A Best Way To Crack Gorenment Job Exams

Mechanical Engineering Objective Questions { Internal Combustion Engines }

43. The air-fuel ratio of the petrol engine is controlled by?
A.Fuel jump
Discuss in Forum

44. In a typical medium speed, 4-stroke cycle diesel engine
A.Fuel injection starts at 10° before top dead centre and ends at 20° after top dead centre
B.Fuel injection starts at top dead centre and ends at 20° after top dead centre
C.Fuel injection starts at just before top dead centre and ends just after top dead centre
D.May start and end anywhere
Discuss in Forum

45. Diesel fuel, compared to petrol is
A.Less difficult to ignite
B.Just about the same difficult to ignite
C.More difficult to ignite
D.Highly ignitable
Discuss in Forum

46. In diesel engine the diesel fuel injected into cylinder would burn instantly at about compressed air temperature of
Discuss in Forum

47. When crude oil is heated, then which of the following hydrocarbon is given off first.
B.Natural gas
Discuss in Forum

48. The rating of a diesel engine, with increase in air-intlet temperature, will
A.Increase linearly
B.Decrease linearly
C.Increase parabolically
D.Decrease parabolically
Discuss in Forum

49. A 75 cc engine has following parameter as 75 cc
A.Fuel tank capacity
B.Lub oil capacity
C.Swept volume
D.Cylinder volume
Discuss in Forum

Page 7 of 54

« 5 6  7  89 »