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MACHINERY (FELFEL) > MACHINERY > Flashcards

MACHINERY Flashcards

1
Q

Which of the following is NOT a type of pump?
a) Centrifugal pump
b) Axial flow pump
c) Diagonal flow pump
d) Reciprocating pump

A

c) Diagonal flow pump

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2
Q

Which type of pump generates pressure by rotating impellers?
a) Reciprocating pump
b) Centrifugal pump
c) Axial flow pump
d) Gear pump

A

b) Centrifugal pump

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3
Q

What is the function of a turbine in fluid machinery?
a) To increase pressure
b) To decrease pressure
c) To transfer fluid from one location to another
d) To generate mechanical energy from fluid flow

A

d) To generate mechanical energy from fluid flow

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4
Q

Which of the following statements about centrifugal pumps is true?
a) They are most efficient at high pressures.
b) They are used primarily for low flow rates.
c) They are not suitable for handling viscous fluids.
d) They require a priming process before operation.

A

d) They require a priming process before operation.

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5
Q

What is the main advantage of a reciprocating pump?
a) High efficiency
b) Smooth flow rate
c) Self-priming capability
d) Suitable for high flow rates

A

c) Self-priming capability

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6
Q

Which type of turbine has blades that are parallel to the direction of fluid flow?
a) Pelton turbine
b) Kaplan turbine
c) Francis turbine
d) Cross-flow turbine

A

b) Kaplan turbine

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7
Q

What is the primary function of an axial flow pump?
a) To generate high pressures
b) To handle viscous fluids
c) To transfer fluid over a long distance
d) To produce a high flow rate

A

d) To produce a high flow rate

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8
Q

Which type of pump is commonly used in firefighting applications?
a) Gear pump
b) Centrifugal pump
c) Reciprocating pump
d) Diaphragm pump

A

b) Centrifugal pump

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9
Q

Which of the following is a characteristic of positive displacement pumps?
a) They have a continuous flow rate.
b) They are not suitable for handling solids.
c) They create a pulsating flow.
d) They operate at low pressures

A

c) They create a pulsating flow.

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10
Q

In a centrifugal pump, where is the highest fluid pressure typically found?
a) At the inlet
b) At the impeller blades
c) At the outlet
d) At the volute casing

A

c) At the outlet

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11
Q

Which type of turbine is most suitable for low-head applications?
a) Pelton turbine
b) Kaplan turbine
c) Francis turbine
d) Cross-flow turbine

A

b) Kaplan turbine

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12
Q

Which of the following is a disadvantage of using a gear pump?
a) High maintenance requirements
b) Low efficiency
c) Limited capacity
d) Difficulty in handling viscous fluids

A

d) Difficulty in handling viscous fluids

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13
Q

What is the primary advantage of a diaphragm pump?
a) High efficiency
b) Ability to handle abrasive fluids
c) Low initial cost
d) Suitable for high-pressure applications

A

b) Ability to handle abrasive fluids

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14
Q

Which type of pump is commonly used in the chemical industry due to its ability to handle
corrosive fluids?
a) Gear pump
b) Centrifugal pump
c) Diaphragm pump
d) Reciprocating pump

A

c) Diaphragm pump

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15
Q

What is the purpose of the volute casing in a centrifugal pump?
a) To increase fluid velocity
b) To convert kinetic energy into pressure
c) To prevent cavitation
d) To regulate flow rate

A

b) To convert kinetic energy into pressure

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16
Q

Which type of pump is often used in hydraulic systems for precise control of fluid flow?
a) Centrifugal pump
b) Axial flow pump
c) Gear pump
d) Reciprocating pump

A

c) Gear pump

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17
Q

What is the main advantage of using a multistage pump?
a) Higher efficiency
b) Lower initial cost
c) Simplicity in design
d) Lower maintenance requirements

A

a) Higher efficiency

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18
Q

Which type of turbine has the highest efficiency for high-head applications?
a) Pelton turbine
b) Kaplan turbine
c) Francis turbine
d) Cross-flow turbine

A

c) Francis turbine

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19
Q

Which of the following is a type of positive displacement pump?
a) Centrifugal pump
b) Gear pump
c) Axial flow pump
d) Diaphragm pump

A

b) Gear pump

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20
Q

What is the primary function of a Pelton turbine?
a) To generate electricity from high-pressure fluid
b) To pump water over long distances
c) To lift water from a lower to a higher level
d) To extract energy from low-pressure fluid

