**The velocity of flow ( v) at the outlet of a syphon of length l, is given by:**

**A.**

**B.**

**C.**

**D.**

Options are :

- C
- D
- A
- B

**Answer :**B

**If v1 and v2
are the velocities of flow before and after sudden enlargement in a
pipe, the head loss given by Carnot and Borda equation, is:**

Options are :

- (v2^(2) - v1^(2))/2g
- (v1 + v2)^(2)/2g
- (v2 - v1)^(2)/2g
- (v1 - v2)^(2)/2g

**Answer :**(v1 - v2)^(2)/2g

Construction Management MCQ Practice Questions (Civil Eng) Set 1

**An
open container filled with water is moved vertically downward with a
uniform linear acceleration. The pressure at its bottom will be:**

Options are :

- None of these
- Greater than static pressure
- Equal to static pressure
- Lesser than static pressure

**Answer :**Lesser than static pressure

**The depth of the centre of pressure on a vertical rectangular gate (4 m wide, 3 m high) with water upto top surface, is:**

Options are :

- 2.0 m
- 1.5 m
- 2.5 m
- 1.0 m

**Answer :**2.0 m

**The pressure less than atmospheric pressure is known as:**

Options are :

- Suction pressure
- All the above
- Vacuum pressure
- Negative gauge pressure

**Answer :**All the above

Theory of Structures MCQ Practice Questions (Civil Eng) Set 1

**The flow in open channel is said to be critical if the Froude number is:**

Options are :

- Greater than 1.0
- Less than 1.0
- None of these
- Equal to 1.0

**Answer :**Equal to 1.0

**The dimensions MLT^(-2) refers to:**

Options are :

- None of these
- Specific weight
- Discharge
- Force

**Answer :**Force

**An ideal fluid:**

Options are :

- Obeys Newton's law of velocity
- Is frictionless and incompressible
- Is very viscous
- Is similar to gas

**Answer :**Is frictionless and incompressible

Concrete Technology MCQ Practice Questions (Civil Eng) Set 8

**Practical fluids possess:**

Options are :

- All the above
- Viscosity
- Surface tension
- Compressibility

**Answer :**All the above

**The differential equation dp/? + gdz + vdv = 0 for a fluid motion is suggested by:**

Options are :

- Laplace
- Leonard Euler
- Bernoulli
- Cauchy-Riemann

**Answer :**Leonard Euler

**The formula Q = m x L x ?2g x H^(3/2) where **

Options are :

- None of these
- Bazin
- Francis
- Cipolletti

**Answer :**Bazin

RCC Structures Design MCQ Practice Questions (Civil Eng) Set 3

**To
ensure that water does not rise more than 100 cm above the crest, for a
discharge of 5.00 m^(3)/sec, the length of water will be:**

Options are :

- 2.50 m
- 2.51 m
- 2.48 m
- 2.49 m

**Answer :**2.49 m

**For a most economical trapezoidal open channel, the half of the top width must be equal to:**

Options are :

- The depth of flow
- None of these
- One sloping side
- The bed width

**Answer :**One sloping side

**The
imaginary line drawn such that the tangents at its all points indicate
the direction of the velocity of the fluid particles at each point, is
called:**

Options are :

- Stream line
- Path line
- Streak line
- Potential line

**Answer :**Stream line

Hydraulics MCQ Practice Questions (Civil Engineering) Set 2

**In C.G.S. system the units of kinematic viscosity, is:**

Options are :

- Poise
- None of these
- Newton
- Stoke

**Answer :**Stoke

**Chezy's formula is used to determine:**

Options are :

- Velocity of flow in pipe
- Velocity of flow in open channels
- None of these
- Head loss due to friction in pipe

**Answer :**Velocity of flow in open channels

**A rise or fall of liquid in a glass tube of a very small diameter when dipped is:**

Options are :

- Directly proportional to the specific weight of liquid
- Directly proportional to the force per unit length of periphery
- Inversely proportional to the diameter of the glass tube
- Direcly proportional to the sine of the angle of contact

**Answer :**Directly proportional to the specific weight of liquid

RCC Structures Design MCQ Practice Questions (Civil Eng) Set 1

**When
the whole fluid mass rotates either due to fluid pressure or gravity or
rotation previously imparted, the motion is known as:**

Options are :

- Free vortex
- Forced vortex
- Non-potential vortex
- Rotational vortex

**Answer :**Free vortex

**An orifice is an opening in a vessel with:**

Options are :

