Fluid Mechanics - Part 1 Online Exam Quiz
Fluid Mechanics - Part 1 GK Quiz. Question and Answers related to Fluid Mechanics - Part 1. MCQ (Multiple Choice Questions with answers about Fluid Mechanics - Part 1
The fluid property, due to which, mercury does not wet the glass is
A : surface tension
B : viscosity
C : cohesion
D : adhesion
Laminar flow of a Newtonion fluid ceases to exist, when the Reynolds number exceeds
A : 4000
B : 2100
C : 1500
D : 3000
When the momentum of one fluid is used for moving another fluid, such a device is called a/an
A : jet pump
B : blower
C : acid egg
D : none of these
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.
Head developed by a centrifugal pump depends on its
A : speed
B : impeller diameter
C : both (a) and (b)
D : neither (a) nor (b)
Hydraulic mean depth ( D m ) for a circular pipe of diameter 'D' flowing full is 0.25 D. For a circular channel, at D m = 0.3 D, gives the condition for the maximum
A : flow rate
B : mean velocity
C : both 'a' & 'b'
D : neither 'a' nor 'b'
The head loss in turbulent flow in a pipe varies
A : as velocity
B : as (velocity) 2
C : inversely as the square of diameter
D : inversely as the velocity
Most commonly used joint in the underground pipe lines is the
A : sleevejoint
B : coupling
C : flange
D : expansion joint
Schedule number of a pipe, which is a measure of its wall thickness, is given by
A : 1000 P'/S
B : 100 P'/S
C : 1000 S/P'
D : 10000 P'/S
The net positive suction head (NPSH) of a centrifugal pump is defined as the sum of the velocity head and the pressure head at the
A : discharge.
B : suction.
C : suction minus vapor pressure of the liquid at suction temperature.
D : discharge minus vapor pressure of the liquid at the discharge temperature.
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