Question 1

Viscosity is a term used to describe:&#10;A)pressure less than atmospheric pressure.&#10;B)the measure of a fluid's resistance to flow.&#10;C)the weight of a substance compared to the weight of an equal volume of water/gas.&#10;D)the amount of energy exerted on a type of fluid at any given location in a piping system.

Accepted Answer

Viscosity refers to the measure of a fluid's resistance to flow, indicating how thick or thin the fluid is.

Question 2

How does centrifugal force affect an object?&#10;A)causes objects moving in a circular motion to be forced toward the middle of rotation.&#10;B)causes objects moving in a circular motion to be forced upward.&#10;C)causes objects moving in a circular motion to be forced downward.&#10;D)causes objects moving in a circular motion to be forced away from center of rotation.

Accepted Answer

Centrifugal force is a fictitious force that appears to act on objects moving in a circular path, causing them to be pushed away from the center of rotation. This is due to the inertia of the object, which resists the change in direction of motion, giving the sensation of being pushed outward.

Question 3

A conventional pressure gauge lying on a table at sea level at 70 &#176; F will register as:&#10;A)2&#10;B)1&#10;C)0&#10;D)3

Accepted Answer

A conventional pressure gauge measures the difference between the atmospheric pressure and a vacuum. At sea level, it is designed to read zero when it is not connected to any pressure source, regardless of the ambient temperature.

Question 4

Static discharge is a process where a gas bubble is introduced into the suction side of the pump, where it expands due to low pressure.

Accepted Answer

Static discharge refers to the release of accumulated static electricity, not the introduction of a gas bubble into a pump.

Question 5

What is the normal atmospheric pressure at sea level at 70 &#176; F?&#10;A)17.4 psia&#10;B)15.2 psia&#10;C)14.7 psia&#10;D)19.5 psia

Accepted Answer

The normal atmospheric pressure at sea level is 14.7 pounds per square inch absolute (psia), which is equivalent to 101.325 kPa or 1 atm.

Question 6

What type of pump allows a technician to remove a section of the pump housing so that internal parts can be replaced without disturbing the piping?&#10;A)vertical drive&#10;B)split-case&#10;C)submersible&#10;D)conventional coupled shaft

Accepted Answer

Split-case pumps are designed to allow a technician to remove a section of the pump housing to replace internal parts without the need to disturb the piping, making maintenance easier and more efficient.

Question 7

Absolute pressure is the gauge pressure minus the pressure of the atmosphere.

Accepted Answer

Absolute pressure is the sum of gauge pressure and atmospheric pressure.

Question 8

Head is a term used to describe the amount of energy exerted on a type of fluid at any given location in a piping system.

Accepted Answer

Head refers to the energy per unit weight of fluid due to its position in a system, which can influence the fluid's pressure, velocity, and height, affecting its flow and distribution in piping systems.

Question 9

Which of the following terms describes the elevation of the surface of the source above the pump inlet minus the friction head of the suction pipe?&#10;A)specific gravity&#10;B)friction head&#10;C)suction lift&#10;D)suction head

Accepted Answer

Suction head refers to the elevation of the source of fluid above the pump inlet, minus the friction head losses in the suction pipe. It is a measure of the pressure required to draw fluid into the pump and is crucial for ensuring the pump operates within its capabilities.

Question 10

What is the term for the process where the outermost fluid tends to cling to the inside wall of a pipe?&#10;A)friction head&#10;B)vacuum&#10;C)density&#10;D)dynamic suction

Accepted Answer

Friction head refers to the loss of pressure or head due to the friction between a fluid and the walls of the pipe through which it is flowing. This term is relevant to the description given, as it involves the interaction between the fluid and the pipe's interior surfaces.

Question 11

Which of the following pumps is most similar in design to that of a turbine pump?&#10;A)vertical drive&#10;B)submersible&#10;C)conventional couple shaft&#10;D)split-case

Accepted Answer

The answer of Which of the following pumps is most...

Question 12

The weight of a substance compared to the weight of an equal volume of water for liquids, or air for gases is referred to as:&#10;A)viscosity&#10;B)specific gravity&#10;C)absolute pressure&#10;D)density

Accepted Answer

The answer of The weight of a substance compared to...

Question 13

Which pump would be best for handling liquids that contain larger solids?&#10;A)closed impeller pump&#10;B)open impeller pump&#10;C)semi-open impeller pump&#10;D)centrifugal impeller pump

Accepted Answer

The answer of Which pump would be best for handling...

Question 14

Which type of pump incorporates a series of small blades or fins on the perimeter of a rotating disk?&#10;A)rotary pump&#10;B)reciprocating pump&#10;C)turbine pump&#10;D)centrifugal pump

Accepted Answer

The answer of Which type of pump incorporates a series...

Question 15

Which pump combines a centrifugal pump with a device that causes a venturi effect?&#10;A)jet pump&#10;B)impeller pump&#10;C)turbine pump&#10;D)rotary pump

Accepted Answer

The answer of Which pump combines a centrifugal pump with...

Deck 11: Pumps