Fluid Mechanics MCQ Questions
1-The maximum contraction takes place at a section slightly on the downstream side of the orifice, where the jet of water is more or less horizontal. Such a section is known as
(A) Mouth piece
(B) Orifice
(C) Cross section
(D) Vena contracta
2-Which of the following is used to measure the difference in pressure between two points in a pipe, or in two different pipes?
(A) Single Column Manometer
(B) Piezometer
(C) Differential Manometer
(D) Simple Manometer
3-The pump which raises the water or liquid from a lower level to a higher level by the action of centrifugal force is known as
(A) Jet pump
(B) Vane pump
(C) Reciprocating pump
(D) Centrifugal pump
4-The non-clog pump is
(A) semi closed impeller pump
(B) open impeller pump
(C) semi-open impeller pump
(D) closed impeller pump
5-Pump is a machine which converts
(A) Electrical energy into Pressure energy
(B) Mechanical energy into Electrical energy
(C) Mechanical energy into Pressure energy
(D) Pressure energy into Mechanical energy
6-The pressure head of liquid is
(A) h = p/wg
(B) h = p/w
(C) h = p.w
(D) h = w/p
7-The intensity of pressure ‘p’ is related to specific weight ‘W’ of the liquid and vertical depth ‘h’ of the point by the equation
(A) p = Wh3
(B) p = Wh2
(C) h = pW
(D) p = Wh
8-With respect to reciprocating pump which of the following statements is incorrect?
(A) It is suited for small capacities and high heads
(B) It is suited for relatively high capacities and high heads
(C) It is obsolete owing to their high capital cost as well as maintenance cost
(D) The reciprocating pump is a positive displacement pup
9-A channel without any cover at the top is known as
(A) Prismatic channel
(B) Open channel
(C) Artificial channel
(D) Natural channel
10-Which one of the following mouthpiece is not under the classification based on the shape of the mouthpiece?
(A) rectangular mouthpiece
(B) convergent-divergent mouthpiece
(C) convergent mouthpiece
(D) cylindrical mouthpiece
ANSWERS:
1-(D), 2-(C), 3-(D), 4-(C), 5-(C), 6-(B), 7-(D), 8-(B), 9-(B), 10-(A)