MACHINERY

Question 1

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

Answer 1

c) Diagonal flow pump

Question 2

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

Answer 2

b) Centrifugal pump

Question 3

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

Answer 3

d) To generate mechanical energy from fluid flow

Question 4

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.

Answer 4

d) They require a priming process before operation.

Question 5

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

Answer 5

c) Self-priming capability

Question 6

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

Answer 6

b) Kaplan turbine

Question 7

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

Answer 7

d) To produce a high flow rate

Question 8

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

Answer 8

b) Centrifugal pump

Question 9

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

Answer 9

c) They create a pulsating flow.

Question 10

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

Answer 10

c) At the outlet

Question 11

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

Answer 11

b) Kaplan turbine

Question 12

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

Answer 12

d) Difficulty in handling viscous fluids

Question 13

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

Answer 13

b) Ability to handle abrasive fluids

Question 14

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

Answer 14

c) Diaphragm pump

Question 15

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

Answer 15

b) To convert kinetic energy into pressure

Question 16

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

Answer 16

c) Gear pump

Question 17

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

Answer 17

a) Higher efficiency

Question 18

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

Answer 18

c) Francis turbine

Question 19

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

Answer 19

b) Gear pump

Question 20

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

Answer 20

a) To generate electricity from high-pressure fluid

Question 21

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

Answer 21

c) Gear pump

Question 22

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

Answer 22

c) Axial flow pump

Question 23

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

Answer 23

b) Pulsating flow

Question 24

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

Answer 24

c) Francis turbine

Question 25

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

Answer 25

b) To convert kinetic energy into pressure

Question 26

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

Answer 26

b) Gear pump

Question 27

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.

Answer 27

b) They have a small footprint.

Question 28

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

Answer 28

d) Can be operated without priming

Question 29

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

Answer 29

d) Centrifugal pump

Question 30

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

Answer 30

c) To convert fluid energy into mechanical energy

Question 31

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

Answer 31

b) Kaplan turbine

Question 32

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

Answer 32

a) High head

Question 33

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

Answer 33

a) Reciprocating pump

Question 34

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

Answer 34

c) Higher flow rates

Question 35

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

Answer 35

b) Kaplan turbine

Question 36

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

Answer 36

c) To provide a sealing surface

Question 37

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

Answer 37

b) Gear pump

Question 38

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

Answer 38

c) To decrease pressure

Question 39

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.

Answer 39

kammo HAHAHAHHAHA

Question 40

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

Answer 40

b) Diaphragm pump

Question 41

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

Answer 41

d) Higher efficiency

Question 42

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

Answer 42

d) Cross-flow turbine

Question 43

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

Answer 43

c) To convert kinetic energy into pressure

Question 44

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

Answer 44

d) Centrifugal pump

Question 45

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

Answer 45

b) High efficiency

Question 46

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

Answer 46

c) Francis turbine

Question 47

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

Answer 47

a) To convert fluid energy into mechanical energy

Question 48

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

Answer 48

d) Inability to handle solids

Question 49

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

Answer 49

d) Self-priming capability

Question 50

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

Answer 50

c) Diaphragm pump

Question 51

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

Answer 51

d) Suitable for high-viscosity fluids

Question 52

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

Answer 52

b) Kaplan turbine

Question 53

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

Answer 53

c) Inability to handle solids

Question 54

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

Answer 54

d) Centrifugal pump

Question 55

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

Answer 55

b) To convert kinetic energy into pressure

Question 56

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

Answer 56

a) Pelton turbine

Question 57

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

Answer 57

d) Reduced risk of leakage

Question 58

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

Answer 58

a) Gear pump

Question 59

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

Answer 59

c) To convert kinetic energy into pressure

Question 60

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

Answer 60

a) Pelton turbine

Question 61

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

Answer 61

a) High efficiency at low flow rates

Question 62

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

Answer 62

b) To prevent backflow

Question 63

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

Answer 63

d) Cross-flow turbine

Question 64

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

Answer 64

d) Self-priming capability

Question 65

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

Answer 65

c) Centrifugal pump

Question 66

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

Answer 66

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

Question 67

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

Answer 67

b) Kaplan turbine

Question 68

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

Answer 68

a) High energy consumption

Question 69

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

Answer 69

c) Gear pump

Question 70

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

Answer 70

c) Self-priming capability

Question 71

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

Answer 71

d) Cross-flow turbine

Question 72

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

Answer 72

c) To convert kinetic energy into pressure

Question 73

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

Answer 73

c) Centrifugal pump

Question 74

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

Answer 74

a) To convert fluid energy into mechanical energy

Question 75

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

Answer 75

c) Francis turbine

Question 76

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

Answer 76

b) High efficiency

Question 77

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

Answer 77

b) Gear pump

Question 78

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

Answer 78

c) To decrease pressure

Question 79

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

Answer 79

a) Pelton turbine

Question 80

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

Answer 80

d) Centrifugal pump

Question 81

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

Answer 81

d) Suitable for high-viscosity fluids

Question 82

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

Answer 82

b) Kaplan turbine

Question 83

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

Answer 83

c) Inability to handle solids

Question 84

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

Answer 84

a) Gear pump

Question 85

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

Answer 85

b) To convert kinetic energy into pressure

Question 86

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

Answer 86

b) Kaplan turbine

Question 87

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

Answer 87

a) High efficiency at low flow rates

Question 88

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

Answer 88

b) To prevent backflow

Question 89

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

Answer 89

c) Francis turbine

Question 90

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

Answer 90

c) To increase fluid velocity

Question 91

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

Answer 91

d) Centrifugal pump

Question 92

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

Answer 92

a) High efficiency

Question 93

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

Answer 93

d) Cross-flow turbine

Question 94

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

Answer 94

c) To convert kinetic energy into pressure

Question 95

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

Answer 95

c) Centrifugal pump

Question 96

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

Answer 96

a) To convert fluid energy into mechanical energy

Question 97

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

Answer 97

c) Francis turbine

Question 98

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

Answer 98

d) Self-priming capability

Question 99

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

Answer 99

b) Gear pump

Question 100

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

Answer 100

c) To decrease pressure