Chemical Engineering - Chemical Engineering Basics

46.
On-off control
fully opens the final control element, when the measured variable is below the set point.
fully closes the final control element, when the measured variable is above the set point.
is a two position control (fully open or fully closed) control adequate to control a process with slow reaction and minimum dead time or transfer lag.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

47.
The tensile load-elongation curve of a metal does not describe
work hardening
yield stress
anisotropy index
necking strain
Answer: Option
Explanation:
No answer description is available. Let's discuss.

48.
Usual value of the resistance suitable for a wire resistance strain gauge is __________ ohms.
20
80
120
500
Answer: Option
Explanation:
No answer description is available. Let's discuss.

49.
Permanent set in a material is produced by subjecting it to
triaxial loading.
fatigue loading.
stresses beyond the elastic limit.
tensile & compressive loads simultaneously.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

50.
The following is a typical anionic collector used in flotation.
Ethyl dixanthogen.
Trimethyl cetyl ammonium bromide.
Potassium ethyl xanthate.
lAuryl amine hydrochloride.
Answer: Option
Explanation:
No answer description is available. Let's discuss.