City Guilds Model Questions Vol1 2023 Engineering Question 2

Practice practical question 2 from the 2023 City Guilds Model Questions Vol1 Engineering examination. This question covers Thermal Physics, Heat Transfer .

City Guilds Model Questions Vol1 2023 Engineering Practical
Topics: Thermal Physics Heat Transfer
Question 2 CITY_GUILDS_MODEL_QUESTIONS_VOL1 • 2023 • ENGINEERING • practical

In a steady‑state heat‑conduction experiment, a uniform metal rod of length 0.500 m and cross‑sectional area 2.0 × 10⁻⁴ m² is heated at one end by an electric heater. The heater is powered by a 10.0 V supply drawing a current of 1.0 A. After the system reaches thermal equilibrium, the temperature at the heated end is 80 °C and at the opposite end is 30 °C. Using the data provided, evaluate the thermal performance of the rod and discuss experimental reliability.

Question Parts

( a )
Calculate the rate of heat flow (in watts) supplied by the electric heater.
( b )
Determine the thermal conductivity (k) of the rod using Fourier’s law for steady‑state conduction (Q = k A ΔT / L).
( c )
Identify two possible sources of error in this experiment and suggest a practical method to reduce each error.

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About This Question

This is City Guilds Model Questions Vol1 2023 Engineering Question 2. It is one of the practical questions from the 2023 City Guilds Model Questions Vol1 Engineering examination.

The question covers Thermal Physics, Heat Transfer .

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