Civil Engineering Mcqs Practice Test

Question 1

Total pressure on a lmxlm gate immersed vertically at a depth of 2 m below the free water surface will be ___________________?

Accepted Answer

A. 1000 kg

Question 2

The normal stress is same in all directions at a point in a fluid ___________________?

Accepted Answer

C. when there is no motion of one fluid layer relative to an adjacent layer

Question 3

The time oscillation of a floating body with increase in metacentric height will be________________?

Accepted Answer

C. lower

Question 4

In an immersed body, center of pressure is ____________________?

Accepted Answer

C. below be center of gravity

Question 5

The pressure in the air space above an oil (sp. gr. 0.8) surface in a tank is 0.1 kg/cm”. The pressure at 2.5 m below the oil surface will be ___________________?

Accepted Answer

B. 3 meters of water column

Question 6

The line of action of the buoyant force acts through the centroid of the ___________________?

Accepted Answer

D. displaced volume of the fluid

Question 7

Differential monometer is used to measure _______________________?

Accepted Answer

D. difference of pressure between two points

Question 8

Resultant pressure of the liquid in the case of an immersed body acts through _________________?

Accepted Answer

B. center of pressure

Question 9

The two important forces for a floating body are___________________?

Accepted Answer

A. buoyancy, gravity

Question 10

Center of pressure on an inclined plane is______________________?

Accepted Answer

C. below the centroid

Question 11

An open vessel of water is accelerated up an inclined plane. The free water surface will___________________?

Accepted Answer

C. make an angle in opposite direction to inclination of inclined plane

Question 12

For a floating body to be in equilibrium __________________?

Accepted Answer

D. all of the above

Question 13

Ratio of inertia force to elastic force is known as _____________________?

Accepted Answer

A. Mach number

Question 14

A ship whose hull length is 100 m is to travel at 10 m/sec. For dynamic similarity, at what velocity should a 1:25 model be towed through water  ?

Accepted Answer

C. 2 m/sec

Question 15

A model of torpedo is tested in a towing tank at a velocity of 25 m/sec. The prototype is expected to attain a velocity of 5 m/sec. What model scale has been used ?

Accepted Answer

A. 1 : 5

Question 16

For a floating body to be in stable equilibrium, its metacentre should be_________________ ?

Accepted Answer

E. above the center of gravity

Question 17

A model of a reservior is drained in 4 mts by opening the sluice gate. The model scale is 1: 225. How long should it take to empty the prototype  ?

Accepted Answer

E. 4 x V225 minutes

Question 18

When a body floating in a liquid, is displaced slightly, it oscillates about ___________________?

Accepted Answer

D. metacentre

Question 19

Ratio of inertia force to surface Jension is known as ________________________?

Accepted Answer

D. Weber’s number

Question 20

Buoyant force is___________________?

Accepted Answer

D. the resultant force on a body due to the fluid surrounding it