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Process Control and Instrumentation

Process Control and Instrumentation
Pressure of 0.0001 absolute psi can be measured by __________ gauge

Mcloid
None of these
Pirani
Thermocouple

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Process Control and Instrumentation
The transfer function of a process is 1/(16s² + 8s + 4). If a step change is introduced into the system, then the response will be

Over damped
Under damped
None of these
Critically damped

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Process Control and Instrumentation
The unit of 'time constant' of a system is the same as that of

None of these
Velocity
(time)⁻¹
Time

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Process Control and Instrumentation
Which of the following controllers has the least maximum deviation?

P-I-D controller
P-D controller
P-controller
P-I controller

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Process Control and Instrumentation
Mercury thermometer is commonly used for low temperature measruement. The freezing point and boiling point of mercury are respectively __________ °C.

- 39 and 350
- 79 and 395
- 51 and 439
- 10 and 425

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Process Control and Instrumentation
Response of a linear control system for a change in set point is called

Regulator problem
Transient response
Frequency response
Servo problem

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