Which one of the following shovel excavators is considered most efficient in loading carriers?
A.Dipper shovel
B.Drag line
C.Back hoe
D.Clam shell
Category: Engineeeing Mcqs
Standard air is air at
A.Atmospheric conditions at any specific location
B.1 kg/cm2 and atmospheric temperature (Relative humidity of 64%)
C.1 kg/cm2 and 20?C (Relative humidity of 36%)
D.1 kg/cm2 and 0?C (Relative humidity of 36%)
E.None of the above
Which of the following is not an incentive plan
A.Halsey plan
B.Taylor, 100% incentive plan
C.Gantt plan
D.Rowan plan
E.Standard plan
During burning of grain boundaries
A.regions enriched in carbon are formed in first state of burning
B.non-oxidized cavities and blow holes are formed during second stage
C.iron oxide inclusions are formed in third stage
D.All of the above
A black body absorbs all radiations. As a result of absorption of these radiations
A.A black body shines
B.The temperature of black body rises
C.Black body radiates energy to other bodies
D.Black body becomes good conductor of heat
The horse power required to move a belt conveyor increases as
A.conveyor speed
B.load increases
C.angle of inclination increases
D.all of the above
Temporary hardness of water is caused by
A.Bicarbonates of calcium and magnesium
B.Sulphates of calcium and magnesium
C.Chlorides of calcium and magnesium
D.Nitrates of calcium and magnesium
E.None of the above
The standard sulphur point temperature is
A.100?C
B.212?C
C.444.60?C
D.666.80?C
E.999.99?C
The solidification shrinkage of carbon steel is around
A.0.1 to 0.2 percent
B.0.5 to 1 percent
C.2 to 4 percent
D.8 to 10 percent
A material capable of absorbing large amounts of energy is known as
A.Ductile
B.Shock proof
C.Resilient
D.Hard
E.Tough
