City Guilds Model Questions Vol1 2021 Engineering Question 30

Practice objective / multiple choice question 30 from the 2021 City Guilds Model Questions Vol1 Engineering examination.

City Guilds Model Questions Vol1 2021 Engineering Objective / Multiple Choice Medium Difficulty
Question 30 CITY_GUILDS_MODEL_QUESTIONS_VOL1 • 2021 • ENGINEERING • objective

A motor supplies \(1500\ \text{W}\) at \(1500\ \text{rpm}\). It drives a load through a two‑stage gear train: the first stage has a ratio of 3:1 (driver:driven) and the second stage a ratio of 2:1. The load requires a torque of at least \(250\ \text{Nm}\) at its shaft. (i) Can the given motor meet the load requirement? (ii) If not, what is the minimum motor power (keeping the same speed) required to satisfy the load?

Answer Options

A. Yes; minimum motor power ≈ 5.8 kW
Correct Answer B. No; minimum motor power ≈ 6.6 kW
C. No; minimum motor power ≈ 5.2 kW
D. No; minimum motor power ≈ 7.4 kW
Correct Answer
B
Correct Option:
No; minimum motor power ≈ 6.6 kW

About This Question

This is City Guilds Model Questions Vol1 2021 Engineering Question 30. It is one of the objective questions from the 2021 City Guilds Model Questions Vol1 Engineering examination.

Difficulty level: Medium .

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