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.Management Sciences
Category: Process Control and Instrumentation
Sub-zero temperature (< 0°C) can be measured by a constant volume gas thermometer employing ?
0
A. Helium
B. Nitrogen
C. Hydrogen
D. None of these
Flow rate measurement of hostile acids and alkalis can be most suitably done by a/an ________________?
A. Venturimeter
B. Orificemeter
C. Magnetic flow meter
D. Hot wire anemometer
Load cells are used for the measurement of __________________?
A. Stress
B. Weight
C. Strain
D. Velocity
All the thermocouples used for temperature measurement use dissimilar metal ________________?
A. Strips
B. Bars
C. Wires
D. Beads
Select the correct statement from the following?
A. The frequency response of a pure capacity process is unbounded
B. The phase lag of a pure time delay system decreases with increasing frequency
C. The amplitude ratio of a pure capacity process is inversely proportional to frequency
D. The amplitude ratio of a pure time delay system increases with frequency
Transfer function of transportation lag is___________________?
A. eTS
B. e-TS
C. 1/(Ts + 1)
D. None of these
Range of hydrogen gas constant volume thermometer is _____________ °C?
A. -10 to 20
B. 0 to 100
C. 100 – 500
D. 400 – 1000
The unit step response of the transfer function (2s – 1)/[(3s + 1) (4s + 1)] reaches its final steady state asymptotically after _____________?
A. A monotonic increase
B. A monotonic decrease
C. Initially increasing and then decreasing
D. Increasing decreasing and then increasing
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