Chemical Engineering MCQs

6108 MCQs  (Page 407 of 611)

The normal stress is the same in all directions at a point in a fluid, when the fluid is__________________?
A. Non-viscous
B. Incompressible
C. Both a. and b.
D. Having no motion of one fluid layer relative to the other
Acceleration head in a reciprocating pump_______________________?
A. Increases the work done during delivery stroke
B. Decreases the work done during suction stroke
C. Does not change the work requirement of the pump
D. Increases the work done during suction stroke
One horsepower is equal to________________?
A. 550 lbf.ft/second
B. 550 kgf.m/second
C. Both a. and b.
D. 550 lbf.ft./hr
An ideal nozzle design aims at________________?
A. Minimising wall friction
B. Suppressing boundary layer separation
C. Both a. & b.
D. Neither a. nor b.
The bulk modulus of elasticity of a liquid__________________?
A. Is zero for incompressible liquid
B. Decreases with pressure
C. Is independent of temperature & pressure
D. Increases with pressure