Neco 2020 Agricultural Science Question 3

Practice objective / multiple choice question 3 from the 2020 Neco Agricultural Science examination.

Neco 2020 Agricultural Science Objective / Multiple Choice Medium Difficulty
Question 3 NECO • 2020 • AGRICULTURAL_SCIENCE • objective

A tractor has an engine power of \(50\) kW and a transmission efficiency of \(85\)% . It is used to pull a 2‑bottom moldboard plough, each bottom having a width of \(0.25\) m. The soil draft per metre width is estimated by \(D = 0.1 (M+5) d v\) (kN m\(^{-1}\)), where \(M\) is the soil moisture percentage, \(d\) is the tillage depth in cm, and \(v\) is the forward speed in km h\(^{-1}\).\n\nIf the operation is carried out at a speed of \(5\) km h\(^{-1}\) in soil with \(12\)% moisture and a tillage depth of \(15\) cm, determine whether the tractor can maintain this speed without slipping.

Answer Options

A. No, the required power (35.0 kW) exceeds the available drawbar power (42.5 kW).
B. Yes, the required power (88.5 kW) is less than the available drawbar power (42.5 kW).
C. No, the required power (88.5 kW) exceeds the available drawbar power (55.0 kW).
Correct Answer D. No, the required power (88.5 kW) exceeds the available drawbar power (42.5 kW).
Correct Answer
D
Correct Option:
No, the required power (88.5 kW) exceeds the available drawbar power (42.5 kW).

About This Question

This is Neco 2020 Agricultural Science Question 3. It is one of the objective questions from the 2020 Neco Agricultural Science examination.

Difficulty level: Medium .

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