A. more efficient
B. less efficient
C. equally efficient
D. unperdictable
E. other factors will decide it
Related Mcqs:
- The thermal efficiency of a petrol engine of two stroke with crank case scavenging as compared to four stroke petrol engine with same comperssion ratio will be_____________________?
A. higher
B. lower
C. same
D. depends on size of engine
E. unpredictable. - 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
E. unpredictable - Diesel engine can work on very lean air fuel ratio of the order of 30 : 1. A petrol engine can also work on such a lean ratio provided__________________?
A. it is properly designed
B. best quality fuel is used
C. can not work as it is impossible
D. flywheel size is proper
E. engine cooling is stopped - A 5 BHP engine running at full load would consume diesel of the order of_________________?
A. 0.3 kg/hr
B. 1 kg/hr
C. 3 kg/hr
D. 5 kg/hr
E. 10 kg/hr - Diesel engines have low specific fuel consumption compared to petrol engine. This statement is____________________?
A. not true
B. true at full load
C. true at part load
D. true at both part and full load
E. there could not be any such criterion - 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 - If petrol is used in a diesel engine, then______________?
A. higher knocking will occur
B. efficiency will be low
C. low power will be produced
D. black smoke will be produced
E. lot of fuel will remain unburnt - In diesel engine the diesel fuel injected into cylinder would burn instantly at about compressed air temperature of____________________?
A. 250°C
B. 500°C
C. 1000°C
D. 150CPC
E. 2000°C - High carbon content in diesel oil used for diesel engine leads to_________________?
A. production of highly corrosive gases corroding the cylinder walls and exhaust system
B. excessive engine wear
C. damaging of both the storage tank and the engine
D. deposition on engine parts
E. none of the above. - With increase in engine speed, the ignition of spark in petrol engine has to be __________________?
A. Unaltered
B. Increased
C. Decreased
D. Advanced
