831. What is the unit of kinematic viscosity in SI unit ?
A. M2/sec
B. N/m2. sec
C. Kg. sec/m
D. None of these

832. For a given Reynolds number, in a hydraulically smooth pipe, further smoothening ____________ the friction factor?
A. Brings about no further reduction of
B. Increases
C. Decreases
D. None of these

833. A compressor that takes suction at a pressure below atmospheric and discharge against atmospheric pressure is called a ____________ pump?
A. Sump
B. Volute
C. Vacuum
D. Submerged

834. In case of a centrifugal pump, the theoretical head developed is dependent on the _____________ the impeller?
A. Speed of
B. Diameter of
C. Fluid velocity leaving
D. All A., B. and C.

835. For a stable equilibrium of a submerged body (where, G and B are centres of gravity & buoyancy respectively) ?
A. G is above B
B. B is above G
C. B & G coincide
D. None of these

836. Which of the following has the maximum compression ratio ?
A. Blower
B. Compressor
C. Vacuum pump
D. Fan

837. Piezometric head is the sum of the ______________ heads?
A. Elevation & kinetic energy
B. Elevation & pressure
C. Kinetic energy & pressure
D. None of these

838. Which of the following exemplifies a three dimensional fluid flow ?
A. Fluid flow at the inlet to a nozzle
B. Fluid flow between parallel plates
C. Viscous fluid flow between converging plates
D. None of these

839. Which law is followed by the velocity distribution in the turbulent boundary layer ?
A. Parabolic law
B. Linear law
C. Logarithmic law
D. None of these

840. In case of turbulent flow of a Newtonian fluid in a straight pipe, the maximum velocity is equal to (where, Vavg = average fluid velocity)?
A. Vavg
B. 1.2 Vavg
C. 1.5 Vavg
D. 1.8 Vavg

NOTE
IF YOU THINK ANY OF THE MCQ ABOVE IS WRONG.
PLEASE COMMENT WITH CORRECT ANSWER AND ITS DETAIL EXPLANATION IN COMMENT BOX.
THANK YOU

Leave a Reply