List of top Questions asked in ICAR AIEEA (PG)- 2023

Which of the following are thermochemical conversion processes for biomass
(A). Gasification
(B). Anaerobic digestion
(C). Fermentation
(D). Liquification
Choose the correct answer from the options given below:

Which of the following sequence best indicates the steps of anaerobic digestion
(A). Hydrolysis
(B). Methanogenesis
(C). Acetogenesis
(D). Acidogenesis
Choose the correct answer from the options given below:

Which types of knife sections are used in a standard cutter bar
(A). Top serrated type
(B). Under serrated type
(C). Smooth edge type
Choose the correct answer from the options given below:

A farmer cultivates his land with a country plough of size 15 cm. How many km the farmer has to walk for ploughing one ha of land

A tractor can be considered as spring mass damper system with

Given below are two statements:
Statement (I): For the same compression ratio and same heat input, Diesel cycle is more efficient than Otto cycle.
Statement (II): The peak pressure in the cylinder of diesel engine are much higher than in a spark ignition engine.
In light of the above statements, choose the most appropriate answer from the options given below:

Given below are two statements:
Statement (I): The type of valve most commonly found in internal combustion engines is the poppet valve.
Statement (II): The common valve arrangement found on tractor engines is overhead.
In light of the above statements, choose the most appropriate answer from the options given below:

In which of the following engines it is possible to remove all of the imbalance by crankshaft counterweights
(A). Single cylinder
(B). Two cylinder
(C). Three cylinder
(D). Four cylinder
(E). Six cylinder
Choose the correct answer from the options given below:

Which of the following are true in case of puddling
(A). Puddling increases the soil strength of puddled layer.
(B). Main purpose of puddling is to create an impermeable layer in the soil.
(C). Higher clay content facilitates puddling.
(D). Puddling is practiced in transplanted rice and not in direct seeded rice.
Choose the correct answer from the options given below:

Accelerometer is used for measurement of

36. Flow rate for a particular nozzle is

38. The metering mechanism most commonly used for drilling of wheat is

39. Which of the following results in increased seed damage during mechanical threshing
(A). Reduced concave clearance
(B). Increased peripheral speed of cylinder
(C). Increased seed moisture content
(D). Reduced threshing cylinder diameter
(E). Increased feed rate
Choose the correct answer from the options given below:

Weight transfer in a tractor implement system is caused by

37. Which of the following represents proper knife registration

40. If piston displacement is deducted from the total volume of cylinder, the remaining volume is known as

33. Which of the following metering devices can be used for metering of single seeds
(A). Inclined plate
(B). Edge drop
(C). Vertical rotor
(D). Fluted roller
(E). Internal double run type
Choose the correct answer from the options given below:

31. The harvesting operation of which of the following crop is least mechanized in India

30. The linear variable differential transformer (LVDT) is an accurate and reliable transducer for measurement of

35. Which of the following nozzle is most suitable for spraying insecticides and fungicides

32. Which of the following is the combination of principles of the regular disc plough and disc harrow and is used for shallow working in the soil

29. Coloumb and Rankine theories for calculating simple earth pressures are based on which of the following assumptions:
(A). Soil is cohesionless
(B). Soil is isotropic
(C). Soil is homogeneous
(D). Soil is semi-infinite
Choose the correct answer from the options given below:

27. Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : Direct shear test is not of much use for fine grained soils where drainage conditions play an important role influencing the shear strength.
Reason (R) : In direct shear test drainage conditions can not be controlled and pore water pressure can not be measured.
In light of the above statements, choose the correct answer from the options given below.

28. Atterberg limits of a soil represent which of the following property at critical stages of soil behaviour