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Q1. | A compound pipe is required to be replaced by a new pipe. The two pipes are said to be equivalent, if. |

A. | length of both the pipes is same [Wrong Answer] |

B. | diameter of both the pipes is same [Wrong Answer] |

C. | loss of head and discharge of both the pipes is same [Correct Answer] |

D. | loss of head and velocity of flow in both the pipes is same [Wrong Answer] |

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Explanation:-
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**Also Read Similar Questions Below :**

⇒ The vacuum pressure can be measured with the help of a piezometer tube.

True

False

Both (a) and (b)

None of these

⇒ The factional resistance of a pipe varies approximately with __________ of the liquid.

pressure

velocity

square of velocity

cube of velocity

⇒ The flow in a pipe or channel is said to be uniform when.

the liquid particles at all sectons have the same velocities

the liquid particles at different sections have different velocities

the quantity of liquid flowing per second is constant

each liquid particle has a definite path

⇒ When a cylindrical vessel containing liquid is revolved about its vertical axis at a constant angular velocity, the pressure.

varies as the square of the radial distance

increases linearly as its radial distance

increases as the square of the radial distance

decreases as the square of the radial distance

⇒ Select the correct statement.

Weber's number is the ratio of inertia force to elastic force.

Weber's number is the ratio of gravity force to surface tension force.

Weber's number is the ratio of viscous force to pressure force.

Weber's number is the ratio of inertia force to surface tension force.

⇒ The ratio of the inertia force to the gravity force is called Froude number.

Agree

Disagree

Both (a) and (b)

None of these

⇒ The viscosity of water at 20°C is.

one stoke

one centistroke

one poise

one centipoise

⇒ A vessel of 4 m

^{3}contains an oil which weighs 30 kN. The specific weight of the oil is.

4.5 kN/m3

6 kN/m3

7.5 kN/m3

10 kN/m3

⇒ The most economical section of a rectangular channel is one which has hydraulic mean depth or hydraulic radius equal to.

half the depth

half the breadth

twice the depth

twice the breadth

⇒ A manometer is used to measure.

atmospneric pressure

pressure in pipes and channels

pressure in venturimeter

difference of pressures between two points in a pipe

⇒ The pressure of liquid at throat in a venturimeter is __________ than that at inlet.

higher

lower

both (a) and (b)

none of these.

⇒ Stoke is the unit of.

kinematic viscosity in C. G. S. units

kinematic viscosity in M. K. S. units

dynamic viscosity in M. K. S. units

dynamic viscosity in S. I. units

⇒ A moving fluid mass may be brought to a static equilibrium position, by aplying an imaginary inertia force of the same magnitude as that of the accelerating force but in the opposite direction. This statement is called.

Pascal's law

Archimede's principle

D-Alembert's principle

none of these

⇒ According to Newton's law of viscosity, the shear stress on a layer of a fluid is __________ to the rate of shear strain.

equal to

directly proportional

inversely proportional

None of these

⇒ Venturimeter is used to.

measure the velocity of a flowing liquid

measure the pressure of a flowing liquid

measure the discharge of liquid flowing in a pipe

measure the pressure difference of liquid flowing between two points in a pipe line

⇒ The discharge over a triangular notch is.

inversely proportional to H3/2

directly proportional to H3/2

inversely proportional to H5/2

directly proportional to H5/2

⇒ The power transmitted through the nozzle is maximum when the head lost due to friction in the pipe is __________ of the total supply head.

one-half

one-third

two-third

None of these

⇒ Newton's law of viscosity is a relationship between.

pressure, velocity and temperature

shear stress and rate of shear strain

shear stress and velocity

rate of shear strain and temperature

⇒ The length of the divergent cone in a venturimeter is __________ that of the convergent cone.

equal to

double

three to four times

five to six times

⇒ The ratio of the inertia force to the viscous force is called.

Reynold's number

Froude's number

Weber's number

Euler's number

⇒ The Reynold's number of a ship is __________ to its velocity and length.

directly proportional

inversely proportional

Both (a) and (b)

none of these.

⇒ In a broad-crested weir, the discharge is maximum if the head of water on the downstream side of weir is __________ the head of water on the upstream side of weir.

equal to

one-third

two-third

three-fourth

⇒ The depth of water in a channel corresponding to the minimum specific energy is known as critical depth.

Agree

Disagree

Both (a) and (b)

None of these

⇒ The purpose of a surge tank is.

to control the pressure variations due to rapid changes in the pipe line flow

to eliminate water hammer possibilities

to regulate flow of water to turbines by providing necessary retarding head of water

all of the above

⇒ A glass tube of smaller diameter is used while performing an experiment for the capillary rise of water because.

it is easier to see through the glass tube

glass tube is cheaper than a metallic tube

it is not possible to conduct this experiment with any other tube

all of the above

⇒ The specific weight is also known as weight density.

Correct

Incorrect

Both (a) and (b)

None of these

⇒ The property of a liquid which offers resistance to the movement of one layer of liquid over another adjacent layer of liquid, is called.

surface tension

compressibility

capillarity

viscosity

⇒ The most efficient section of a channel is.

triangular

rectangular

square

trapezoidal

⇒ Bernoulli's equation is applied to.

venturimeter

orifice meter

pitot tube

all of these

⇒ In the manufacturing of lead shots, the property of surface tension is utilised.

Agree

Disagree

Both (a) and (b)

None of these