Process Control and Instrumentation

A negative gain margin expressed in decibels means a/an ____________ system?

Byadmin March 5, 2019August 24, 2021

A negative gain margin expressed in decibels means a/an ____________ system?

A. Stable
B. Unstable
C. Critically damped
D. None of these

Process Control and Instrumentation

Compositional analysis of flue gas coming out of a furnace in respect of O2 and CO2% can be continuously done by a/an___________________?

Compositional analysis of flue gas coming out of a furnace in respect of O2 and CO2% can be continuously done by a/an___________________?

A. Orsat apparatus
B. Thermal conductivity cell
C. Zirconia probe
D. Chromatograph

Read More Compositional analysis of flue gas coming out of a furnace in respect of O2 and CO2% can be continuously done by a/an___________________?
Process Control and Instrumentation

Load cells are used for the measurement of __________________?

Load cells are used for the measurement of __________________?

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

Read More Load cells are used for the measurement of __________________?
Process Control and Instrumentation

In an exothermic chemical reactor, the manipulated variable is the flow rate of_______________?

In an exothermic chemical reactor, the manipulated variable is the flow rate of_______________?

A. Coolant
B. Reactants
C. Product
D. None of these

Read More In an exothermic chemical reactor, the manipulated variable is the flow rate of_______________?
Process Control and Instrumentation

Out of the following temperature measuring instruments, the measurement accuracy will be minimum for the ________________?

Out of the following temperature measuring instruments, the measurement accuracy will be minimum for the ________________?

A. Mercury in glass thermometer
B. Optical pyrometer
C. Iron-constantan thermocouple
D. Alcohol filled thermometer

Read More Out of the following temperature measuring instruments, the measurement accuracy will be minimum for the ________________?
Process Control and Instrumentation

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

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

Read More For increased speed of response of an expansion pressure spring thermometer, the thermometer bulb should have a__________________?
Process Control and Instrumentation

Pressure of 0.01 psi (absolute) can be measured by ______________ gauge?

Pressure of 0.01 psi (absolute) can be measured by ______________ gauge?

A. Ionisation
B. Pirani
C. Mcleod
D. None of these

Read More Pressure of 0.01 psi (absolute) can be measured by ______________ gauge?

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