- Partially full flow
- The water level of the liquid on the up stream side is below the top of the orifice
- Closed perimeter of regular shape through which water flows
- Prolonged sides having length of 2 to 3 diameters of the opening in thick wall

**Answer :**Closed perimeter of regular shape through which water flows

**If a pitot tube is placed with its nose facing down stream, the liquid:**

**A.**

Does not rise in the tube

**B.**

Rises in the tube to a height

**C.**

Falls in the tube to a depth

**D.**

None of these

Options are :

- B
- A
- C
- D

**Answer :**C

Hydraulics MCQ Practice Questions (Civil Engineering) Set 9

**In case of laminar flow through a circular pipe:**

Options are :

- None of these
- Energy correction factor is 2.00
- Momentum correction factor is 1.33

**Answer :**Energy correction factor is 2.00
Momentum correction factor is 1.33

**Pick up the correct statement from the following:**

Options are :

- Vertical distance between the total energy line and hydraulic grade line is equal to the velocity head
- Total energy gradient is the graphical representation of the total head at any section of a pipe line
- Vertical distance between the total energy line and total energy gradient represents loss of head
- All the above

**Answer :**All the above

Theory of Structures MCQ Practice Questions (Civil Eng) Set 4

**A non-uniform steady flow is through:**

Options are :

- An expanding tube at increasing rate
- A long tube at a decreasing rate
- An expanding tube at constant rate
- A long pipe at increasing rate

**Answer :**An expanding tube at constant rate

**Uniform flow is said to occur when:**

Options are :

- Frictional loss in the particular length of the channel, will be less than the drop in elevation
- Size and shape of the cross-section in a particular length remain constant
- Frictional loss in the particular length of the channel will the more than the drop in its elevation
- Size and shape of the cross-section change along a length

**Answer :**Size and shape of the cross-section in a particular length remain constant

**Cappoletti weir is a:**

Options are :

- Trapezoidal weir, whose sides slope 1 horizontal to 2 verticals
- Rectangular weir whose length is kept 3 times the height of the water above sill
- A combination of rectangular and triangular weirs
- Triangular weir whose notch angle is 90°

**Answer :**Trapezoidal weir, whose sides slope 1 horizontal to 2 verticals

Concrete Technology MCQ Practice Questions (Civil Eng) Set 7

**An
error of 1% in measuring the head of water over the crest of a
triangular notch, produces an error in the discharge which is equal to:**

Options are :

- 2.0%
- 1.25%
- 2.5%
- 1.5%

**Answer :**2.5%

**The ratio of frictional factor and coefficient of friction used in general equation for a head loss in a pipe, is:**

Options are :

- 4
- 1
- 2
- 3

**Answer :**4

**For exerting a pressure of 4.8 kg/cm2, the depth of oil (specific gravity 0.8), should be:**

Options are :

- 41 cm
- 60 cm
- 76 cm
- 56 cm
- 40 cm

**Answer :**60 cm

RCC Structures Design MCQ Practice Questions (Civil Eng) Set 1

**The rise of the liquid along the walls of a revolving cylinder above the initial level, is:**

Options are :

- Greater than the depression of the liquid at the axis of rotation
- None of these
- The same as the depression of the liquid at the axis of rotation
- Lesser than the depression of the liquid at the axis of rotation

**Answer :**The same as the depression of the liquid at the axis of rotation

**Atmospheric pressure varies with:**

Options are :

- Temperature
- All of the above
- Weather conditions
- Altitude

**Answer :**All of the above

- RCC Structures Design MCQ Practice Questions (Civil Eng) Set 2
- Hydraulics MCQ Practice Questions (Civil Engineering) Set 9
- RCC Structures Design MCQ Practice Questions (Civil Eng) Set 6
- Irrigation MCQ Practice Questions (Civil Engineering) Set 5
- Hydraulics MCQ Practice Questions (Civil Engineering) Set 6
- Concrete Technology MCQ Practice Questions (Civil Eng) Set 7
- Theory of Structures MCQ Practice Questions (Civil Eng) Set 1
- RCC Structures Design MCQ Practice Questions (Civil Eng) Set 1
- Irrigation MCQ Practice Questions (Civil Engineering) Set 3
- Concrete Technology MCQ Practice Questions (Civil Eng) Set 8
- Construction Management MCQ Practice Questions (Civil Eng) Set 3
- RCC Structures Design MCQ Practice Questions (Civil Eng) Set 8