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Month: January 2019

In the case of petrol engine at maximum output, the percentage of CO in exhaust gases is ____________________?

August 16, 2021January 29, 2019 by admin
In the case of petrol engine at maximum output, the percentage of CO in exhaust gases is ____________________?

A. Zero
B. 5-10%
C. Depends on load and quality of fuel
D. Considerable percent

Categories I.C. Engines

All the four operations in two stroke engine are performed in following number of revolutions of crank shaft______________________?

August 16, 2021January 29, 2019 by admin
All the four operations in two stroke engine are performed in following number of revolutions of crank shaft______________________?

A. Half
B. One
C. Two
D. Four

Categories I.C. Engines

As the number of cylinders in multi-cylinder engine increases, the power to weight ratio_______________?

August 16, 2021January 29, 2019 by admin
As the number of cylinders in multi-cylinder engine increases, the power to weight ratio_______________?

A. Decreases
B. Increases
C. Remains same
D. Decreases upto a limit and then increases

Categories I.C. Engines

The termal efficiency of a petrol engine at design load is around_________________?

August 16, 2021January 29, 2019 by admin
The termal efficiency of a petrol engine at design load is around_________________?

A. 90%
B. 50%
C. 40%
D. 30%
E. 15%.

Categories I.C. Engines

Method of governing used in petrol engine is________________?

August 16, 2021January 29, 2019 by admin
Method of governing used in petrol engine is________________?

A. quantity governing
B. quality governing
C. combined governing
D. partial governing
E. hit and miss governing

Categories I.C. Engines

Method of governing used in diesel engine is__________________?

August 16, 2021January 29, 2019 by admin
Method of governing used in diesel engine is__________________?

A. quantity governing
B. quality governing
C. combined governing
D. partial governing
E. nit and miss governing

Categories I.C. Engines

In isochronous governing, speed droop is_______________?

August 16, 2021January 29, 2019 by admin
In isochronous governing, speed droop is_______________?

A. 100%
B. 50%
C. 5%
C. 30%
E. 1%.

Categories I.C. Engines

An engine has a normal speed of 960 r.p.m. and no load speed of 1000 r.p.m. The speed droop of governor will be about___________________?

August 16, 2021January 29, 2019 by admin
An engine has a normal speed of 960 r.p.m. and no load speed of 1000 r.p.m. The speed droop of governor will be about___________________?

A. 2%
B. 4%
C. 8%
D. ±4%
E. 1%.

Categories I.C. Engines

If diesel is fed by mistake in the oil tank of a petrol engien, then engine will________________?

August 16, 2021January 29, 2019 by admin
If diesel is fed by mistake in the oil tank of a petrol engien, then engine will________________?

A. give lot of smoke
B. detonate
C. knock
D. not run
E. run for some time and then stop

Categories I.C. Engines

For the same size and weight, a two stroke engine as compared to four stroke engine will generate power_________________?

August 16, 2021January 29, 2019 by admin
For the same size and weight, a two stroke engine as compared to four stroke engine will generate power_________________?

A. about twice
B. about 0.5 times
C. nearly equal
D. about 1.7 times
E. about 5 times

Categories I.C. Engines
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