Neco Model Questions Vol1 2017 Agricultural Science Question 13

Practice objective / multiple choice question 13 from the 2017 Neco Model Questions Vol1 Agricultural Science examination.

Neco Model Questions Vol1 2017 Agricultural Science Objective / Multiple Choice Medium Difficulty
Question 13 NECO_MODEL_QUESTIONS_VOL1 • 2017 • AGRICULTURAL_SCIENCE • objective

A farmer can use either a moldboard plough or a disc plough. The draft required for the moldboard plough is \(D_m = 0.8\,W\) (N) and for the disc plough \(D_d = 0.5\,W + 30\) (N), where \(W\) is the weight of soil turned per furrow in kilograms. The soil bulk density is \(1.4\) g cm\(^{-3}\). Each furrow is \(30\) cm wide, \(20\) cm deep and \(10\) m long. The tractor can supply a maximum draft of \(1500\) N. Which plough can be used without exceeding the tractor's capacity?

Answer Options

A. Disc plough (requires 600 N, lower than moldboard's 800 N)
B. Moldboard plough (requires 672 N, exceeds tractor capacity)
Correct Answer C. Disc plough (requires 450 N, lower than moldboard's 672 N)
D. Moldboard plough (requires 450 N, lower than disc's 672 N)
Correct Answer
C
Correct Option:
Disc plough (requires 450 N, lower than moldboard's 672 N)

About This Question

This is Neco Model Questions Vol1 2017 Agricultural Science Question 13. It is one of the objective questions from the 2017 Neco Model Questions Vol1 Agricultural Science examination.

Difficulty level: Medium .

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