A. 100%
B. 50%
C. 5%
C. 30%
E. 1%.
In isochronous governing, speed droop is_______________? Read More »
I.C. Engines A. 2%
B. 4%
C. 8%
D. ±4%
E. 1%.
A. give lot of smoke
B. detonate
C. knock
D. not run
E. run for some time and then stop
A. about twice
B. about 0.5 times
C. nearly equal
D. about 1.7 times
E. about 5 times
A. S.I. engine
B. C.I. engine
C. both are equally good
D. multicylinder engine
E. two stroke engine
For low load operation, more suitable (economical) engine is_______________? Read More »
I.C. Engines A. increases
B. decreases
C. remains unaffected
D. depends on other factors
E. unpredictable
Hot air standard diesel cycle efficiency with increase in value of C„_______________? Read More »
I.C. Engines A. S.I. engine
B. C.I. engine
C. two stroke engine
D. four stroke engine
E. all of the above
Which of the following engines can work on very lean mixture__________________? Read More »
I.C. Engines A. the shape and layout of the piston crown, the inlet port, and the valve produce the turbulent effect on fuel mixture
B. fuel is injected into an auxiliary chamber that is separated from the cylinder by an orifice or throat
C. only a part of air charge is contained in an auxiliary chamber in which the fuel starts to burn with insufficient air which due to explosion tendency mixes thoroughly into main cylinder charge
D. fuel is injected at atmospheric pres¬sure
E. there are no valves.
In open combustion chamber in diesel engines____________________? Read More »
I.C. Engines A. increase the knocking tendency
B. decrease the knocking tendency
C. not affect the knocking tendency
D. increase or decrease knocking tendency depending on strength and time of spark
E. unpredictable
A. gas engine
B. 2-stroke S.I. engine
C. 4-stroke S.I. engine
D. steam engine
E. 4-stroke C.I. engine
Theoretically, the following engine should have maximum efficiency________________? Read More »
I.C. Engines