The relative proportion of sand, clay and silt determines:

a. Soil structure
b. Soil texture
c. Soil mass
d. Soil volume
Answer  Explanation 

ANSWER: Soil texture

Explanation:
No explanation is available for this question!


55)   The particle size of clay according to USWA is:

a. 0.002 mm
b. <0.002 mm
c. 0.002 to 0.05 mm
d. 0.5 to 1.0 mm
Answer  Explanation 

ANSWER: <0.002 mm

Explanation:
No explanation is available for this question!


56)   The particle size of silt according to USWA is:

a. >0.002 mm
b. <0.002 mm
c. 0.002 to 0.05 mm
d. 0.25 to 0.5 mm
Answer  Explanation 

ANSWER: 0.002 to 0.05 mm

Explanation:
No explanation is available for this question!


57)   To particle size of gravel according to USWA is:

a. 0.5 to 1 mm
b. 1 to 2 mm
c. <2 mm
d. >2 mm
Answer  Explanation 

ANSWER: >2 mm

Explanation:
No explanation is available for this question!


58)   The porosity index of relative volume of pores is influenced by:

a. Texture
b. Structure
c. Both (a) and (b)
d. None of these
Answer  Explanation 

ANSWER: Both (a) and (b)

Explanation:
No explanation is available for this question!


59)   In case of porosity the volume of pores may change:

a. With volume change of voids
b. With volume change of solids
c. Without volume change of solids
d. All are correct
Answer  Explanation 

ANSWER: Without volume change of solids

Explanation:
No explanation is available for this question!


60)   The porosity of sandy soil usually ranges from:

a. 30 to 35%
b. 35 to 50%
c. 40 to 60%
d. 50 to 60%
Answer  Explanation 

ANSWER: 35 to 50%

Explanation:
No explanation is available for this question!