Reading, schematics and symbols 102

Question 1

A schematic is made up of

Answer 1

Symbols and lines

Question 2

Double line drawings that showed the internal details of a pneumatic system are called

Answer 2

Cutaway drawings

Question 3

In a DC circuit the electron flow from

Answer 3

One Direction only

Question 4

A schematic drawing a triangle shape is used to represent all of the following except a(n)

Answer 4

Motor

Question 5

Which of the following is included in the five parts definition of a schematic

Answer 5

Shows how a system works

Question 6

On an electrical diagram, a dashed line indicates in

Answer 6

Exposed wire

Question 7

the symbol display represents a

Answer 7

Gauge

Question 8

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

Answer 8

Examine the actual circuit

Question 9

A well prepared schematic begins with a return to

Answer 9

Power source

Question 10

The one-way flow symbol shown below is from a(n) _____ schematic

Answer 10

Electrical

Question 11

Which display electrical symbol represents a transformer

Answer 11

4

Question 12

Which display electrical symbol shows normally closed contacts

Answer 12

4

Question 13

Which of the following devices is used to make or break electrical connections

Answer 13

Switch

Question 14

A device that uses electricity is called a

Answer 14

Load

Question 15

The best starting point for tracing an electric circuit is the

Answer 15

Power supply

Question 16

Wire diagram shows how the part of circuit are connected

Answer 16

Externally

Question 17

When several wires flows the same path, and they may be represented as a______ line on the drawing

Answer 17

Thick

Question 18

Which type of diagram, emphasizes connections between elements rather than flow

Answer 18

Wiring

Question 19

The schematic symbol shown below represents a _____ switch

Answer 19

Disconnected

Question 20

The the schematic symbol show below represents_____ contact

Answer 20

Normally open relay

Question 21

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

Answer 21

Valves

Question 22

Which display symbol represents a flange joint

Answer 22

4

Question 23

Which display symbol represent a screw tee fitting

Answer 23

3

Question 24

Which type of projection gives a right angle view of piping systems

Answer 24

Orthographic

Question 25

one disadvantage of welding joints, is that it?

Answer 25

May form slag inside the pipe

Question 26

A valve is used to______ in a piping system

Answer 26

Control the flow

Question 27

Which display symbol represents a global valve

Answer 27

2

Question 28

A check valve

Answer 28

Allows flow only One Direction

Question 29

Below represents a _______ valve

Answer 29

Screwed check

Question 30

What does the 2 represent when pipe and fitting size are indicated as follows 3" x 4 " x 2 "

Answer 30

Size of the branch line

Question 31

Both hydraulic and pneumatic systems

Answer 31

are Flow power systems

Question 32

In a flow power system a(n) _____ react to the pressure of the fluid and does the work

Answer 32

Actuator

Question 33

Which element of the hydraulic system keeps a vacuum from forming when the liquid levels drop

Answer 33

Reservoir

Question 34

The symbol show below represents a

Answer 34

Fix displacement compressor

Question 35

When equal force must be available in both direction a_____ cylinder actuator is used

Answer 35

Double end

Question 36

The composition symbol display includes the symbol for an

Answer 36

Electric motor

Question 37

If the fluid in a hydraulic or pneumatic system is used again, and again, it is called a(n) ______ system

Answer 37

closed

Question 38

Which of the symbols below indicates a solenoid operated valve

Answer 38

1

Question 39

The symbol below represents a

Answer 39

Fixed displacement, compressor

Question 40

The symbol below represents a

Answer 40

Cylinder

Question 41

In a refrigerator subsystem of an A/C and R System what is another term for an evaporator

Answer 41

Liquid chiller

Question 42

What does the display symbol represent?

Answer 42

Rotating compressor

Question 43

in an A/C and R system, thermostat, expansion valves, and ADR valves are used on ______ control

Answer 43

Direct

Question 44

In a refrigerator system, discharge line going from the compressor to the condenser carries

Answer 44

hot gas At high pressure

Question 45

A thermistors electrical resistance decreases as the

Answer 45

Temperature increases

Question 46

Fusion welding means joining two materials by ______ them together

Answer 46

Melting

Question 47

The basic method of using welding that use the squeeze in heat process is ______ welding

Answer 47

Resistance

Question 48

Standard dimensions for a weld

Answer 48

May appear in a legend on the welding diagram

Question 49

Welding is classified by the

Answer 49

Method of producing the heat

Question 50

Which type of world is designated by the symbol show below

Answer 50

spot