In diesel engine the diesel fuel injected into cylinder would burn instantly at about compressed air temperature of____________________? A. 250°C B. 500°CC. 1000°C D. 150CPC E. 2000°C
In a typical medium speed, 4-stroke cycle diesel engine ___________________? 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…
Which of the following medium is compressed in a Diesel engine cylinder __________________? A. air aione B. air and fuel C. air and lub oil D. fuel alone E. air, fuel and lub oil
As a result of detonation in an I.C. engine, following parameter attains very high value _____________________? A. peak pressureB. rate of rise of pressure C. rate of rise of temperature D. peak temperature E. rate of rise of horse-power
Most high speed compression engines operate on __________________? A. Diesel cycle B. Otto cycleC. Dual combustion cycle D. Special type of air cycle E. Carnot cycle
For the same compression ratio_____________________? 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.…
It the temperature of intake air in IC engines is lowered, then its efficiency will_______________________? A. increase B. decrease C. remain same D. increase upto certain limit and then decrease E. decrease upto certain limit and then in-crease
If one cylinder of a diesel engine receives more fuel than the others, then for that cylinder the________________? A. exhaust will be smoky B. piston rings would stick into piston grooves C. exhaust temperature will be high D. engine starts…
The inlet value of a four stroke cycle I.C engine remains open for nearly___________________? A. 180° B. 125°C. 235° D. 200° E. 275°
The specific fuel consumption per BH hour for a petrol engine is approximately__________________? A. 0.15 kg B. 0.2 kgC. 0.25 kg D. 0.3kg E. 0.35 kg