Engineering Questions with Answers - Multiple Choice Questions

# MCQs on Thin Cylinder with Maximum Shear Stress

1 - Question

Torsional modulus is ___________ to torsional strength.
a) Inversely proportional
b) Directly proportional
c) Equal
d) Unequal

Explanation: As the value of torsional modulus increases, the torsional strength increases. For example, a hollow circular shaft compared to that of solid shaft of the same area will have more torsional strength.

2 - Question

_______ torque produces the maximum shear stress due to combined bending.
a) Seasonal
b) Equipment
c) Composite
d) Series

Explanation: The equipment torque is the twisting moment which acts along to produce the maximum shear stress due to combined bending and torsion.

3 - Question

_______ is the structures installed for the purpose of drawing water.
a) Intakes
b) Conduits
c) Valves
d) Springs

Explanation: The devices or structures installed for the purpose of drawing water from the sources are called intakes. Water is distributed from the source to the treatment through conduits.

4 - Question

_______ is an example of a gravity conduit.
a) C I pipes
b) Flumes
c) W I pipes
d) Steel pipes

Explanation: Gravity conduits are those in which water flows under more action of gravity. Flumes are open channels supported on (over the ground surfaces).

5 - Question

________ is the gravity conduits used while crossing a hill or lock.
a) Flumes
b) Aqueducts
c) Canals
d) Tunnels

Explanation: Tunnels are portions of aqueduct used while crossing a hill or rock. They may be grade tunnels or pressure tunnels depending on whether the water flows with a free surface or under pressure.

6 - Question

In aqueduct, the nominal flow of velocity be ________
a) 0.5 m/s
b) 0.9 m/s
c) 0.6 m/s
d) 0.8 m/s

Explanation: Aqueduct is covered waterways used to carry water from a remote source to origin of distribution. Water is not under pressure, so the aqueduct can even be built of brick with a velocity of 0.9 metre per second.

7 - Question

_____________ coincides with the water surface in a canal or open channel.
a) HGL
b) TEL
c) TWL
d) HTL

Explanation: The hydraulic gradient line in channels coincides with the water surface in a canal or open channel. The generally canals are trapezoidal in shape but rectangular sections prove economical.

8 - Question

Pressure conduits are also known as _______
a) Pipe conduits
b) Gravity conduits
c) Artesian conduits
d) Surface conduits

Explanation: Pressure conduits are also known as pipe conduits in which large amounts of water flow under pressure. The location is so chosen that it will be most favourable with regard to the construction cost and resulting pressures.

9 - Question

What is the flow of velocity in the pressure conduit?
a) 0.5 to 0.6 m/s
b) 0.6 to 0.7 m/s
c) 0.6 to 0.8 m/s
d) 0.8 to 1 m/s

Explanation: Velocities should be high enough to prevent silt deposition in the pipe and should be about 0.6 to 0.8 m/s. At low points, in the pipes, blow off branches with valves are placed to drain the water.

10 - Question

Pressure conduits with steel pipes varies diameter _______
a) 2500 mm
b) 3000 mm
c) 3500 mm
d) 4000 mm

Explanation: Steel pipes are manufactured for various purposes like rising mains, conveying mains distribution systems and inverted siphons. They are used in size ranging from 900 mm to 3000 mm in diameter.

11 - Question

Which of the following conduits possess low resistance to acid nature?
a) RCC pipes
b) PVC pipes
c) Steel pipes
d) PSC pipes

Explanation: A partial vacuum is formed while emptying the steel pipeline, it is likely to collapse easily or get deform permanently. Steel pipes are more liable to resist acidic nature.

12 - Question

_______ pipes are not easily biodegradable.
a) RCC
b) PSC
c) PVC
d) G I

Explanation: Reinforced concrete pipes maybe precast or cast in situ. The life of pipes is more than 65 years. They are not easily biodegradable. They can be manufactured with indigenous equipment.

13 - Question

RCC pipes can be used up to a pressure of 3.0 kg/cm2.
a) True
b) False

Explanation: RCC pipes can be used up to a pressure of 3 kg/cm2. Cast Iron pipes and steel pipes up to 24 kg/cm2.

14 - Question

Expand HDPE?
a) High Density Polyvinyl Pipe
b) High Density Polyethylene Pipe
c) High Deformed Polyvinyl Pipe
d) High Deformed Polyethene Pipe

Explanation: HDPE stands for High Density Polyethylene Pipe. HDPE pipes of sizes ranging from 300 to 3000 mm internal diameter are manufactured by a helical winding process.

15 - Question

_______ conduits are 1/10 weight of concrete.
a) PVC
b) GRP
c) RCC
d) CI