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4TH Final > Reading, schematics and symbols 102 > Flashcards

Reading, schematics and symbols 102 Flashcards

1
Q

A schematic is made up of

A

Symbols and lines

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2
Q

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

A

Cutaway drawings

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3
Q

In a DC circuit the electron flow from

A

One Direction only

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4
Q

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

A

Motor

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5
Q

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

A

Shows how a system works

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6
Q

On an electrical diagram, a dashed line indicates in

A

Exposed wire

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7
Q

the symbol display represents a

A

Gauge

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8
Q

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

A

Examine the actual circuit

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9
Q

A well prepared schematic begins with a return to

A

Power source

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10
Q

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

A

Electrical

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11
Q

Which display electrical symbol represents a transformer

A

4

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12
Q

Which display electrical symbol shows normally closed contacts

A

4

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13
Q

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

A

Switch

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14
Q

A device that uses electricity is called a

A

Load

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15
Q

The best starting point for tracing an electric circuit is the

A

Power supply

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16
Q

Wire diagram shows how the part of circuit are connected

A

Externally

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17
Q

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

A

Thick

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18
Q

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

A

Wiring

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19
Q

The schematic symbol shown below represents a _____ switch

A

Disconnected

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20
Q

The the schematic symbol show below represents_____ contact

A

Normally open relay

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21
Q

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

A

Valves

22
Q

Which display symbol represents a flange joint

A

4

23
Q

Which display symbol represent a screw tee fitting

A

3

24
Q

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

A

Orthographic

25
Q

one disadvantage of welding joints, is that it?

A

May form slag inside the pipe

26
Q

A valve is used to______ in a piping system

A

Control the flow

27
Q

Which display symbol represents a global valve

A

2

28
Q

A check valve

A

Allows flow only One Direction

29
Q

Below represents a _______ valve

A

Screwed check

30
Q

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

A

Size of the branch line

31
Q

Both hydraulic and pneumatic systems

A

are Flow power systems

32
Q

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

A

Actuator

33
Q

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

A

Reservoir

34
Q

The symbol show below represents a

A

Fix displacement compressor

35
Q

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

A

Double end

36
Q

The composition symbol display includes the symbol for an

A

Electric motor

37
Q

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

A

closed

38
Q

Which of the symbols below indicates a solenoid operated valve

A

1

39
Q

The symbol below represents a

A

Fixed displacement, compressor

40
Q

The symbol below represents a

A

Cylinder

41
Q

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

A

Liquid chiller

42
Q

What does the display symbol represent?

A

Rotating compressor

43
Q

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

A

Direct

44
Q

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

A

hot gas At high pressure

45
Q

A thermistors electrical resistance decreases as the

A

Temperature increases

46
Q

Fusion welding means joining two materials by ______ them together

A

Melting

47
Q

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

A

Resistance

48
Q

Standard dimensions for a weld

A

May appear in a legend on the welding diagram

49
Q

Welding is classified by the

A

Method of producing the heat

50
Q

Which type of world is designated by the symbol show below

A

spot

4TH Final (7 decks)

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