List of top Agricultural Engineering and Technology Questions on Soil Tillage Equipment asked in ICAR AIEEA (PG)

The soil forces acting upon a mould board plough bottom resulting from the operations of cutting, pulverising, lifting, and inverting the furrow slice are 2.2 kN, 1.0 kN, and 0.8 kN along longitudinal, transverse, and vertical directions, respectively. The coefficient of soil-metal friction in the friction phase is 0.3. What will be the estimated draft, neglecting the effects of weight of the implement and the vertical reaction?

The resultant soil thrust and radial force acting on each gang of a single acting disc harrow are 1200 N, and 600 N respectively. The resultant downward force acting on each gang is 2400 N. The perpendicular distance of the soil thrust from the gang axis is 20 cm. What is the distance between line of action of downward force and centre of the gang to get a uniform depth of cut?

An inclined blade tillage tool of 25 cm wide and 10 cm long is operating at 25 cm depth in cohesionless soil with density equal to 1.25 \(\text{g}\cdot\text{cm}^{-3}\), and angle of internal friction of 39\(^\circ\). The normal load on the tool and coefficient of soil-metal friction are 1000 N and 0.3, respectively. The soil cutting resistance per unit length of cutting edge is 25 \(\text{N}\cdot\text{mm}^{-1}\). If the tool lift angle is 30\(^\circ\), the specific draft will be [Given: \(\cos 30^\circ = 0.866\)]

The major drawbacks of conventional tillages are categorized as :
(A) Decrease of soil organic matter
(B) Decrease of soil moisture
(C) Short-term potential for soil compaction
(D) Adversely affect the soil structure
Choose the correct answer from the options given below:

A 2-bottom, 50 cm MB plough is being operated at a speed of 5 km. h\(^{-1}\). If time lost in turning is 8 per cent, how many hours will be required to plough 23 ha of land ?

Match List-I with List-II.

List-I (Farm Equipment)	List-II (Action)
(A) Turn Wrest plough	(I) Moves all the soil towards same side
(B) Disc plough	(II) Moves the soil in opposite directions
(C) Disc harrow	(III) Used for shallow ploughing
(D) Vertical disc plough	(IV) Has an arrangement that the plough bottom can be changed from right hand to left hand by rotating it approximately 180 degrees
(E) Off-set disc harrow	(V) Well suited for working under low hanging branches in orchards

Choose the correct answer from the options given below.

Match List-I with List-II.

List-I (Field operation)	List-II (Equipment used)
(A) Intercultural operation	(I) Rotavator
(B) Deep ploughing	(II) Cultivator
(C) Soil pulverization	(III) Sub-soiler
(D) Conservation tillage	(IV) Strip-till drill
(E) Soil Inversion	(V) MB plough

Choose the correct answer from the options given below.