TPC 102

Question 1

A schematic is made up of:

Answer 1

Symbols and Lines

Question 2

Double line drawings that show the internal details of a pneumatic:

Answer 2

Cutaway drawings

Question 3

In a dc circuit, the electrons flow from:

Answer 3

One direction only

Question 4

Arrows are used on piping diagrams to indicate the:

Answer 4

Direction of flow

Question 5

In a piping system, the alternate flow pattern is indicated by a:

Answer 5

Supplementary diagram

Question 6

On an electrical diagram, a dashed line indicates:

Answer 6

Exposed wire

Question 7

Vent lines and drain lines are shown on a hydraulic schematic by:

Answer 7

Dashed lines

Question 8

If a schematic carries no legend, clues about it may be found in the parts list, drawings, and:

Answer 8

Engineer’s notes

Question 9

What is the last step in troubleshooting an electrical circuit when using a schematic:

Answer 9

Examine the actual circuit

Question 10

An electric circuit in which the current path goes from one load to the next is called a:

Answer 10

Series circuit

Question 11

An electric circuit that allows each load to be turned on or off independently of the others is a __________ circuit.

Answer 11

Parallel circuit

Question 12

A wiring diagram shows how the parts of a circuit are connected:

Answer 12

Externally

Question 13

Wires labeled “L” on a schematic:

Answer 13

Carry power from the source

Question 14

In the diagram shown below, the “FORWARD” button is marked:

Answer 14

FOR

Question 15

The flow of material in a piping system is controlled and adjusted by:

Answer 15

Valves

Question 16

Direction of flow in a piping system may be changed by an:

Answer 16

Elbow

Question 17

What part of the piping system connects two pipes of different diameter:

Answer 17

Reducer

Question 18

A valve is used to ___________ in a piping system:

Answer 18

Control the flow

Question 19

A cock valve is used to:

Answer 19

Turn flow on or off quickly

Question 20

A check valve:

Answer 20

Allows flow in only one direction

Question 21

Both hydraulic and pneumatic systems:

Answer 21

Are fluid power systems

Question 22

In a fluid power system, an _____________ reacts to the pressure of the fluid and does the work.

Answer 22

Actuator

Question 23

The basic symbol for a valve shows its connections, flow paths, and:

Answer 23

Functions

Question 24

Which element of a hydraulic braking system directs the flow of the brake fluid?

Answer 24

Valve

Question 25

If the fluid of a hydraulic or pneumatic is used again and again is called a ___________ system.

Answer 25

Closed

Question 26

In a refrigeration subsystem of an A/C and R system, what is another term for an evaporator:

Answer 26

Liquid Chiller

Question 27

In an A/C & R system, thermostatic expansion valves and ADR valves are used on __________ control.

Answer 27

Direct

Question 28

In a diagram for an electric control circuit, which of the following shows wiring to be installed at the site:

Answer 28

———- (Dashed lines)

Question 29

What solid-state device in an A/C system can amplify and switch signals:

Answer 29

Transistor

Question 30

Fusion welding means joining two materials by _________ them together.

Answer 30

Melting

Question 31

The basic method of fusion welding that uses the “squeeze-and-heat” process is __________ welding.

Answer 31

Resistance

Question 32

If the part is to be welded in the field, the weld symbol includes:

Answer 32

A Flag

Question 33

Standard dimensions for a weld:

Answer 33

May appear in a legend on the welding diagram