The line traced by a single fluid particle as it moves over a period of time is known as
A.Line of force
B.Filament line
C.Flow line
D.Path line
E.Streak line
Category: Mechanical Engineering Mcqs
When not in use, the self-discharge of an automobile battery in dry weather is usually
A.0.5 to 1%
B.7 to 7.5%
C.Not more than 10%
D.Not more than 15%
The ratio of outlet whirl velocity to blade velocity in case of centrifugal compressor is called
A.slip factor
B.Velocity ratio
C.Blade efficiency
D.Diagram efficiency
The amount of cold work that a metal will stand is dependent upon
A.Room temperature
B.Carbon percentage
C.Process
D.Purity of metal
E.Ductility
The cam angle is
A.The angle subtended by the live portion of the cam for a definite displacement of the follower
B.The angle subtended by live portion of the cam at the cam centre
C.The angle subtended at the cam centre by the protion of the cam during which the follower moves
D.The angle subtended by the cam at the cam centre when the follower dwells
E.None of the above
Which one is very sensitive to changes in iterest rate
A.Supply of notes and coins
B.Supply of bank money
C.Speculative demand for money
D.Transactions demand for money
E.None of the above
In which case the heat transferred from the air when compressed from 1.05 ata 15?C to 6.3 ata would be minimum?
A.Adiabatic
B.Isothermal
C.Polytropic pv1.3 = C
D.Polytropic pv1.31 = C
E.Polytropic pv1.35 = C
The function of a distributor is
A.To distribute power
B.To distribute fuel
C.To distribute spark
D.To time the spark
E.To generate the spark
The function of a windmill is to extract energy from the wind and to produce
A.mechanical energy
B.thermal energy
C.electrical energy
D.chemical energy
A gate is the
A.Passage through which metal is poured into the mould
B.Passage through which metal rises when the mould is filled
C.Passage that finally leads molten metal from the runner into the mould cavity
D.Vent hole to allow for the hot gases to escape
E.Channel for the flow of excess molten material
