Vidyalelo
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

18/35

Page

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

Discharge of a centrifugal pump is (where N = Speed of the pump impeller)

Select an option to see the answer and solution.

A Pelton wheel working under a constant head and discharge, has maximum efficiency when the speed ratio is

Select an option to see the answer and solution.

When a vertical wall is subjected to pressures due to liquid on both sides, the resultant pressure is the __________ of the two pressures.

Select an option to see the answer and solution.

The speed of an imaginary turbine, identical with the given turbine, which will develop a unit power under a unit head, is known as

Select an option to see the answer and solution.

The overall efficiency for a Pelton wheel lies between

Select an option to see the answer and solution.

A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall per unit length is (where w = Specific weight of liquid and H = Height of liquid)

Select an option to see the answer and solution.

A liquid would wet the solid, if adhesion forces as compared to cohesion forces are

Select an option to see the answer and solution.

Which of the following manometer has highest sensitivity?

Select an option to see the answer and solution.

The viscosity of a liquid __________ its rate of flow through a hole in a vessel.

Select an option to see the answer and solution.

A uniform body 3 m long, 2 m wide and 1 m deep floats in water. If the depth of immersion is 0.6 m, then the weight of the body is

Select an option to see the answer and solution.

The water pressure per metre length on a vertical masonry wall of dam is (where w = Specific weight of the liquid and H = Height of the liquid)

Select an option to see the answer and solution.

The cavitation in a hydraulic machine

Select an option to see the answer and solution.

The discharge over a triangular notch is

Select an option to see the answer and solution.

The time oscillation of a floating body with increase in meatcentric height will be

Select an option to see the answer and solution.

If the surface of liquid is convex, men

Select an option to see the answer and solution.

The coefficient of discharge for an external mouthpiece depends upon

Select an option to see the answer and solution.

The value of coefficient of discharge is __________ the value of coefficient of velocity.

Select an option to see the answer and solution.

The pressure of a liquid measured with the help of a Piezometer tube is

Select an option to see the answer and solution.

A body floating in a liquid is said to be in neutral equilibrium, if its metacentre

Select an option to see the answer and solution.

A pipe of length more than double the diameter of orifice fitted externally or internally to the orifice is called a

Select an option to see the answer and solution.