A. calorific value of oil
B. low heat value of oil
C. high heat value of oil
D. mean heat value of oil
E. all of the above
A. 2%
B. 4%
C. 8%
D. ±4%
E. 1%.
A. Brown coal
B. Anthracite coal
C. Hard coke
D. Woodchar coal
A. Higher
B. Lower
C. Equal
D. None of these
A. the time taken by fuel after injection (before top dead center) to reach upto auto-ignition temperature
B. time before actual fuel injection and the pump pluger starts to pump fuel
C. time corresponding to actual injection and top dead center
D. time corresponding to actual ignition and top dead center
E. none of the above
A. scavenging
B. turbulence
C. supercharging
D. pre-ignition
E. dissociation and carburretion of fuel
A. the friction is high
B. the friction is unpredictable
C. the small difference in cooling water temperature or in internal friction has a disproportionate effect
D. the engine is rarely operated
E. none of the above