Mechanical Engineering · all questions

Hydraulics And Fluid Mechanics
practice.

Practice every MCQ with options. Use Show answers when you want the correct option and solution.

684

Questions

32/35

Page

Pick an option on a question to see the right answer and solution.

Q621

The volumetric change of the fluid caused by a resistance is known as

Select an option to see the answer and solution.

Q622

The discharge over a rectangular notch is

Select an option to see the answer and solution.

Q623

The flow in which the particles of a fluid attain such velocities that varies from point to point in magnitude and direction as well as from instant to instant, is known as

Select an option to see the answer and solution.

Q624

The flow in which the velocity vector is identical in magnitude and direction at every point, for any given instant, is known as

Select an option to see the answer and solution.

Q625

The specific weight of water is 1000 kg/m³

Select an option to see the answer and solution.

Q626

Density of water is maximum at

Select an option to see the answer and solution.

Q627

The total pressure on the surface of a vertical sluice gate 2 m x 1 m with its top 2 m surface being 0.5 m below the water level will be

Select an option to see the answer and solution.

Q628

Euler's dimensionless number relates the following

Select an option to see the answer and solution.

Q629

The force per unit length is the unit of

Select an option to see the answer and solution.

Q630

A water tank contains 1.3 m deep water. The pressure exerted by the water per metre length of the tank is

Select an option to see the answer and solution.

Q631

Guide angle as per the aerofoil theory of Kaplan turbine blade design is defined as the angle between

Select an option to see the answer and solution.

Q632

Which of the following hydraulic unit is used for transmitting increased or decreased torque to the driven shaft?

Select an option to see the answer and solution.

Q633

The hydraulic efficiency of an impulse turbine is maximum when velocity of wheel is _______ of the jet velocity,

Select an option to see the answer and solution.

Q634

In a forced vortex, the velocity of flow everywhere within the fluid is

Select an option to see the answer and solution.

Q635

The maximum efficiency of transmission through a pipe is

Select an option to see the answer and solution.

Q636

The units of kinematic viscosity are

Select an option to see the answer and solution.

Q637

The efficiency of power transmission through pipe is (where H = Total supply head and h_f = Head lost due to friction in the pipe)

Select an option to see the answer and solution.

Q638

Cavitation is caused by

Select an option to see the answer and solution.

Q639

An open tank containing liquid is moving with an acceleration on an inclined plane. The inclination of the free surface of the liquid will be __________ to the acceleration of the tank.

Select an option to see the answer and solution.

Q640

The pressure of fluid due to hammer blow is

Select an option to see the answer and solution.

Prev 30 31 32 33 34 Next