Civil Engineering Mcqs Practice Test

Question 1

The equation of continuity holds good when the flow __________________?

Accepted Answer

D. all of the above

Question 2

Froude number is significant in____________________?

Accepted Answer

C. simultaneous motion through two fluids where there is a surface of dis-continuity, gravity forces, and wave making effect, as with ship’s hulls

Question 3

Reynolds number is significant in____________________?

Accepted Answer

B. full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc

Question 4

A large Roynold number is indication of_________________?

Accepted Answer

E. highly turbulent flow

Question 5

In order that flow takes place between two points in a pipeline, the differential pressure between thes^ points must be more than_________________?

Accepted Answer

D. all of the above

Question 6

The pressure in Pascals at a depth of 1 m below the free surface of a body of water will be equal to________________?

Accepted Answer

D. 9810 Pa

Question 7

For pipes, turbulent flow occurs when Reynolds number is_________________?

Accepted Answer

C. more than 4000

Question 8

A hydraulic press has a ram of 15 cm diameter and plunger of 1.5 cm. It is required to lift a weight of 1 tonne. The force required on plunger is equal tc__________________?

Accepted Answer

A. 10 kg

Question 9

Bernoulli equation deals with the law of conservation of____________________?

Accepted Answer

C. energy

Question 10

Cavitation is caused by___________________?

Accepted Answer

D. low pressure

Question 11

Principle of similitude forms the basis of__________________?

Accepted Answer

B. designing models so that the result can be converted to prototypes

Question 12

Cavitation will begin when______________________?

Accepted Answer

A. the pressure at any location reaches an absolute pressure equal to the saturated vapour pressure of the liquid

Question 13

For similarity, in addition to models being geometrically similar to prototype, the following in both cases should also be equal__________________?

Accepted Answer

D. all the four ratios of inertial force to force due to viscosity, gravitation, surface tension, and elasticity

Question 14

Hydrometer is used to determine________________?

Accepted Answer

A. specific gravity of liquids

Question 15

Uniform flow occurs when___________________?

Accepted Answer

C. the magnitude and direction of the velocity do not change from point to point in the fluid

Question 16

The upper surface of a weir over which water flows is known is________________?

Accepted Answer

C. sill

Question 17

The region between the separation streamline and the boundary surface of the solid body is known as_________________?

Accepted Answer

A. wake

Question 18

A piece of wood having weight 5 kg floats in water with 60% of its volume under the liquid. The specific gravity of wood is__________________?

Accepted Answer

B. 0.6

Question 19

In a free vortex motion, the radial component of velocity everywhere is ________________?

Accepted Answer

C. zero

Question 20

The velocity of jet of water travelling out of opening in a tank filled with water is proportional to___________________?

Accepted Answer

C. V/T