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Question

In a temporary forest camp, which of the following engines can prove best for the generation of electricity for several hours?

A
Steam Engine
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B
Diesel engine
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C
Petrol engine
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D
Hand operated dynamo
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Solution

The correct option is A Diesel engine
(a) The bulk and the heavy weight of a steam engine is not suitable for generation of electricity in a temporary forest camp. Water needs to be heated to produce steam. This takes time and therefore engine can't start instantly.
(b) The petrol engine is suitable for the location. However, the petrol engine is spark ignition engine. The spark plug is an unreliable component of this engine.
(c) Hand operated dynamo is suitable for the location. But it is not suitable for generation of electricity for several hours.
(d) The diesel engine is suitable for the location. Its working is not dependent on unreliable spark plug as the diesel engine is compression ignition engine.

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