7000+ Fluid Mechanics and Hydraulics Questions & Answers Pdf - 1

Question: 1

Density in terms of viscosity is

(A) $${Kinematic viscosity}/{Dynamic viscosity}$$

(B) Kinematic viscosity x dynamic viscosity

(C) $${Dynamic viscosity}/{Kinematic viscosity}$$

(D) Any of the above

Question: 2

Which type of pump is different from the others?

(A) Centrifugal pump

(B) Piston pump

(C) Plunger pump

(D) Simplex pump

Question: 3

The ratio between inertial forces and the square root of pressure forces is known as

(A) Mach number

(B) Froude number

(C) Weber number

(D) Euler number

Question: 4

The locus of elevations that water will rise in a series of pitot tube is called

(A) Velocity head

(B) Energy grade line

(C) Pressure head

(D) Hydraulic grade line

Question: 5

Mach number is significant in

(A) Flow in air at speeds more than that of sound

(B) Flow of metallic fluids

(C) Flow of highly viscous fluids

(D) High speed flow of water