Engineering :: Mechanical Measurements

@ : Home > Mechanical Engineering > Mechanical Measurements

111.

The lead zone is a certain pyrometer is 0.125 percent of span. The calibration is 400?C to 1000?C. What temperature change might occur before it is detected?

A.	0.075?C	B.	0.75?C
C.	1.5?C	D.	3?C
E.	7.5?C

112.

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

113.

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

114.

Which of the following transducer is used to translate linear motion into electrical signals?

A.	LVDT	B.	Thermistor
C.	Bellows	D.	Strain gauge
E.	Bourdons tube

115.

A 4

A.	9999	B.	1000
C.	19999	D.	99999
E.	10000

116.

A hot wire anemometer is used to measure

A.	Pressure of gases	B.	Liquid discharges
C.	Very low pressures	D.	Gas velocities
E.	Diameter of fine particles

117.

A rotameter can be used to measure

A.	Rotation	B.	Flow
C.	Viscosity	D.	Specific gravity
E.	Pressure of wind

118.

Flow of water in a pipe of 250 cm diameter can be measured by

A.	Orifice plate	B.	Venturimeter
C.	Rotameter	D.	Pitot tube
E.	Manometer

119.

Which of the following device can be used to measure blow of air around an aeroplane?

A.	Venturimeter	B.	Rotameter
C.	Orifice	D.	Anemometer
E.	Manometer

120.

A magneto-strictive transducer works on the principle of variations of

A.	Permeability of magnetic materials when subjected to strain	B.	Resistance of material when subjected to strain
C.	Flux linkage of material when subjected to strain	D.	None of the above