Chemical Engineering - Process Control and Instrumentation
Exercise :: Process Control and Instrumentation - Section 1
11.
Typical specifications for design stipulates the gain margin and phase margin to be respectively
A. > 1.7 and > 30° B. < 1.7 and > 30° C. < 1.7 and < 30° D. > 1.7 and < 30°
Answer: Option A
Explanation:
12.
Working principle of radiation pyrometer is based on the
A. Wien's law B. Kirchoffs law C. Stafan-Boltzman law D. Seebeck effect
Answer: Option C
Explanation:
13.
Which of the following relates the emf. generated in a single homogeneous wire to the temperature difference ?
A. Peltier effect B. Thomson effect C. Seebeck effect D. none of these
Answer: Option B
Explanation:
14.
Dilute wine was used as a thermometric liquid initially to develop temperature scale. First emperical temperature scale developed was the __________ scale.
A. Kelvin B. Centigrade C. Fahrenheit D. Reaumer
Answer: Option C
Explanation:
15.
In a single tank system, the transfer function of level to inlet flow rate is
Answer: Option B
Explanation:
