Fluid Mechanics - Study Mode
[#221] An ideal plastic substance indicates no deformation, when stressed upto yield stress, but behaves like a Newtonion fluid beyond yield stress. Which of the following is an ideal plastic?
Correct Answer
(A) Sewage sludge
[#222] Nominal size of the discharge pipe of a pump is usually __________ the nominal size of the inlet pipe.
Correct Answer
(A) Smaller than
[#223] Centrifugal pumps as compared to reciprocating pumps
Correct Answer
(D) Can be run with discharge line valve closed for a short interval
[#224] Maintenance cost of a __________ pump for a particular duty is the least.
Correct Answer
(A) Centrifugal
[#225] Vena-contracta pressure tapping is at a distance __________ from the position of an orificemeter fitted in a pipe of internal diameter 'd'
Correct Answer
(B) 0.5d