City Guilds Model Questions Vol1 2025 Engineering Question 44

Practice objective / multiple choice question 44 from the 2025 City Guilds Model Questions Vol1 Engineering examination.

City Guilds Model Questions Vol1 2025 Engineering Objective / Multiple Choice Medium Difficulty
Question 44 CITY_GUILDS_MODEL_QUESTIONS_VOL1 • 2025 • ENGINEERING • objective

A cylindrical pipe has an outer diameter of \(100\ \text{mm}\) and a length of \(500\ \text{mm}\). Its wall thickness tapers linearly from \(8\ \text{mm}\) at one end to \(12\ \text{mm}\) at the other end. Determine (a) the average wall thickness, and (b) the volume of the pipe material in cubic millimetres, assuming the inner diameter varies linearly with the thickness.

Answer Options

A. Average thickness = 10.5 mm; Volume = 470400π mm³ ≈ 1.48×10⁶ mm³
B. Average thickness = 9 mm; Volume = 403200π mm³ ≈ 1.27×10⁶ mm³
C. Average thickness = 11 mm; Volume = 492800π mm³ ≈ 1.55×10⁶ mm³
Correct Answer D. Average thickness = 10 mm; Volume = 448000π mm³ ≈ 1.41×10⁶ mm³
Correct Answer
D
Correct Option:
Average thickness = 10 mm; Volume = 448000π mm³ ≈ 1.41×10⁶ mm³

About This Question

This is City Guilds Model Questions Vol1 2025 Engineering Question 44. It is one of the objective questions from the 2025 City Guilds Model Questions Vol1 Engineering examination.

Difficulty level: Medium .

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