A strain gauge material should have low
A.Gauge factor
B.Sensitivity
C.Resistance temperature coefficient
D.All of the above
Category: Mechanical Measurements Mcqs
A geodimeter is based on the principle of
A.Optics
B.X-rays
C.Microwaves
D.Reflection of light waves
E.Propagation of modulated light waves
A LVDT has
A.One primary coil and two secondary coils
B.Two primary coils and one secondary coil
C.One primary coil and one secondary coil
D.Two primary coils and two secondary coils
Phosphor bronze Bourdon tube can be used of pressures upto
A.5 kg/cm2
B.10 kg/cm2
C.15 kg/cm2
D.70 kg/cm2
E.170 kg/cm2
In measurements using two strain gauges, the purpose of dummy strain gauge is
A.To unllify the errors due to temperature
B.Improve stability of the measuring system
C.Measure lateral strain
D.Increase the sensitivity of measuring system
Which of the following standard can be used for defining length?
A.Bar standard
B.End standard
C.Light wave standard
D.Any of the above
E.None of the above
A steel scale is slightly shorter when compared with a standard scale. This type of error is known as
A.natural error
B.systematic error
C.instrumental error
D.None of the above
Which of the following statement is wrong for thermocouple measuring instruments?
A.They read average values
B.They read rms values
C.They cannot take overheads
D.When calibrated on dc they cannot be used for ac signals
E.Their calibration dies not change with time or temperature
In a CRO, ouput from which type of oscillator is applied to the horizontal deflection plate
A.square wave oscillator
B.sinusoidal wave oscillator
C.sawtooth wave oscillator
D.None of the above
Which of the following flow measuring instrument is an area meter?
A.Venturimeter
B.Rotameter
C.Pitot tube
D.Hot wire anemometer
E.None of the above