A

a) To generate electricity from high-pressure fluid

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21
Q

Which type of pump is best suited for high-viscosity fluids?
a) Centrifugal pump
b) Axial flow pump
c) Gear pump
d) Reciprocating pump

A

c) Gear pump

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22
Q

Which of the following is NOT a type of centrifugal pump?
a) Single-stage pump
b) Multistage pump
c) Axial flow pump
d) Submersible pump

A

c) Axial flow pump

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23
Q

What is the primary disadvantage of a reciprocating pump?
a) High initial cost
b) Pulsating flow
c) Limited capacity
d) Inability to handle solids

A

b) Pulsating flow

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24
Q

Which type of turbine is most commonly used in hydroelectric power plants?
a) Pelton turbine
b) Kaplan turbine
c) Francis turbine
d) Cross-flow turbine

A

c) Francis turbine

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25
Q

What is the main function of the diffuser in a centrifugal pump?
a) To increase fluid velocity
b) To convert kinetic energy into pressure
c) To regulate flow rate
d) To prevent cavitation

A

b) To convert kinetic energy into pressure

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26
Q

Which type of pump is often used in oil refineries for transferring crude oil?
a) Centrifugal pump
b) Gear pump
c) Diaphragm pump
d) Reciprocating pump

A

b) Gear pump

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27
Q

Which of the following statements about axial flow pumps is true?
a) They are suitable for high-pressure applications.
b) They have a small footprint.
c) They are not affected by cavitation.
d) They operate at low flow rates.

A

b) They have a small footprint.

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28
Q

What is the primary advantage of using a submersible pump?
a) Ability to handle corrosive fluids
b) Low energy consumption
c) Suitable for high-temperature fluids
d) Can be operated without priming

A

d) Can be operated without priming

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29
Q

Which type of pump is commonly used in water treatment plants for filtration processes?
a) Reciprocating pump
b) Diaphragm pump
c) Gear pump
d) Centrifugal pump

A

d) Centrifugal pump

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30
Q

What is the main function of the runner in a turbine?
a) To regulate flow rate
b) To convert mechanical energy into electrical energy
c) To convert fluid energy into mechanical energy
d) To prevent cavitation

A

c) To convert fluid energy into mechanical energy

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31
Q

Which type of turbine has blades that resemble a ship’s propeller?
a) Pelton turbine
b) Kaplan turbine
c) Francis turbine
d) Cross-flow turbine

A

b) Kaplan turbine

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32
Q

Which of the following is a characteristic of a single-stage centrifugal pump?
a) High head
b) Low

A

a) High head

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33
Q

Which type of pump is commonly used in high-pressure water jet cutting systems?
a) Reciprocating pump
b) Diaphragm pump
c) Axial flow pump
d) Gear pump

A

a) Reciprocating pump

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34
Q

What is the primary advantage of a double-suction centrifugal pump?
a) Lower initial cost
b) Reduced maintenance requirements
c) Higher flow rates
d) Self-priming capability

A

c) Higher flow rates

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35
Q

Which type of turbine is most suitable for tidal power generation?
a) Pelton turbine
b) Kaplan turbine
c) Francis turbine
d) Cross-flow turbine

A

b) Kaplan turbine

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36
Q

What is the function of wear rings in centrifugal pumps?
a) To increase efficiency
b) To reduce cavitation
c) To provide a sealing surface
d) To prevent corrosion

A

c) To provide a sealing surface

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37
Q

Which type of pump is commonly used in food processing industries for handling viscous
fluids?
a) Axial flow pump
b) Gear pump
c) Reciprocating pump
d) Diaphragm pump

A

b) Gear pump

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38
Q

What is the primary function of the draft tube in a turbine?
a) To increase pressure
b) To regulate flow rate
c) To decrease pressure
d) To prevent cavitation

A

c) To decrease pressure

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39
Q

Which of the following statements about reciprocating pumps is true?
a) They have a continuous flow rate.
b) They are not affected by suction lift.
c) They require a bypass valve for operation.
d) They are suitable for handling abrasive fluids.

