List of top Agricultural Engineering and Technology Questions on Tractor Ballasting and Traction asked in ICAR AIEEA (PG)

A 2WD tractor with a total weight of 20 kN has a static weight distribution of 25% and 75% at the front and rear axles, respectively. When the tractor is operated on a level ground, the maximum tractive force developed is 10 kN. If external weight of 5 kN is added to the rear axle, neglecting weight transfer, the change in maximum tractive force in kN is

Which of the following is an indicator of efficiency with which the traction device transforms the torque acting on axle into linear drawbar pull ?

Consider the following statements for belt drive use in agricultural machinery
A. V-belts are employed in agricultural machinery applications in which it is not necessary to maintain exact speed ratios
B. V-belts are not suitable for heavy loads at low speeds
C. If the ratio between the tight side and slack side tension is too great, belt slippage will be excessive
D. Agricultural V-belts are designated based on Standard established by Rubber Manufacturers Association (RMA)
E. Belts designed specially for variable speed drives are narrower that conventional V-belts in relation to their thickness.
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: Operating with restrained links rather than free links provides greater tractive ability
Reason R: Operating with restrained links increases the vertical load on the tractor rear wheels.
In light of the above statements, choose the correct answer from the options given below

Which of the following are bulk flow seed metering systems?
A. Flutted roller
B. Inclined plate planter
C. Pneumatic seed metering
D. Internal double run type
E. Stationary opening with agitator
Choose the correct answer from the options given below:

Match List I with List II

List I & List II
A. Tractive efficiency & I. Ratio of net pull produced to dynamic normal load
B. Net traction coefficient & II. Ratio of output power to input power
C. Motion resistance ratio & III. Rolling resistance force divided by normal load
D. Gross traction & IV. Force that cannot be measured but calculated from driving torque and effective radius

Choose the correct answer from the options given below:

For towed wheel and self-propelled wheel, which of the following conditions hold good:
A. For towed wheel axle torque is zero
B. For self-propelled wheel axle torque is zero
C. For towed wheel pull is zero
D. For self-propelled wheel pull is zero
E. For towed wheel and self-propelled wheel neither axle torque nor pull is zero
Choose the correct answer from the options given below:

For towed wheel and self-propelled wheel, which of the following conditions hold good:
A. For towed wheel axle torque is zero
B. For self-propelled wheel axle torque is zero
C. For towed wheel pull is zero
D. For self-propelled wheel pull is zero
E. For towed wheel and self-propelled wheel neither axle torque nor pull is zero
Choose the correct answer from the options given below:

Match List I with List II

List I & List II
A. Tractive efficiency & I. Ratio of net pull produced to dynamic normal load
B. Net traction coefficient & II. Ratio of output power to input power
C. Motion resistance ratio & III. Rolling resistance force divided by normal load
D. Gross traction & IV. Force that cannot be measured but calculated from driving torque and effective radius

Choose the correct answer from the options given below:

The tractor tyre of:
A. Radial-ply type improves coefficient of traction
B. Radial-ply type improves tractive efficiency
C. Radial-ply type is advantageous for soft soil
D. Bias-ply type works good on highways
E. Bias-ply type is suitable for soft soil
Choose the correct answer from the options given below:

The ratio of the net pull produced to the dynamic normal load on the traction device is known as:

Differential lock in a tractor is used to improve

The relation between Tractive Efficiency (TE), Net Traction Coefficient (\(\mu\)), Gross Traction Coefficient (\(\mu_g\)) and Slip (\(s\)) is