Home > Mechanical Engineering > Process Instrumentation and Control

Process Instrumentation and Control - Interview Questions and Answers

Prepare for your technical interview with these Process Instrumentation and Control questions.

Ready to test your skills?

Take a timed mock test specifically for Process Instrumentation and Control.

Start Mock Test
91. An apparatus which measures the value of a quantity or condition which is subject to change with time, and operates to maintain within limits this measured value, is called
A. automatic regulator
B. self controller
C. feedback controller
D. two-position controller
E. floating regulator.
Explanation:
92. Machine health monitoring is mainly based on measurement of:
A. lub oil pressure
B. vibrations at strategic points
C. bearing temperature measurement
D. efficiency and losses of machine
E. all of above.
Explanation:
93. Continuous analysers for measuring following are based on the chemiluminescent flameless reaction with ethylene :
A. oxygen
B. ozone
C. sulphur oxides
D. nitrogen oxides
E. pollutants.
Explanation:
94. The time required for the controlled variable to reach a specified value after the application of a step input is called :
A. rise time
B. settling time
C. response time
D. peak time
E. proportional time.
Explanation:
95. The error caused in vibration measuring equipment due to non compliance (not stiff) of bond made between sensor and the surface it is mounted is called :
A. cross-coupling
B. coupling compliance
C. influence error
D. subject loading by sensor
E. spurious variation in capacitance.
Explanation:
« Prev12345678910111213141516171819202122Next »