Process Control and Instrumentation

Which of the following thermocouple materials does not contain nickel ?

Byadmin March 5, 2019August 24, 2021

Which of the following thermocouple materials does not contain nickel ?

A. Alumel
B. Chromel
C. Constantan
D. None of these

Process Control and Instrumentation

Stalagmometer is used for the measurement of__________________?

Stalagmometer is used for the measurement of__________________?

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

Read More Stalagmometer is used for the measurement of__________________?
Process Control and Instrumentation

The root locus plot of the roots of the characteristics equation of a closed loop system having the open loop transfer function K (s + 1)/[2 (2s + 1) (3s + 1)] will have a definite number of loci for variation of K from 0 to ∞. The number of loci is_______________?

The root locus plot of the roots of the characteristics equation of a closed loop system having the open loop transfer function K (s + 1)/[2 (2s + 1) (3s + 1)] will have a definite number of loci for variation of K from 0 to ∞. The number of loci is_______________?

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

Read More The root locus plot of the roots of the characteristics equation of a closed loop system having the open loop transfer function K (s + 1)/[2 (2s + 1) (3s + 1)] will have a definite number of loci for variation of K from 0 to ∞. The number of loci is_______________?
Process Control and Instrumentation

The temperature of tempering oil baths maintained at 400°C during heat treatment of steel is measured by a/an _____________ thermocouple?

The temperature of tempering oil baths maintained at 400°C during heat treatment of steel is measured by a/an _____________ thermocouple?

A. Chromel-alumel
B. Iron-constantan
C. Platinum-platinum/rhodium
D. None of these

Read More The temperature of tempering oil baths maintained at 400°C during heat treatment of steel is measured by a/an _____________ thermocouple?
Process Control and Instrumentation

Flow rate through an orifice is _____________ the pressure differential?

Flow rate through an orifice is _____________ the pressure differential?

A. Proportional to
B. Inversely proportional to the square root of
C. Proportional to the square root of
D. Inversely proportional to the square of

Read More Flow rate through an orifice is _____________ the pressure differential?
Process Control and Instrumentation

Which of the following judges the accuracy of an instrument ?

Which of the following judges the accuracy of an instrument ?

A. Dead zone
B. Drift
C. Static error
D. None of these

Read More Which of the following judges the accuracy of an instrument ?
Process Control and Instrumentation

Flapper nozzle is used in a/an ______________ controller?

Flapper nozzle is used in a/an ______________ controller?

A. Electronic
B. Hydraulic
C. Pneumatic
D. None of these

Read More Flapper nozzle is used in a/an ______________ controller?

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