Water hammer is caused in steam carrying pipelines, because of ______________________?
A. Partial condensation of steam
B. Vibration of the pipeline
C. High degree of superheat of steam
D. Its exposure to torrential rain
A. Partial condensation of steam
B. Vibration of the pipeline
C. High degree of superheat of steam
D. Its exposure to torrential rain
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
A. The continuous adjustment of the set point index of an automatic control loop by a primary(master) controller
B. Used when changes in process conditions cause serious upsets in the controlled variable
C. Useful to control flow from temperature
D. All A, B & C
A. Outside
B. Inside
C. Mean
D. None of these
A. 1 stoke = 1 cm2/sec
B. 1 N.sec/m2 = 10 paise
C. 1 stoke = 1 m2/sec
D. 1 m2/sec = 104 stokes
A. Petrol
B. LPG
C. Light hydrocarbon gases (e.g. butane or propane)
D. None of these
A. Increase the heat loss
B. Decrease heat loss and will have no effect beyond that
C. Decrease heat flux
D. Reduce convection heat loss compared to conduction heat less