civil engineering quiz mcqs's vyapam mppsc ses ies gate ssc and other exams

1.Economical height of a dam” is that height, for which the--cost
per unit of storage is minimum

2.The percentage of the total sediment flow depositing in the reservoir, is
called as--trap efficiency

3.What is the unit of intrinsic permeability?--cm2

4.how much is the average delta of rice crop?--120cm

5.A contour canal is
.-irrigates only on one side
-is most suitable in hilly areas
-is generally aligned parallel to the contour of the area

6.Humidity is measured by:- hygrometer

7.What is the Uniformity coefficient of filter sand?--D60/D10

8. At what efficiency does a single speed centrifugal pump, feeding a small
water supply distribution system of a block of houses, work at? /
-----Reduced efficiency

9.From the following options, which type of valve is provided on the suction
pipe in a tube well?----Reflux valve

10. What causes the corrosion in concrete sewers?---Septic condition

11.What is the appropriate percentage of water in sewage?--99.9%

12.If the pH value of sewage is 7, it is a---neutral

13. The pressure of free ammonia in sewage is detected by---boiling

14. how are the Bacteria in sewage?--Seprophytic

15.Killing of tissue from air pollutant is called--necrosis

16.The traffic volume is equal to--traffic density x traffic speed

17.The sag correction in surveys is always--negative

18.What is open cross staff used for setting out?--long offsets

19.The optical square is based on the principle of optical--double reflection

20.What is the approximate value of M 10 grade of concrete?---  1: 3 : 6 mix

21.Which source of water among the following is not a surface source?--lakes

22.From the options given below, in which situations, the viscous force is
unimportant---capillary waves in channels

23.When a ship moving on seawater enters a river and moves inland, it is
expected to--Sink a little

24.The point in the immersed body through which the resultant pressure of
the liquid may be taken to act is known as-- Centre of pressure

24.Surface tension of water---increases with decrease in temperature

25.How does the negative skin friction on a pile under vertical compressive
load act? Decreses and reduces load carrying capacity

25.From the following options which is the correct increasing order of specific
surface i.e., surface area per mass of the given soils.

----sand ,silt ,collids ,clay

26. A column has effective length L, when both ends are fixed. What will be
the new effective length if one end become hinged?--1.41 L

27.