Waec Model Questions Vol1 2022 Agricultural Science Question 24

Practice objective / multiple choice question 24 from the 2022 Waec Model Questions Vol1 Agricultural Science examination.

Waec Model Questions Vol1 2022 Agricultural Science Objective / Multiple Choice Medium Difficulty
Question 24 WAEC_MODEL_QUESTIONS_VOL1 • 2022 • AGRICULTURAL_SCIENCE • objective

A tractor of weight 3,000 N must pull a single‑bottom plough 1.2 m wide through a field. The soil resistance is 1,500 N per metre of travel for each metre of plough width. The tractor moves at 5 km/h up a 2% slope. Rolling resistance coefficient of the tractor wheels is 0.02. Assuming a drivetrain efficiency of 85%, calculate the minimum engine power required (in kW).

Answer Options

A. Approximately 2.5 kW
Correct Answer B. Approximately 3.14 kW
C. Approximately 4.2 kW
D. Approximately 5.0 kW
Correct Answer
B
Correct Option:
Approximately 3.14 kW

About This Question

This is Waec Model Questions Vol1 2022 Agricultural Science Question 24. It is one of the objective questions from the 2022 Waec Model Questions Vol1 Agricultural Science examination.

Difficulty level: Medium .

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