A compressor is a machine which is used to

(a) lift liquid from low height to higher elevation

(a) tangential flow impulse turbine

(b) inward flow impulse turbine

(c) outward flow impulse turbine

Braking jet in an impulse turbine is used

(b) to bring the runner to rest in a short time

(c) to change the direction of runner

Which of the following statement is correct?

(c) In an impulse turbine, the pressure of the flowing water remains unchanged and is equal atmospheric pressure

(a) In an impulse turbine, the water impinges on the bucket with pressure energy.

(b) In a reaction turbine, the water glides over the moving vanes with kinetic energy.

(d) In a reaction turbine, the pressure of the flowing water increases after gliding over the vanes

The function of guide vanes in a reaction turbine is to

(a) allow the water to enter the runner without shock

(b) allow the water to flow over them, without forming eddies

(c) allow the required quantity of water to enter the turbine

Impulse turbine requires

b. High head and high discharge

The main disadvantage of a reciprocating pump compared to a centrifugal pump is:

High maintenance due to more moving parts

The priming of a centrifugal pump is done to:

Remove air from the pump casing

Increase the discharge pressure

The term "positive displacement" in reference to reciprocating pumps means:

b) The pump discharges a fixed volume of liquid per revolution

a) The pump can only handle liquids with low viscosities

d) The pump is suitable for high flow rates

Reciprocating compressors are primarily used when:

High-pressure, low-volume air is required

Low-pressure, high-volume air is required

Low-pressure, low-volume air is required

High-pressure, high-volume air is required

Which of the following is not a characteristic of a Pelton turbine?

Suitable for low-speed applications

Used for high-head applications

Less quantity of water is required

The main components of a reciprocating pump include:

b) Piston, connecting rod, and crankshaft

a) Suction valve, delivery valve, and impeller

Francis turbines are best suited for

Medium head and medium flow rate

Kaplan turbines are used for:

Medium head and medium flow rate

The Kaplan turbine is classified as:

Tangential flow impulse turbine

Reciprocating pumps operate by:

B. Moving a piston or plunger back and forth

A. Rotating a centrifugal impeller

C. Creating a pressure difference using a nozzle and diffuser

D. Using a screw mechanism to displace fluid

The main components of a Francis turbine include:

B. Scroll casing, runner, and draft tube

C. Impeller, stator, and diffuser

The primary function of a power producing device is to:

A. Convert mechanical energy into electrical energy

B. Convert electrical energy into mechanical energy

C. Store energy in a physical form

D. Transmit energy over long distances

Power absorbing devices are primarily used to:

A. Convert electrical energy into mechanical energy

B. Convert mechanical energy into electrical energy

C. Store energy in a physical form

D. Transmit energy over long distances

The primary function of a domestic refrigerator is to:

C. Remove heat from a closed space

B. Convert electrical energy into mechanical energy

D. Store food in a dry environment

The compressor in a refrigerator is responsible for:

C. Absorbing heat from the freezer

The condenser in a refrigerator is used to:

A. Release heat into the environment

B. Absorb heat from the evaporator

The evaporator in a refrigerator is located:

A. Inside the freezer compartment

The thermostat in a refrigerator controls:

B. The temperature of the refrigerator

A. The temperature of the freezer

D. The flow rate of the refrigerant

A split air conditioner consists of:

C. An indoor and an outdoor unit

The compressor in a split air conditioner is responsible for:

A. Absorbing heat from the indoor air

B. Releasing heat to the outdoor air

WALCHAND INSTITUTE OF TECHNOLOGY,SOLAPUR Quiz

50 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The pump transfers the mechanical energy of a motor or of an engine into _________ of a fluid.

(a) pressure energy

(b) kinetic energy

(c) either pressure energy or kinetic energy

(d) pressure energy, kinetic energy or both

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is not a type of positive displacement pumps?

(a) Reciprocating pump

(b) Rotary displacement pump

(c) Centrifugal pump

(d) None of the above

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is not a rotary pump?

(a) Gear

(b) Vane

(c) Screw

(d) Axial

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For small discharge and high head, which pump is preferred?

(a) centrifugal type

(b) screw type

(c) axial flow type

(d) reciprocating type

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Centrifugal pumps are used to transport

(a) pressure

(b) speed

(c) power

(d) fluid

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Centrifugal pumps transfer energy from

(a) rotor to fluid

(b) fluid to rotor

(c) draft to rotor

(d) rotor to draft

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A rotary compressor is driven by an

(a) electric motor

(b) engine

(c) either A or B

(d) none of these

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WALCHAND INSTITUTE OF TECHNOLOGY,SOLAPUR

The pump transfers the mechanical energy of a motor or of an engine into _________ of a fluid.

Which of the following is not a type of positive displacement pumps?

Which of the following is not a rotary pump?

For small discharge and high head, which pump is preferred?

Centrifugal pumps are used to transport

Centrifugal pumps transfer energy from

A rotary compressor is driven by an

In a centrifugal compressor, the flow of air is __________ to the axis of the compressor.

If the flow of air through the compressor is parallel to its axis, then the compressor is

A compressor is a machine which is used to

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