A

kammo HAHAHAHHAHA

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40
Q

Which type of pump is commonly used for metering precise amounts of fluid in chemical
processing?
a) Centrifugal pump
b) Diaphragm pump
c) Gear pump
d) Axial flow pump

A

b) Diaphragm pump

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41
Q

What is the main advantage of using a canned motor pump?
a) Reduced maintenance requirements
b) Ability to handle high temperatures
c) Self-priming capability
d) Higher efficiency

A

d) Higher efficiency

42
Q

Which type of turbine is best suited for sites with variable water flow rates?
a) Pelton turbine
b) Kaplan turbine
c) Francis turbine
d) Cross-flow turbine

A

d) Cross-flow turbine

43
Q

What is the primary function of a diffuser in a centrifugal compressor?
a) To increase fluid velocity
b) To decrease fluid pressure
c) To convert kinetic energy into pressure
d) To prevent cavitation

A

c) To convert kinetic energy into pressure

44
Q

Which type of pump is commonly used in wastewater treatment plants for recirculation
applications?
a) Axial flow pump
b) Gear pump
c) Diaphragm pump
d) Centrifugal pump

A

d) Centrifugal pump

45
Q

What is the primary advantage of using a regenerative turbine pump?
a) Low initial cost
b) High efficiency
c) Ability to handle solids
d) Self-priming capability

A

b) High efficiency

46
Q

Which type of turbine is most commonly used in low-head hydroelectric power plants?
a) Pelton turbine
b) Kaplan turbine
c) Francis turbine
d) Cross-flow turbine

A

c) Francis turbine

47
Q

What is the primary function of the impeller in a centrifugal pump?
a) To convert fluid energy into mechanical energy
b) To regulate flow rate
c) To increase fluid velocity
d) To prevent cavitation

A

a) To convert fluid energy into mechanical energy

48
Q

Which of the following is NOT a characteristic of an axial flow pump?
a) Low head
b) High flow rate
c) Small footprint
d) Inability to handle solids

A

d) Inability to handle solids

49
Q

What is the primary advantage of using a peristaltic pump?
a) High efficiency
b) Ability to handle abrasive fluids
c) Reduced maintenance requirements
d) Self-priming capability

A

d) Self-priming capability

50
Q

Which type of pump is commonly used in medical devices for precise fluid delivery?
a) Reciprocating pump
b) Gear pump
c) Diaphragm pump
d) Centrifugal pump

A

c) Diaphragm pump

51
Q

What is the main advantage of using a screw pump?
a) Ability to handle abrasive fluids
b) Low energy consumption
c) Self-priming capability
d) Suitable for high-viscosity fluids

A

d) Suitable for high-viscosity fluids

52
Q

Which type of turbine is most suitable for low-flow, high-head applications?
a) Pelton turbine
b) Kaplan turbine
c) Francis turbine
d) Cross-flow turbine

A

b) Kaplan turbine

53
Q

What is the primary disadvantage of using an axial flow pump?
a) High initial cost
b) Limited efficiency at high flow rates
c) Inability to handle solids
d) Difficulty in maintenance

A

c) Inability to handle solids

54
Q

Which type of pump is commonly used in HVAC systems for circulating water?
a) Reciprocating pump
b) Diaphragm pump
c) Gear pump
d) Centrifugal pump

A

d) Centrifugal pump

55
Q

What is the primary function of a volute casing in a centrifugal pump?
a) To increase fluid velocity
b) To convert kinetic energy into pressure
c) To regulate flow rate
d) To prevent cavitation

A

b) To convert kinetic energy into pressure

56
Q

Which type of turbine has blades shaped like a cup or a spoon?
a) Pelton turbine
b) Kaplan turbine
c) Francis turbine
d) Cross-flow turbine

A

a) Pelton turbine

57
Q

What is the primary advantage of using a magnetic drive pump?
a) Ability to handle corrosive fluids
b) High efficiency
c) Self-priming capability
d) Reduced risk of leakage

A

d) Reduced risk of leakage

58
Q

Which type of pump is commonly used in reverse osmosis systems for water purification?
a) Gear pump
b) Diaphragm pump
c) Centrifugal pump
d) Reciprocating pump

A

a) Gear pump

59
Q

What is the main function of a diffuser in a centrifugal pump?
a) To increase fluid velocity
b) To decrease fluid pressure
c) To convert kinetic energy into pressure
d) To prevent cavitation

A

c) To convert kinetic energy into pressure

60
Q

Which type of turbine is most suitable for sites with high-flow, low-head conditions?
a) Pelton turbine
b) Kaplan turbine
c) Francis turbine
d) Cross-flow turbine

