A transducer that converts the input physical phenomenon into an electrical output in the form of pulses is known as
A.Secondary transducer
B.Analogy transducer
C.Digital transducer
D.Tuned transistor
E.None of the above
Category: Mechanical Engineering Mcqs
The dew point temperature of humid air is
A.always higher than the wet bulb temperature
B.never lower than the wet bulb temperature
C.the temperature of air obtained on cooling it till saturation at constant pressure
D.the temperature of air obtained on cooling it till saturation at constant volume
To chck the performance of a substance in deep drawing, the test usually conducted is
A.Tensile test
B.Fatigue test
C.Izod test
D.Charpy test
E.Cupping test
The difference between wet and dry bulb temperature
A.Increases at atmospheric temperature
B.Increases as air gets wet
C.Increases as air gets drier
D.Remains constant always
E.None of the above
The number of degrees of feeedom for a vibrating beam will be
A.Nil
B.One
C.Two
D.Four
E.Five
The pouring of molten metal during casting should be stopped when
A.Molten metal is exhausted
B.Molten is full
C.Molten metal is seen through the riser
D.Molten metal rises in the riser
E.Molten metal flows out of the riser
The process of bringing out the lustre of metal usually by the use of cloth wheels is known as
A.Buffing
B.Burnishing
C.Finishing
D.Deburring
E.Carmetting
In case of channels, shooting flow does not occur
A.In a channel with low gradient
B.In a horizontal channel
C.In a steep channel
D.In a trapezoidal channel
E.Directly after a hydraulic jump
A diesel engine cannot be
A.used as prime-mover on locomotives
B.started on load
C.more efficient than a petrol engine
D.run on variable speed
The maximum allowable limit that a measurement may vary from the true value is known as
A.expected error
B.permissible error
C.Range of error
D.None of the above
