Waec Model Questions Vol1 2024 Agricultural Science Question 40

Practice objective / multiple choice question 40 from the 2024 Waec Model Questions Vol1 Agricultural Science examination.

Waec Model Questions Vol1 2024 Agricultural Science Objective / Multiple Choice Medium Difficulty
Question 40 WAEC_MODEL_QUESTIONS_VOL1 • 2024 • AGRICULTURAL_SCIENCE • objective

A three‑bottom plough has a total working width of 0.9 m. The soil draft required is 1500 N per metre of width. The tractor pulling the plough weighs 3000 kg and has a rolling‑resistance coefficient of 0.04. The tractor moves at 5 km h⁻¹. Assuming an overall transmission efficiency of 85 %, calculate the minimum engine power needed (in kilowatts, to one decimal place) and state the nearest whole horsepower rating required for the tractor.

Answer Options

Correct Answer A. Engine power ≈ 4.1 kW; nearest whole horsepower = 6 hp
B. Engine power ≈ 5.2 kW; nearest whole horsepower = 8 hp
C. Engine power ≈ 4.8 kW; nearest whole horsepower = 7 hp
D. Engine power ≈ 3.5 kW; nearest whole horsepower = 5 hp
Correct Answer
A
Correct Option:
Engine power ≈ 4.1 kW; nearest whole horsepower = 6 hp

About This Question

This is Waec Model Questions Vol1 2024 Agricultural Science Question 40. It is one of the objective questions from the 2024 Waec Model Questions Vol1 Agricultural Science examination.

Difficulty level: Medium .

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