A

a) Pelton turbine

61
Q

Which of the following is a characteristic of a mixed-flow pump?
a) High efficiency at low flow rates
b) Inability to handle solids
c) Self-priming capability
d) Limited head capability

A

a) High efficiency at low flow rates

62
Q

What is the primary function of a check valve in a pump system?
a) To regulate flow rate
b) To prevent backflow
c) To increase pressure
d) To control fluid velocity

A

b) To prevent backflow

63
Q

Which type of turbine is commonly used in small-scale hydropower installations?
a) Pelton turbine
b) Kaplan turbine
c) Francis turbine
d) Cross-flow turbine

A

d) Cross-flow turbine

64
Q

What is the primary advantage of using a peristaltic pump?
a) Ability to handle abrasive fluids
b) Low maintenance requirements
c) High efficiency
d) Self-priming capability

A

d) Self-priming capability

65
Q

Which type of pump is commonly used in agricultural irrigation systems?
a) Gear pump
b) Diaphragm pump
c) Centrifugal pump
d) Reciprocating pump

A

c) Centrifugal pump

66
Q

What is the main function of the stator in a centrifugal pump?
a) To convert fluid energy into mechanical energy
b) To regulate flow rate
c) To increase fluid velocity
d) To guide fluid flow from the impeller to the discharge port

A

d) To guide fluid flow from the impeller to the discharge port

67
Q

Which type of turbine is most suitable for applications with fluctuating water flow rates?
a) Pelton turbine
b) Kaplan turbine
c) Francis turbine
d) Cross-flow turbine

A

b) Kaplan turbine

68
Q

What is the primary disadvantage of using a jet pump?
a) High energy consumption
b) Limited capacity
c) Difficulty in maintenance
d) Inability to handle solids

A

a) High energy consumption

69
Q

Which type of pump is commonly used in oil drilling rigs for mud circulation?
a) Reciprocating pump
b) Diaphragm pump
c) Gear pump
d) Centrifugal pump

A

c) Gear pump

70
Q

What is the main advantage of using a vane pump?
a) High efficiency
b) Ability to handle abrasive fluids
c) Self-priming capability
d) Low noise operation

A

c) Self-priming capability

71
Q

Which type of turbine is most suitable for applications where the water source has high
sediment content?
a) Pelton turbine
b) Kaplan turbine
c) Francis turbine
d) Cross-flow turbine

A

d) Cross-flow turbine

72
Q

What is the primary function of a diffuser in a centrifugal compressor?
a) To increase fluid velocity
b) To decrease fluid pressure
c) To convert kinetic energy into pressure
d) To prevent cavitation

A

c) To convert kinetic energy into pressure

73
Q

Which type of pump is commonly used in swimming pool filtration systems?
a) Gear pump
b) Diaphragm pump
c) Centrifugal pump
d) Reciprocating pump

A

c) Centrifugal pump

74
Q

What is the main function of the impeller in a centrifugal pump?
a) To convert fluid energy into mechanical energy
b) To regulate flow rate
c) To increase fluid velocity
d) To prevent cavitation

A

a) To convert fluid energy into mechanical energy

75
Q

Which type of turbine is most suitable for low-flow, high-head applications?
a) Pelton turbine
b) Kaplan turbine
c) Francis turbine
d) Cross-flow turbine

A

c) Francis turbine

76
Q

What is the primary advantage of using a regenerative turbine pump?
a) Low initial cost
b) High efficiency
c) Ability to handle solids
d) Self-priming capability

A

b) High efficiency

77
Q

Which type of pump is commonly used in oil refineries for transferring crude oil?
a) Centrifugal pump
b) Gear pump
c) Diaphragm pump
d) Reciprocating pump

A

b) Gear pump

78
Q

What is the main function of the draft tube in a turbine?
a) To increase pressure
b) To regulate flow rate
c) To decrease pressure
d) To prevent cavitation

A

c) To decrease pressure

79
Q

Which type of turbine has blades shaped like a cup or a spoon?
a) Pelton turbine
b) Kaplan turbine
c) Francis turbine
d) Cross-flow turbine

A

a) Pelton turbine

80
Q

Which type of pump is commonly used in medical devices for precise fluid delivery?
a) Reciprocating pump
b) Gear pump
c) Diaphragm pump
d) Centrifugal pump

