A. Cd = Cc/Cv
B. Cd = Cc.Cv
C. Cd = Cv/ Cc
D. None of these
Related Mcqs:
- Co-efficient of discharge (Cd) is defined as actual discharge/theoretical discharge and is equal to Cc . Cv; where Cc = Co-efficient of contraction and Cv = co-efficient of velocity. Cd of an orifice is usually about__________________?
A. 0.42
B. 0.62
C. 0.82
D. 0.98 - What is the co-efficient of contraction, if a fluid jet discharging from a 50 mm diameter orifice has a 40 mm diameter at its vena-contracta ?
A. 0.64
B. 1.65
C. 0.32
D. 0.94 - The actual velocity at vena-contracta for flow through an orifice from a reservoir is given by_____________________?
A. Cv . √(2gH)
B. Cc . √(2gH)
C. Cd . √(2gH)
D. Cv . Va - For flow through an orifice from a reservoir, the actual velocity at the vena contracta is given by _________________?
A. √(2gh)
B. C.V. √(2gh)
C. Cd √(2gh)
D. Cc √(2gh) - The ratio of actual discharge to theoretical discharge through an orifice is equal to______________?
A. Cc . Cv
B. Cc . Cd
C. Cv . Cd
D. Cd/Cv - The fluid jet discharging from a 2″ diameter orifice has a diameter of 1.75″ at its venacontracta. The co-efficient of contraction is___________________?
A. 1.3
B. 0.766
C. 0.87
D. None of these - Vena-contracta formed during flow of a liquid through an orificemeter has__________________?
A. Minimum liquid cross-section
B. More diameter compared to orifice diameter
C. Minimum velocity of fluid stream
D. None of these - Vena-contracta pressure tapping is at a distance _______________ from the position of an orificemeter fitted in a pipe of internal diameter ‘d’ ?
A. d
B. 0.5 d
C. 2d
D. 4d - Location of vena-contracta in an orificemeter does not depend upon the________________?
A. Type of orifice
B. Density, viscosity & compressibility of the fluid
C. Ratio of pipe diameter to orifice diameter
D. Pipe roughness - The percentage slip in a reciprocating pump set is given by the % of (where, Q1 = actual discharge Q2 = theoretical discharge) ?
A. Q1/Q2
B. Q2/Q1
C. (Q2 – Q1)/Q1
D. (Q2 – Q1)/Q2
