QUESTION ONE
Define the following terms:
[1 mark]
[1 mark]
a) Ultimate tensile stress.
b) A hollow cast iron cylinder 4 m long, 300 mm outside diameter and thickness of
b) Factor of safety. metal 50 mm is subjected to central load on top when standing straich. The stress produced is \( 75,000 \mathrm{KN} / \mathrm{m}^{2} \). Calculate: \( F=1.5 \times 10^{8} \mathrm{~cm} / \mathrm{m}^{2} \)
i. Magnitude of load.
[3 marks]
II. Longitudinal strain produced.
[3 marks]
iif. Total decrease in length.
[2 marks]