City Guilds Model Questions Vol1 2025 Engineering Question 11

Practice objective / multiple choice question 11 from the 2025 City Guilds Model Questions Vol1 Engineering examination.

City Guilds Model Questions Vol1 2025 Engineering Objective / Multiple Choice Medium Difficulty
Question 11 CITY_GUILDS_MODEL_QUESTIONS_VOL1 • 2025 • ENGINEERING • objective

A steel rod 2.0 m long with a cross‑sectional area of 20 mm² is subjected to a tensile load of 50 kN and a uniform temperature rise of 30 °C. The Young's modulus of steel is \(200\text{ GPa}\) and its coefficient of linear expansion is \(12\times10^{-6}\,^{\circ}\text{C}^{-1}\). Assuming the load and temperature change act simultaneously, calculate the total change in length of the rod. Give your answer in millimetres to two decimal places.

Answer Options

Correct Answer A. 25.72 mm
B. 30.12 mm
C. 27.80 mm
D. 23.45 mm
Correct Answer
A
Correct Option:
25.72 mm

About This Question

This is City Guilds Model Questions Vol1 2025 Engineering Question 11. It is one of the objective questions from the 2025 City Guilds Model Questions Vol1 Engineering examination.

Difficulty level: Medium .

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