Q.1) Flow of fluid takes place due to its :
A) Viscosity
B) Compressibility
C) Surface Tension
D) Deformation under shear force
Option (D)
Q.2) Bulk Modulus of fluid is the ratio of :
A) Shear stress to shear strain
B) Increase in volume to the viscosity of fluid
C) Increase in pressure to the volumetric strain
D) Critical velocity to the velocity of fluid
Option (C)
Q.3) The buoyancy depends upon the :
A) Pressure with which the liquid is displaced
B) Weight of liquid displaced
C) Viscosity of liquid
D) Compressibility of liquid
Option (B)
Q.4) The resultant upward pressure of the fluid on an immersed body is called –
A) Upthrust
B) Buoyancy
C) Centre of Pressure
D) All of the above
Option (B)
Q.5) The property of fluid by virtue of which it offers resistance to shear is called –
A) Surface Tension
B) Adhesion
C) Cohesion
D) Viscosity
Option (D)
Q.6) The atmospheric pressure with rise in altitude decreases –
A) Linearly
B) First slowly then steeply
C) First steeply and then gradually
D) Unpredictable
Option (B)
Q.7) Barometer is used to measure –
A) Pressure in pipes, channels etc.
B) Atmospheric pressure
C) Very low pressure
D) Difference of pressure between two points
Option (B)
Q.8) A fluid whose viscosity does not change with the rate of deformation or shear strain is known as –
A) Real fluid
B) Newtonian fluid
C) Ideal fluid
D) Non-Newtonian fluid
Option (B)
Q.9) Newton’s law of viscosity is a relationship between –
A) Pressure, velocity and temperature
B) Shear stress and rate of shear strain
C) Shear stress and velocity
D) Rate of shear strain and temperature
Option (B)
Q.10) A liquid would wet the solid, if adhesion forces as compared to cohesion forces are –
A) Less
B) More
C) Equal
D) Less at low temperature and more at high temperature
Option (B)
Q.11) On increasing the temperature of a liquid, the viscosity of the liquid –
A) Decrease
B) Increase
C) First decrease and then increase
D) Remains same
Option (A)
Q.12) The Pitot Tube is used to measure :
A) Velocity at stagnation point
B) Stagnation pressure
C) Static pressure
D) Dynamic pressure
Option (A)
Q.13) Each term of the Bernoulli’s equation represents –
A) Energy per unit weight
B) Energy per unit mass
C) Energy per unit volume
D) Specific energy
Option (A)
Q.14) Steady flow occurs when –
A) Conditions change steadily with time
B) Conditions do not change with time at any point
C) Conditions are same at adjacent points with time
D) Velocity vector at any point remains constant
Option (B)
Q.15) When the water drawn from the central hole made in wash hand basin, the type of flow water is –
A) Forced vortex
B) Free vortex
C) Tangential vortex
D) Transitional vortex
Option (B)
Q.16) Which of the following is responsible for the separation of boundary layer?
A) Positive pressure gradient
B) High viscosity of fluid
C) Low viscosity of fluid
D) None of the above
Option (A)
Q.17) Which of the following instrument is used for measuring the discharge?
A) Current Meter
B) Manometer
C) Vane Anemometer
D) Venturimeter
Option (D)
Q.18) If at the particular instant of time, the velocity of flow does not change with location over a specific region, the flow is called –
A) Steady flow
B) Unsteady flow
C) Uniform flow
D) Non-uniform flow
Option (C)
Q.19) Which of the following is measured with the help of elbow meter?
A) Discharge
B) Velocity
C) Pressure
D) Surface Tension
Option (A)
Q.20) Which of the following is measured with the help of hot wire anemometer?
A) Velocity coefficient
B) Surface Tension
C) Viscosity
D) Velocity of fluid
Option (D)
