Igcse Model Questions Vol1 2022 Physics Question 2

Practice objective / multiple choice question 2 from the 2022 Igcse Model Questions Vol1 Physics examination.

Igcse Model Questions Vol1 2022 Physics Objective / Multiple Choice Medium Difficulty
Question 2 IGCSE_MODEL_QUESTIONS_VOL1 • 2022 • PHYSICS • objective

A motor supplies \(2.0\) kW at \(1500\) rpm to a gearbox consisting of two gear pairs in series. The first pair has a gear ratio of \(3:1\) (driving : driven) and an efficiency of \(90\%\). The second pair has a gear ratio of \(4:1\) and an efficiency of \(85\%\). Determine the angular speed (in rpm) and torque (in N·m) of the final output shaft, and calculate the total power loss in the gearbox (in watts).

Answer Options

Correct Answer A. Output speed = 125 rpm, output torque ≈ 117 N·m, total power loss ≈ 471 W
B. Output speed = 150 rpm, output torque ≈ 105 N·m, total power loss ≈ 520 W
C. Output speed = 125 rpm, output torque ≈ 130 N·m, total power loss ≈ 400 W
D. Output speed = 100 rpm, output torque ≈ 130 N·m, total power loss ≈ 450 W
Correct Answer
A
Correct Option:
Output speed = 125 rpm, output torque ≈ 117 N·m, total power loss ≈ 471 W

About This Question

This is Igcse Model Questions Vol1 2022 Physics Question 2. It is one of the objective questions from the 2022 Igcse Model Questions Vol1 Physics examination.

Difficulty level: Medium .

View More Igcse Model Questions Vol1 2022 Physics Questions More Igcse Model Questions Vol1 Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support