Skip to content
  • Home
  • Contact Us / Report Error
  • Disclaimer

Process Control and Instrumentation

The transfer function for a PID controller is (where, η i is the integral (reset) time and ηD is the derivative time.) ?

August 24, 2021March 5, 2019 by admin
The transfer function for a PID controller is (where, η i is the integral (reset) time and ηD is the derivative time.) ?

A. Kc(1 + ηis + ηD ). s
B. Kc[1 + (1/ηis) + ηD . s)
C. Kc(1 + ηis + (1/ηD . s)
D. None of these

Categories Process Control and Instrumentation

Stalagmometer is used for the measurement of__________________?

August 24, 2021March 5, 2019 by admin
Stalagmometer is used for the measurement of__________________?

A. Kinematic viscosity
B. Surface tension
C. Refractive index
D. Optical activity

Categories Process Control and Instrumentation

Gas analysis is commonly done using the___________________?

August 24, 2021March 5, 2019 by admin
Gas analysis is commonly done using the___________________?

A. Thermal conductivity cell
B. X-ray diffraction
C. Mass spectrometer
D. Emission spectrometer

Categories Process Control and Instrumentation

Load cells are used for the measurement of __________________?

August 24, 2021March 5, 2019 by admin
Load cells are used for the measurement of __________________?

A. Stress
B. Weight
C. Strain
D. Velocity

Categories Process Control and Instrumentation

Turbine flow meters are suitable for_________________?

August 24, 2021March 5, 2019 by admin
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.

Categories Process Control and Instrumentation

Out of the following thermocouple wire insulating material, the highest temperature rating is for________________?

August 24, 2021March 5, 2019 by admin
Out of the following thermocouple wire insulating material, the highest temperature rating is for________________?

A. Teflon
B. Ceramic fibre
C. Asbestos
D. Fibre glass

Categories Process Control and Instrumentation

Which of the following controllers has the least maximum deviation ?

August 24, 2021March 5, 2019 by admin
Which of the following controllers has the least maximum deviation ?

A. P-controller
B. P-I controller
C. P-I-D controller
D. P-D controller

Categories Process Control and Instrumentation

For increased speed of response of an expansion pressure spring thermometer, the thermometer bulb should have a__________________?

August 24, 2021March 5, 2019 by admin
For increased speed of response of an expansion pressure spring thermometer, the thermometer bulb should have a__________________?

A. Large area but small mass
B. High thermal conductivity
C. Small specific heat
D. All A , B & C

Categories Process Control and Instrumentation

Liquid levels in autoclaves are measured by ________________?

August 24, 2021March 5, 2019 by admin
Liquid levels in autoclaves are measured by ________________?

A. Simple float
B. Differential float type manometer
C. Glass gauge
D. None of these

Categories Process Control and Instrumentation

Which of the following is the dynamic characteristics of an instrument ?

August 24, 2021March 5, 2019 by admin
Which of the following is the dynamic characteristics of an instrument ?

A. Reproducibility
B. Sensitivity
C. Dead zone
D. Fidelity

Categories Process Control and Instrumentation
Older posts
Newer posts
← Previous Page1 … Page12 Page13 Page14 … Page32 Next →
© 2025 • Built with GeneratePress