List of top Agricultural Engineering and Technology Questions

Which among the following equipment separate the material based on specific gravity?
A. Specific gravity separator
B. Inclined draper
C. Stone separator
D. Screen cleaner
E. Indented cylinder
Choose the correct answer from the options given below:
Process of cooling or heating of air without changing the humidity ratio is represented on a psychrometric chart by
The efficiency of a screen cleaner can be increased by
A. Reducing the screen size
B. Increasing the feed rate keeping all other factors constant
C. Uniformly spreading the material over the full width of screen
D. Keeping grain depth equal to twice that of particle size
E. Increasing the screen size
Choose the correct answer from the options given below:
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Velocity of air inside a suction hose conveying granular material will be higher than the terminal velocity of the material.
Reason R: Terminal velocity of a particle is equal to the air velocity at which a particle remains suspended in a column of air.
In light of the above statements, choose the correct answer from the options given below
Bulgur is a product of
If the lateral pressure at a certain height in a grain storage structure is calculated to be \(2000 \text{ kg}\cdot\text{m}^{-2}\); then the vertical pressure will be (given K = 0.5)
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Per cent of moisture content expressed on dry basis can never be beyond 100%.
Reason R: On dry basis, moisture content of a sample is expressed with reference to total dry matter content of the sample.
In light of the above statements, choose the correct answer from the options given below
Consider the following unit operations; arrange them in sequence as performed during wet milling of pulses
A. Conditioning
B. Mixing with red earth
C. Soaking
D. Dehusking
E. Grading
Choose the correct answer from the options given below:
Airy’s formula is used for calculation of lateral pressure in
A. CAP structure
B. Deep bins
C. Shallow bins
D. Pusa bins
E. Morai structure
Choose the correct answer from the options given below:
A multiple effect evaporator is one in which
A. Vapour from one effect is used directly as the heating medium in the next.
B. The pressure of vapour is increased and the resulting high pressure steam is re‐used as a heating medium
C. Vapour is used to heat the incoming feed liquor or condensed vapour is used to raise steam in a boiler
D. Vapours from one effect is not utilized in heating
E. Vapours are condensed and condensed liquid is further heated
Choose the correct answer from the options given below:
Decimal reduction time is the time required at a given condition to
Drying of fruit pulp can be accomplished by which of the following dryer?
A. Fluidized bed dryer
B. Drum dryer
C. Spray dryer
D. LSU dryer
E. Baffle dryer
Choose the correct answer from the options given below:
Food Safety and Standards Authority of India was established in the year
The bulk density of the produce having porosity and true density of 40% and \(50 \text{ kg}\cdot\text{m}^{-3}\) will be
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: CFTRI method of pulse milling eliminates use of edible oil.
Reason R: Alternate heating and tempering of pulses loosens the husk.
In light of the above statements, choose the correct answer from the options given below
Purpose of a compressor in a vapour compression refrigeration system include(s)
A. To compress high pressure vapour coming from evaporator
B. Conversion of liquid refrigerant to vapour
C. To compress low pressure vapour refrigerant
D. To compress liquid refrigerant
E. Maintain pressure of liquid refrigerant
Choose the correct answer from the options given below:
Consider the following statements related to harvesting knife
A. Fine knife has small bevel angle
B. Blunt knife has large edge radius
C. Sharp knife has small edge radius
D. Dull knife has small bevel angle
Choose the correct answer from the options given below:
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: In offset disc harrow the couple acting on front gang is considerably smaller than that of rear gang.
Reason R: In off-set disc harrow the rear gang is operating in loose soil compared to front gang.
In light of the above statements, choose the correct answer from the options given below
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Face-out type of arrangement in a barn saves 20% floor area as compared to face-in type.
Reason R: Manure alley can be eliminated in the face-in type of arrangement.
In light of the above statements, choose the correct answer from the options given below
Efficiency of a spiral separator can be adjusted by
A. Feed rate
B. Air flow rate
C. Slope of spiral separator
D. Vibration frequency
E. Stroke length
Choose the correct answer from the options given below:
Given below are two statements
Statement I: In solar cell electromagnetic energy is converted into electricity while as in fuel cell chemical energy is converted into electricity
Statement II: In both solar cell and fuel cell conversion efficiency is limited by externally reversible heat engine cycle
In light of the above statements, choose the most appropriate answer from the options given below
What will be power generated from an arrangement having 200 solar cells connected in series. Assuming operating voltage of each photo‐voltaic cell as 0.45 V and current output as 1.1A
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: The output gases from downdraft gasifier are relatively cleaner compared to gases from updraft gasifier
Reason R: In downdraft gasifier the products from the pyrolysis zone and drying zone pass through oxidation zone causing thermal cracking of volatiles
In light of the above statements, choose the correct answer from the options given below
Which of the following conditions are essential for noise measurement of tractors and agricultural machinery as per IS (12180) 2000?
A. The measurement should be in A- weighted sound pressure level
B. The wind velocity at the microphone position shall not exceed 5 m.s\(^{-1}\)
C. Tractor shall be unballasted
D. The background noise shall be atleast 10 dB(A) below the level measured during test
E. The testing area should not have a slope of more than 15\(^\circ\)
Choose the correct answer from the options given below:
An agricultural worker expired 150 litres of air having 16% oxygen in 5 minute duration. What is the oxygen consumption in litre per minute to perform the activity?