In simple harmonic motion the acceleration is proportional to
A.Displacement
B.Linear velocity
C.Angular velocity
D.Rate of change of angular velocity
E.None of the above
Category: Mechanical Engineering Mcqs
A short tube mouthpiece will not run full at its outlet if the head under which the orifice work is
A.Less than 5 m of water
B.More than 12.5 m of water
C.Less than 10 m of water
D.Between 5 and 10 m of water
E.Less than 3 m of water
Two shafts have their axes not in the same straight line. Also their axes are not parallel but intersecting. Which of the following coupling can be used for these shafts?
A.Flexible coupling
B.Universal coupling
C.Oldham’s coupling
D.Rigid coupling
E.Any of the above
The process of reheating hardened steel to temperature below the lower critical temperature followed by any desired rate of cooling, is known as
A.Hardening
B.Spheroidizing
C.Tempering
D.Annealing
E.Normalizing
Forced vibrations
A.Are preceded by free vibrations
B.Are followed by free vibrations
C.Have a frequency more than the natural frequency
D.Are independent of natural frequency
E.None of the above
If the roof of a house is replaced by a shiny metallic surface the temperature inside will
A.Increase
B.Remain unaltered
C.Decrease
Which of the following industry will usually have the highest concumption of water for processing?
A.Foundry
B.Steel plant
C.Automobile industry
D.Paper mill
E.Aluminium industry
In which part of the vapour compression cycle there is abrupt change in pressure and temperature
A.Solenoid valve
B.Drier
C.Expansion valve
D.Evaporator
E.The change is gradual throughout the cycle
Advantage of a diesel engine over petrol engine is
A.Low fuel consumption at full load as well as part load
B.Smooth operation at all speeds
C.Low compression ratio
D.No detonation problems
E.All of the above
A vertical demand curve for a commodity shows that demand is
A.Highly elastic
B.Perfectly melastic
C.Fairly elastic
D.Moderately elastic
E.Totally inelastic
