Civil Engineering Mcqs Practice Test

Question 1

According to the principle of buoyancy a body totally or partially immersed in a fluid will be lifted up by a force equal to __________________?

Accepted Answer

D. weight of the fluid displaced by the body

Question 2

For a body floating in a liquid the normal pressure exerted by the liquid acts at _________________?

Accepted Answer

D. all points on the surface of the body

Question 3

Metacentre is the point of intersection of _________________________?

Accepted Answer

B. buoyant force and the center line of body

Question 4

The depth of the center of pressure on a vertical rectangular gate 8 m wide and 6 m high, when the water surface coincides with the top of the gate, is ______________________?

Accepted Answer

B. 3.0 m

Question 5

Choose the wrong statement___________________?

Accepted Answer

D. he vertical component passes through the center of pressure of the volume

Question 6

If the atmospheric pressure on the surface of an oil tank (sp. gr. 0.8) is 0.2 kg/cm”, the pressure at a depth of 50 m below the oil surface will be _____________________?

Accepted Answer

D. 6 meters of water Column

Question 7

A square surface 3 m x 3 m lies in a vertical line in water pipe its upper edge at vater surface. The hydrostatic force on square surface is __________________?

Accepted Answer

B. 13,500 kg

Question 8

The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at the centriod, if __________________?

Accepted Answer

D. all of the above

Question 9

A body floats in stable equilibrium________________?

Accepted Answer

B. when the metancentre is above e.g

Question 10

The horizontal component of buoyant force is__________________?

Accepted Answer

C. zero

Question 11

Center of buoyancy is the___________________?

Accepted Answer

A. centroid of the displaced volume of fluid

Question 12

A piece weighing 3 kg in air was found to weigh 2.5 kg when submerged in water. Its specific gravity is__________________?

Accepted Answer

D. 6

Question 13

The resultant upward pressure of the fluid on an immersed body due to its tendency to uplift the sub-merged body is called___________________?

Accepted Answer

C. buoyancy

Question 14

Centre of pressure compared to e.g. is______________?

Accepted Answer

B. below it

Question 15

The center of pressure of a surface subjected to fluid pressure is the point____________________?

Accepted Answer

A. on the surface at which resultant pres-sure acts

Question 16

Metacentric height is the distance between the metacentre and___________________?

Accepted Answer

C. center of gravity

Question 17

The resultant of all normal pressures acts_________________?

Accepted Answer

C. vertically upwards

Question 18

In order to increase sensitivity of U-tube manometer, one leg is usually inclined by angle 9. Sensitivity of inclined tube to sensitivity of U-tube is equal to_________________?

Accepted Answer

B. sin 9

Question 19

Working principle of dead weight pressure gauge tester is based on __________________?

Accepted Answer

A. Pascal’s law

Question 20

Which of the following manometer has highest sensitivity __________________?

Accepted Answer

D. micro-manometer with water