Rajasthan Polytechnic Third Year Paper 2016 – Instrumentation Workshop

Rajasthan Polytechnic Third Year Paper 2016 – Instrumentation Workshop

Pressure is defined as
(a) Force divide by unit area
(b) Unit area divided by force
(c) Force multiply by unit area
(d) All of the above

In which type of bourdon tube tip travel is small?
(a) C-type
(b) Spiral type
(c) Helical type
(d) None of the above

Which is NOT correct statement about selection of tube material for a Bourdon gauge?
(a) Have high creep strength to withstand high temperature
(b) Be stable enough to maintain its calibration indefinitely
(c) Be immune to corrosion from the fluid inside the tube and from the atmosphere outside it
(d) Be easy to fabricate

Which one of these thermometers is best suited for measuring rapidly changing temperature?
(a) Resistance Thermometer
(b) Thermocouple
(c) Mercury glass Thermometer
(d) Thermistor

Temperature sensing can be achieved by the use of
(a) Resistance thermometer
(b) Thermocouple
(c) Thermistors
(d) All of the above

Which device has a negative temperature coefficient?
(a) Strain gauge
(b) Thermocouple
(c) Thermistor
(d) None of the above

Dead weight pressure tester is used for
(a) testing of dead weights
(b) measuring process pressures
(c) for developing high vacuum
(d) Calibrating pressure gauges

The baisc element in a manometer is
(a) Capillary
(b) Bellow
(c) Diaphragm
(d) U-tube

A bourdon tube is a key element of
(a) a piezoelectric pressure tranducer
(b) a dial type mechanical pressure gauge
(c) Barometer
(d) An inclined U-tube manometer

Pick up the appropriate word for a pointer moving over a scale
(a) Instrument
(b) Indicator
(c) Transducer
(d) Recorder

For studying detailed variations with time, one uses
(a) Indicator
(b) Transducer
(c) Recorder
(d) Integrator

Which of the following device is used as a standard for calibrating pressure gauges?
(a) Manometer
(b) Diaphragm
(c) Piezoelectric crystal
(d) Dead weight tester