Civil Engineering MCQ Short Test- 3

follow us on Website https://www.mystudynotes.in/
follow us on telegram https://t.me/mystudynotes278
follow us on news https://www.barkhanews.in/

PWD, WRD, SSC, MPSC, ZP, नगरपरिषद, जलसंपदा, सरळसेवा परीक्षा साठी उपयुक्त

1➤ A venturimeter is a device that measures the rate of flow of fluid through a pipe. The venturi meter's operation is based on.........................

ⓐ none
ⓑ Buoyancy's principle
ⓒ Momentum of mass
ⓓ Bernoulli's equation.

2➤ The coefficient of velocity (Cv) for an orifice is___________

ⓐ 1
ⓑ 0.98
ⓒ 2
ⓓ 0.33

3➤ What flow is indicated by the Reynolds number greater than 4000?

ⓐ laminar flow
ⓑ uniform flow
ⓒ turbulent flow
ⓓ Transition flow

4➤ An ideal vertical curve to join two gradients, is__________

ⓐ circular
ⓑ parabolic
ⓒ hyperbolic
ⓓ none of these.

5➤ The intercept of a staff ____________________

ⓐ is maximum if the staff is held truly normal to the line of sight.
ⓑ decreases if the staff is tilted away from normal
ⓒ is minimum if the staff is held truly normal to the line of sight.
ⓓ increases if the staff is tilted towards normal.

6➤ The radius of curvature of the arc of the bubble tube is generally kept................

ⓐ 10 m
ⓑ 50 m
ⓒ 25 m
ⓓ 100 m

7➤ If S is the length of a subchord and R is the radius of simple curve, the angle of deflection between its tangent and sub-chord, in minutes, is equal to _____________.

ⓐ 573 S/R
ⓑ 171.9 S/R
ⓒ 1718.9 S/R
ⓓ 1718.9 R/S

8➤ The real image of an object formed by the objective, must lie

ⓐ at the centre of the telescope
ⓑ at the optical centre of the eye-piece
ⓒ in the plane of cross hairs
ⓓ anywhere inside the telescope.

9➤ In chain surveying tie lines are primarily provided to _____________

ⓐ to take offsets for detail survey
ⓑ to avoid long offsets from chain lines
ⓒ to check the accuracy of the survey
ⓓ increase the number of chain lines.

10➤ Pick up the correct statement from the following :

ⓐ standing on the tripod is the levelling head or trib arch
ⓑ the levelling screws are used to tilt the instrument so that its rotation axis is truly vertical
ⓒ the tangent screw enables to give small movement under conditions of smooth and positive control
ⓓ all the above

11➤ The water requirement of sugarcane is __________(in mm).

ⓐ 3000-4000
ⓑ 150-250
ⓒ 1500-2500
ⓓ above 3000

12➤ Borrow pits should preferably be located in__________________

ⓐ field on the right side of the canal
ⓑ central half width of the section of the canal.
ⓒ field on the left side of the canal
ⓓ fields on both sides of the canal

13➤ Irrigation canals are generally aligned along A. B. C. D.

ⓐ ridge line
ⓑ contour line
ⓒ straight line.
ⓓ valley line

14➤ The difference in level between the top of a bank and supply level in a canal, is called

ⓐ berm
ⓑ free board
ⓒ none of these.
ⓓ height of bank

15➤ F.S.L. of a canal at its head with respect to parent channel is kept ...........

ⓐ at the same level
ⓑ 15 cm higher
ⓒ 15 cm lower
ⓓ none of these.

16➤ The measure to remove water logging of land, is_________________

ⓐ A. to reduce percolation from canals and water courses
ⓑ B. to increase outflow from the ground water reservoir
ⓒ both (a) and (b)
ⓓ neither (a) nor (b)

17➤ The top soil of a water logged field becomes more alkaline and infertile if its pH value is.

ⓐ 1
ⓑ 9
ⓒ 8
ⓓ 11

18➤ Retrogression of the bed level of a river downstream a weir, occurs due to

ⓐ increase of the bed level
ⓑ less percentage of silt
ⓒ heavy impact of water
ⓓ soft soil strata.

19➤ Torque is __________ moment.

ⓐ Twisting
ⓑ Shear
ⓒ Couple
ⓓ Bending

20➤ Twisting moment is a product of __________ and the radius.

ⓐ Velocity
ⓑ Force
ⓒ Direction
ⓓ Acceleration

21➤ The SI units for torsion is __________

ⓐ N
ⓑ N/m
ⓒ N m
ⓓ m

22➤ What is the general value for coefficient of contraction?

ⓐ 0.67
ⓑ 0.66
ⓒ 0.64
ⓓ 0.7