Tag: #thermalstress
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EK Electrical Oct 2021 (Q10)
(a) State the consequences of using a DOL starters for comparatively large sized AC induction motors (2) (b) Describe, with the aid of a sketch, an electronic soft starting system that may be used for large sized AC induction motors (8) Oct 2021 (Q10)
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EK Motor Dec 2024 (Q8)
(a) With reference to an engine cylinder liner explain the term “Thermal Stress”, indicating how and why it occurs during operation of an engine. (4) (b) Explain how the upper part of a cylinder liner is subjected to fatigue during engine operation. (4) (c) Explain how thermal stress and fatigue combine and can lead to…
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EK Motor Oct 2022 (Q2)
(a) Explain, with the aid of a sketch, Thermal Stress, stating how thermal stress is induced in the cylinder liner when the engine is operating. (8) (b) Explain why thermal stress may be damaging to an engine cylinder. (4) (c) Explain how thermal stress may be avoided in an operating engine without reducing engine power…
UKM Tuticorin 