Process Control and Instrumentation

The amplitude ratio for the sinusoidal response of __________ is < 1?

Byadmin March 5, 2019August 24, 2021

The amplitude ratio for the sinusoidal response of __________ is < 1?

A. Transportation lag
B. First order system
C. Second order system
D. None of these

Process Control and Instrumentation

A bimetallic thermometer as compared to industrial mercury in glass thermometer has almost the same_________________?

A bimetallic thermometer as compared to industrial mercury in glass thermometer has almost the same_________________?

A. Temperature measuring range (- 40°C to 450°C)
B. Accuracy (± 1% of span)
C. Speed of response
D. All a, b & c

Read More A bimetallic thermometer as compared to industrial mercury in glass thermometer has almost the same_________________?
Process Control and Instrumentation

The closed loop pole of a stable second order system could be_______________?

The closed loop pole of a stable second order system could be_______________?

A. Both real and positive
B. Complex conjugate with positive real parts
C. Both real and negative
D. One real positive and the other real negative

Read More The closed loop pole of a stable second order system could be_______________?
Process Control and Instrumentation

Ordinary mercury in glass thermometer is used for measuring temperature upto 120°C. However, for measuring higher temperature upto __________ °C, thermometer is made by filling nitrogen under pressure above the mercury, which stops the evaporation of mercury and reduces the chance of broken thread of mercury?

Ordinary mercury in glass thermometer is used for measuring temperature upto 120°C. However, for measuring higher temperature upto __________ °C, thermometer is made by filling nitrogen under pressure above the mercury, which stops the evaporation of mercury and reduces the chance of broken thread of mercury?

A. 250
B. 350
C. 550
D. 700

Read More Ordinary mercury in glass thermometer is used for measuring temperature upto 120°C. However, for measuring higher temperature upto __________ °C, thermometer is made by filling nitrogen under pressure above the mercury, which stops the evaporation of mercury and reduces the chance of broken thread of mercury?
Process Control and Instrumentation

Strain gage uses an electrical conductor wire, which when elastically stretched increases in length and reduces in diameter. Both these dimensional changes result in ____________ in the electrical resistance of the wire ?

Strain gage uses an electrical conductor wire, which when elastically stretched increases in length and reduces in diameter. Both these dimensional changes result in ____________ in the electrical resistance of the wire ?

A. No change
B. Decrease
C. Increase
D. Exponential decrease

Read More Strain gage uses an electrical conductor wire, which when elastically stretched increases in length and reduces in diameter. Both these dimensional changes result in ____________ in the electrical resistance of the wire ?
Process Control and Instrumentation

Turbine flow meters are suitable for_________________?

Turbine flow meters are suitable for_________________?

A. Very limited flow ranges
B. Cryogenic flow measurements
C. Aerospace and in air borne applications
D. Both B. and C.

Read More Turbine flow meters are suitable for_________________?
Process Control and Instrumentation

Operating range of a temperature measuring instrument is 800 to 1600°C. It could be a/an _____________ pyrometer?

Operating range of a temperature measuring instrument is 800 to 1600°C. It could be a/an _____________ pyrometer?

A. Radiation
B. Optical
C. Photoelectric
D. None of these

Read More Operating range of a temperature measuring instrument is 800 to 1600°C. It could be a/an _____________ pyrometer?

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