Waec Model Questions Vol1 2018 Agricultural Science Question 9

Practice objective / multiple choice question 9 from the 2018 Waec Model Questions Vol1 Agricultural Science examination.

Waec Model Questions Vol1 2018 Agricultural Science Objective / Multiple Choice Medium Difficulty
Question 9 WAEC_MODEL_QUESTIONS_VOL1 • 2018 • AGRICULTURAL_SCIENCE • objective

A smallholder intends to run a 2.5 kW water pump using a diesel engine that runs at 1500 rpm. The engine's mechanical efficiency is 85 %. Power is transmitted to the pump through a belt drive that has an efficiency of 92 % and a speed‑reduction ratio of 3:1 (engine pulley : pump pulley). Determine the actual power available at the pump shaft and state whether it meets the pump's 2.5 kW requirement.

Answer Options

A. ≈ 1.75 kW; insufficient for the pump
B. ≈ 2.10 kW; sufficient for the pump
C. ≈ 2.50 kW; sufficient for the pump
Correct Answer D. ≈ 1.96 kW; insufficient for the pump
Correct Answer
D
Correct Option:
≈ 1.96 kW; insufficient for the pump

About This Question

This is Waec Model Questions Vol1 2018 Agricultural Science Question 9. It is one of the objective questions from the 2018 Waec Model Questions Vol1 Agricultural Science examination.

Difficulty level: Medium .

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