Process Control and Instrumentation

Which of the following is not a variable area flow meter ?

Byadmin March 5, 2019August 24, 2021

Which of the following is not a variable area flow meter ?

A. Piston type meter
B. Rotameter
C. Magnetic flow meter
D. Orifice and tapered plug meter

Process Control and Instrumentation

A photo electric device in which the resistance of the metal is directly proportional to the light striking on it, is known as photo-conductive cell. Photoelectric transducers are used for the measurement of those parameters, which can be used to produce variation in_______________?

A photo electric device in which the resistance of the metal is directly proportional to the light striking on it, is known as photo-conductive cell. Photoelectric transducers are used for the measurement of those parameters, which can be used to produce variation in_______________?

A. Light intensity
B. Current
C. Flux density
D. Voltage

Read More A photo electric device in which the resistance of the metal is directly proportional to the light striking on it, is known as photo-conductive cell. Photoelectric transducers are used for the measurement of those parameters, which can be used to produce variation in_______________?
Process Control and Instrumentation

Hot wire anemometer is used for the measurement of___________________?

Hot wire anemometer is used for the measurement of___________________?

A. Flow rates of fluids
B. Flow rates of granular solids
C. Very high temperature
D. Thermal conductivity of gases

Read More Hot wire anemometer is used for the measurement of___________________?
Process Control and Instrumentation

Mercury thermometer can be used to measure the temperature upto ____________ °C?

Mercury thermometer can be used to measure the temperature upto ____________ °C?

A. 100
B. 250
C. 350
D. 750

Read More Mercury thermometer can be used to measure the temperature upto ____________ °C?
Process Control and Instrumentation

Starting temperature of optical radiation pyrometer is ______________ °C?

Starting temperature of optical radiation pyrometer is ______________ °C?

A. 800
B. 400
C. 1200
D. 1500

Read More Starting temperature of optical radiation pyrometer is ______________ °C?
Process Control and Instrumentation

Water is flowing through a series of four tanks and getting heated as shown in figure. It is desired to design a cascade control scheme for controlling the temperature of water leaving the tank 4 as there is a disturbance in the temperature of a second stream entering the tank 2. Select the best place to take the secondary measurement for the second loop?

Water is flowing through a series of four tanks and getting heated as shown in figure. It is desired to design a cascade control scheme for controlling the temperature of water leaving the tank 4 as there is a disturbance in the temperature of a second stream entering the tank 2. Select the best place to take the secondary measurement for the second loop?

A. Tank 1
B. Tank 2
C. Tank 3
D. Tank 4

Read More Water is flowing through a series of four tanks and getting heated as shown in figure. It is desired to design a cascade control scheme for controlling the temperature of water leaving the tank 4 as there is a disturbance in the temperature of a second stream entering the tank 2. Select the best place to take the secondary measurement for the second loop?
Process Control and Instrumentation

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

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

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

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