Mechanical Engineering MCQs

2075 MCQs  (Page 121 of 208)

Attempt Mechanical Engineering Mcqs Quiz
The air-fuel ratio of the petrol engine is controlled by__________________?
A. Fuel pump
B. Governor
C. Injector
D. Carburettor
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Diesel fuel, compared to petrol is_________________?
A. Less difficult to ignite
B. Just about the same difficult to ignite
C. More difficult to ignite
D. Highly ignitable
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When crude oil is heated, then which of the following hydrocarbon is given off first______________?
A. kerosene
B. gasoline
C. paraffin
D. diesel
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A 75 cc engine has following parameter as 75 cc ___________________?
A. Fuel tank capacity
B. Lub oil capacity
C. Swept volume
D. Cylinder volume
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Gaseous-fuel guarantees are based on___________________?
A. Calorific value of oil
B. Low heat value of oil
C. High heat value of oil
D. Mean heat value of oil
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Polymerisation is a chemical process in which molecules of a compound become________________?
A. Larger
B. Slowed down
C. Smaller
D. Liquid
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In diesel engine, the compression ratio in comparison to expansion ratio is_______________?
A. Same
B. Less
C. More
D. Variable
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Engine pistons ‘are usually made of aluminium alloy because it_________________?
A. Is lighter
B. Wears less
C. Absorbs shocks
D. Is stronger
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The specific fuel consumption of a petrol engine compared to diesel engine of same H.P. is_______________?
A. Same
B. More
C. Less
D. Less or more depending on operating conditions
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The size of inlet valve of.an engine in comparison to exhaust valve is_________________?
A. More
B. Less
C. Same
D. More/less depending on capacity of engine
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Word of the Day
28 Sep
Expatriate
a person who lives outside their native country.
ملک بدری، جلا وطن کرن، شہر بدر کرنا

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