A. 250°C
B. 500°C
C. 1000°C
D. 150CPC
E. 2000°C
A. fuelinjection starts at 10° before to dead center and ends at 20° after tor dead center
B. fuel injection starts at top dead center and ends at 20° after top dead center
C. fuel injection starts at just before top dead center and ends just after top deac center
D. may start and end anywhere
E. none of the above
In a typical medium speed, 4-stroke cycle diesel engine ___________________? Read More »
I.C. Engines A. air aione
B. air and fuel
C. air and lub oil
D. fuel alone
E. air, fuel and lub oil
A. peak pressure
B. rate of rise of pressure
C. rate of rise of temperature
D. peak temperature
E. rate of rise of horse-power
A. Diesel cycle
B. Otto cycle
C. Dual combustion cycle
D. Special type of air cycle
E. Carnot cycle
Most high speed compression engines operate on __________________? Read More »
I.C. Engines A. Otto cycle is more efficient than the Diesel
B. Diesel cycle is more efficient’than Otto
C. both Otto and Diesel cycles are, equally efficient
D. compression ratio has nothing to do with efficiency
E. which is more efficient would depend on engine capacity
For the same compression ratio_____________________? Read More »
I.C. Engines A. increase
B. decrease
C. remain same
D. increase upto certain limit and then decrease
E. decrease upto certain limit and then in-crease
A. exhaust will be smoky
B. piston rings would stick into piston grooves
C. exhaust temperature will be high
D. engine starts overheating
E. scavenging occurs
A. 180°
B. 125°
C. 235°
D. 200°
E. 275°
A. 0.15 kg
B. 0.2 kg
C. 0.25 kg
D. 0.3kg
E. 0.35 kg
