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
(D) 10 kg/hr
The following volume of air is required for consuming 1 liter of fuel by a four stroke engine_______________?
(A) 1 m3
(B) 5 m3
(C) 5-6 m3
(D) 9-10 m3
(D) 15-18 m3
Air fuel ratio at which a petrol engine can not work is_________________?
(A) 8 : 1
(B) 10 : 1
(C) 15 : 1
(D) 20 : 1 and less
(D) will work at all ratios
The theoretically correct air fuel ratio for petrol engine is of the order of___________________?
(A) 6 : 1
(B) 9 : 1
(C) 12 : 1
(D) 15 : 1
(D) 20 : 1
Scavenging is usually done to increase__________________?
(A) thermal efficiency
(B) speed
(C) power output
(D) fuel consumption
(D) all of the above
For the same power developed in I.C. engines, the cheaper system is_____________?
(A) naturally aspirated
(B) supercharged
(C) centrifugal pump
(D) turbo charger
(D) none of the above
In a typical medium speed 4-stroke cycle diesel engine the inlet valve_____________________?
(A) opens at 20° before top dead center and closes at 35° after the bottom dead center
(B) opens at top dead center and closes at bottom dead center
(C) opens at 10° after top dead center and closes 20° before the bottom dead center
(D) may open or close anywhere
(D) remains open for 200°.
An engine indicator is used to determine the following___________________?
(A) speed
(B) temperature
(C) volume of cylinder
(D) m.e.p. and I.H.P.
(D) BHP
If the intake air temperature of I.C. engine increases, its efficiency will_________________?
(A) increase
(B) decrease
(C) remain same
(D) unpredictable
(D) depend on other factors
The ratio of indicated thermal efficiency to the corresponding air standard cycle efficiency is called__________________?
(A) net efficiency
(B) efficiency ratio
(C) relative efficiency
(D) overall efficiency
(D) cycle efficiency