Mechanical Engineering Questions and Answers
Challenge your knowledge of machinery, prepare for your exams or aptitude tests with these Mechanical Engineering questions and answers.
Challenge your knowledge of machinery, prepare for your exams or aptitude tests with these Mechanical Engineering questions and answers.
The compression ratio in petrol engine is kept less than in Diesel engine because
it makes petrol engines lighter
higher or equivalent compression ratio in petrol engines is not possible due to pre-ignition
less compression ratio gives better performance
it is just customary to have less compression ratio in petrol engines
Correct answer is B
No explanation has been provided for this answer.
The main function of the tread pattern on tyre is that
the tread grooves pass air between the tyre and road surface, thereby preventing tyre from overheating
the crests between the tread grooves absorb road noise
in wet conditions, the tread grooves expel water that is drawn between the tyre and road surface
the tread pattern protects the tyre's inner carcass from small stones and pieces of glass
Correct answer is C
No explanation has been provided for this answer.
The aluminium alloy is used in cylinder blocks because
it is lighter and have good heat dissipation characteristics
material cost is low
it does not require any cylinder liners
the piston is also made of aluminium alloy
Correct answer is A
No explanation has been provided for this answer.
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