A

d) Centrifugal pump

81
Q

What is the main advantage of using a screw pump?
a) Ability to handle abrasive fluids
b) Low energy consumption
c) Self-priming capability
d) Suitable for high-viscosity fluids

A

d) Suitable for high-viscosity fluids

82
Q

Which type of turbine is most suitable for low-head hydroelectric power generation?
a) Pelton turbine
b) Kaplan turbine
c) Francis turbine
d) Cross-flow turbine

A

b) Kaplan turbine

83
Q

What is the primary disadvantage of using an axial flow pump?
a) High initial cost
b) Limited efficiency at high flow rates
c) Inability to handle solids
d) Difficulty in maintenance

A

c) Inability to handle solids

84
Q

Which type of pump is commonly used in reverse osmosis systems for water purification?
a) Gear pump
b) Diaphragm pump
c) Centrifugal pump
d) Reciprocating pump

A

a) Gear pump

85
Q

What is the primary function of a volute casing in a centrifugal pump?
a) To increase fluid velocity
b) To convert kinetic energy into pressure
c) To regulate flow rate
d) To prevent cavitation

A

b) To convert kinetic energy into pressure

86
Q

Which type of turbine is most suitable for sites with high-flow, low-head conditions?
a) Pelton turbine
b) Kaplan turbine
c) Francis turbine
d) Cross-flow turbine

A

b) Kaplan turbine

87
Q

Which of the following is a characteristic of a mixed-flow pump?
a) High efficiency at low flow rates
b) Inability to handle solids
c) Self-priming capability
d) Limited head capability

A

a) High efficiency at low flow rates

88
Q

What is the primary function of a check valve in a pump system?
a) To regulate flow rate
b) To prevent backflow
c) To increase pressure
d) To control fluid velocity

A

b) To prevent backflow

89
Q

Which type of turbine is commonly used in small-scale hydropower installations?
a) Pelton turbine
b) Kaplan turbine
c) Francis turbine
d) Cross-flow turbine

A

c) Francis turbine

90
Q

What is the main function of the stator in a centrifugal pump?
a) To convert fluid energy into mechanical energy
b) To regulate flow rate
c) To increase fluid velocity
d) To guide fluid flow from the impeller to the discharge port

A

c) To increase fluid velocity

91
Q

Which type of pump is commonly used in oil drilling rigs for mud circulation?
a) Reciprocating pump
b) Diaphragm pump
c) Gear pump
d) Centrifugal pump

A

d) Centrifugal pump

92
Q

What is the main advantage of using a vane pump?
a) High efficiency
b) Ability to handle abrasive fluids
c) Self-priming capability
d) Low noise operation

A

a) High efficiency

93
Q

Which type of turbine is most suitable for applications where the water source has high
sediment content?
a) Pelton turbine
b) Kaplan turbine
c) Francis turbine
d) Cross-flow turbine

A

d) Cross-flow turbine

94
Q

What is the primary function of a diffuser in a centrifugal compressor?
a) To increase fluid velocity
b) To decrease fluid pressure
c) To convert kinetic energy into pressure
d) To prevent cavitation

A

c) To convert kinetic energy into pressure

95
Q

Which type of pump is commonly used in swimming pool filtration systems?
a) Gear pump
b) Diaphragm pump
c) Centrifugal pump
d) Reciprocating pump

A

c) Centrifugal pump

96
Q

What is the main function of the impeller in a centrifugal pump?
a) To convert fluid energy into mechanical energy
b) To regulate flow rate
c) To increase fluid velocity
d) To prevent cavitation

A

a) To convert fluid energy into mechanical energy

97
Q

Which type of turbine is most suitable for low-flow, high-head applications?
a) Pelton turbine
b) Kaplan turbine
c) Francis turbine
d) Cross-flow turbine

A

c) Francis turbine

98
Q

What is the primary advantage of using a regenerative turbine pump?
a) Low initial cost
b) High efficiency
c) Ability to handle solids
d) Self-priming capability

A

d) Self-priming capability

99
Q

Which type of pump is commonly used in oil refineries for transferring crude oil?
a) Centrifugal pump
b) Gear pump
c) Diaphragm pump
d) Reciprocating pump

A

b) Gear pump

100
Q

What is the main function of the draft tube in a turbine?
a) To increase pressure
b) To regulate flow rate
c) To decrease pressure
d) To prevent cavitation

A

c) To decrease pressure

MACHINERY (FELFEL) (12 decks)

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