PUMPS 1-20

Question 1

What is the primary function of a pump?
a) Increase pressure
b) Decrease pressure
c) Mix fluids
d) Generate heat

Answer 1

a) Increase pressure

Question 2

Which of the following is NOT a type of pump?
a) Centrifugal pump
b) Diaphragm pump
c) Positive displacement pump
d) Ejector pump

Answer 2

d) Ejector pump

Question 3

What type of pump is commonly used in household
water supply systems?
a) Centrifugal pump
b) Gear pump
c) Peristaltic pump
d) Axial flow pump
Answer:

Answer 3

a) Centrifugal pump

Question 4

Which principle explains the operation of a
centrifugal pump?
a) Pascal’s law
b) Archimedes’ principle
c) Bernoulli’s principle
d) Boyle’s law

Answer 4

c) Bernoulli’s principle

Question 5

What is the main advantage of using a positive
displacement pump?
a) High flow rate
b) Low initial cost
c) Self-priming capability
d) Precise control of flow rate

Answer 5

d) Precise control of flow rate

Question 6

Which of the following pumps is suitable for
handling viscous fluids?
a) Centrifugal pump
b) Gear pump
c) Axial flow pump
d) Jet pump

Answer 6

b) Gear pump

Question 7

What is cavitation in the context of pumps?
a) Formation of air bubbles in the pump
b) Overheating of the pump
c) Loss of prime in the pump
d) Excessive vibration of the pump

Answer 7

a) Formation of air bubbles in the pump

Question 8

What is the primary disadvantage of using a
diaphragm pump?
a) Limited suction lift capability
b) High energy consumption
c) Susceptibility to cavitation
d) Inability to handle abrasive fluids

Answer 8

a) Limited suction lift capability

Question 9

Which type of pump is commonly used in food
processing industries?
a) Centrifugal pump
b) Diaphragm pump
c) Peristaltic pump
d) Reciprocating pump

Answer 9

c) Peristaltic pump

Question 10

What is the purpose of a pump seal?
a) To regulate flow rate
b) To prevent leakage
c) To increase pressure
d) To reduce cavitation

Answer 10

b) To prevent leakage

Question 11

Which of the following is a characteristic of a
multistage pump?
a) Low efficiency
b) Low discharge pressure
c) High flow rate
d) Single impeller

Answer 11

c) High flow rate

Question 12

What type of pump is commonly used in firefighting
applications?
a) Centrifugal pump
b) Gear pump
c) Jet pump
d) Peristaltic pump

Answer 12

a) Centrifugal pump

Question 13

Which pump is typically used for metering precise
amounts of fluid?
a) Centrifugal pump
b) Diaphragm pump
c) Gear pump
d) Axial flow pump

Answer 13

b) Diaphragm pump

Question 14

What is the primary advantage of using a submersible
pump?
a) Easy maintenance
b) Low energy consumption
c) Ability to handle high temperatures
d) Ability to operate in submerged conditions

Answer 14

d) Ability to operate in submerged conditions

Question 15

Which of the following pumps is NOT suitable for
handling abrasive fluids?
a) Centrifugal pump
b) Diaphragm pump
c) Gear pump
d) Peristaltic pump

Answer 15

a) Centrifugal pump

Question 16

What is the main function of a pump impeller?
a) To increase pressure
b) To decrease pressure
c) To regulate flow rate
d) To convert mechanical energy into kinetic energy

Answer 16

d) To convert mechanical energy into kinetic energy

Question 17

Which pump is commonly used for oil and gas
extraction?
a) Centrifugal pump
b) Reciprocating pump
c) Screw pump
d) Jet pump

Answer 17

c) Screw pump

Question 18

What is the term for the maximum height a pump can
lift a fluid?
a) Discharge head
b) Suction lift
c) Cavitation head
d) Total dynamic head

Answer 18

b) Suction lift

Question 19

Which of the following is NOT a factor affecting the
efficiency of a pump?
a) Fluid viscosity
b) Pump speed
c) Impeller diameter
d) Ambient temperature

Answer 19

d) Ambient temperature

Question 20

What is the primary purpose of a pump casing?
a) To support the impeller
b) To increase pressure
c) To prevent leakage
d) To direct fluid flow

Answer 20

d) To direct fluid flow