Reading Schematics Flashcards

1
Q

A schematic is made up of

Graph the numbers
Pictures and charts
Symbols and lines
Symbols and words

A

Symbols and lines

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2
Q

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

Blue prints
Cutaway drawings
Pictorial diagrams
Supplementary diagrams

A

Cutaway drawings

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3
Q

In a DC circuit, the electrons flow from

Lower to higher voltage
Positive to negative
One Direction only
Two directions, continuously, reversing

A

One Direction only

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4
Q

Arrows are used on piping diagrams to indicate the

Direction of flow
Placement of welds
Pressure points
Valve locations

A

Direction of flow

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5
Q

In a piping system, an alternate flow pattern is indicated by a

Set of blue prints
Supplementary diagram
Symbol legend
Written explanation

A

Supplementary diagram 

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6
Q

On an electric diagram, a dashed line indicates a

Broken cable
Exposed wire
Fused connection
Ground connection

A

Exposed wire

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7
Q

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

Dashed lines
Dotted lines
Lines and arrows
Solid lines

A

Dashed lines 

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8
Q

If a schematic carries no legend, clues about it may be found in the Paris list, drawing, title, and

Blue prints
Cutaway drawings
Engineers notes
Supplementary diagram

A

Engineers notes

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9
Q

The symbol displayed represents a

Gauge
Motor
Pump
Voltmeter 

A

Gauge

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10
Q

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

Examine the actual circuit
Identify the system
State the problem
Thank of possible problem areas

A

Exam and the actual circuit

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11
Q

Which displayed electrical symbol represents connecting wires
A
B
C
D

A

C

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12
Q

Which displayed electrical symbol represents an SPDT switch?

A
B
C
D

A

A

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13
Q

Which displayed electrical symbol represents a transformer?

A
B
C
D

A

D

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14
Q

Which displayed electrical symbol represents a fuse?

A
B
C
D

A

C

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15
Q

Which displayed electrical symbol shows NC contacts?

A
B
C
D

A

D

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16
Q

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

Complete
Grounded
Parallel
Series

A

Series

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17
Q

An electric circuit that allows each load to be turned on or off independently of others, is a_______ circuit

Complete
Grounded
Parallel
Series

A

Parallel 

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18
Q

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

Externally
Internally
In parallel
In series

A

Externally

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19
Q

Wires labeled L on a schematic

Carry power from the source
Carry low-voltage power
Connect a motor controller to the motor
Connect a motor to its load

A

Carry power from the source 

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20
Q

In the displayed diagram, the forward button is marked

F
F with circle around it
FOR
OL

A

FOR

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21
Q

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

Bushings
Couplings
Joints
Valves

A

Valves 

22
Q

Which displayed symbol represents a flanged joint

A
B
C
D

23
Q

Direction of flow in a piping system maybe changed by a(n)

Bushing
Elbow
Joint
Reducer

24
Q

What part of a piping system connects two pipes of different diameters?

Elbow
Reducer
Soldering joint

25
Which displayed symbol represents a screwed tee fitting A B C D
C
26
A valve is used to_______in a piping system Control the flow Increase pipe size Increase the temperature Reduce the cost
Control the flow 
27
A Cock valve is used to Prevent flow in one direction Open or close a pipe Regulate flow Turn off low on or off quickly
Turn flow on or off quickly 
28
Which displayed symbol represents a globe valve A B C D
B
29
A check valve Allows flow in only One Direction Opens or closes a pipe like a gate Regulates flow Turns flow on or off quickly
Allows flow and only One Direction 
30
In the symbol displayed, the 2 inch dimension is indicated by the letter 3in. X 4in x 2in A B C D
C
31
Both hydraulic and pneumatic systems Are fluid-power systems Handle gases Handle liquids Share the same basic components
Are fluid-power systems
32
In a fluid power system, a(n) _______ reacts to the pressure of the fluid and does the work Actuator Compressor Receiver Reservoir
Actuator 
33
The displayed symbol represents a______ in a_____ system Compressor; pneumatic Pump; hydraulic Receiver; pneumatic Reservoir; hydraulic
Receiver; pneumatic 
34
The basic symbol for a valve shows it’s connections, flow paths, and Functions How its parts are arranged Material Size
Functions
35
Which displayed symbol represents a valve in the closed position? A B C D
C
36
The composite symbol displayed includes the symbol for a(n) Bidirectional, pneumatic motor Unidirectional pneumatic motor Electric motor Internal combustion engine
Electric motor
37
Which element of a hydraulic braking system directs the flow of the brake fluid? Compressor Pump Reservoir Valve
Valve
38
If the fluid in a hydraulic or pneumatic system is used again, and again, it’s called a(n) _______ system Closed Cycling Open Unitary
Closed
39
On a hydraulic or pneumatic diagram, local areas are outlined by which of the following? A B C D
B
40
Which of the following symbols below indicates a solenoid operated device? A B C D
A
41
In a refrigeration system of an A/C and R system, what is another term for an evaporator? Air eliminator Heat exchanger Liquid chiller Vibration absorber
Liquid chiller 
42
What does the displayed symbol represent? Evaporative condenser Rotary compressor Steam turbine Vertical receiver
Rotary compressor 
43
In an A/C and R system, thermostatic expansion valves and ADR valves are used on______ control Direct Indirect Manual Sensing
Direct 
44
In a diagram for an electric control circuit, which of the following shows wiring to be installed at the site? A B C D
C
45
What solid-state device in an A/C system can amplify and switch electrical signals? Diode Thermoistor Transistor Transducer
Transistor 
46
“Fusion” welding means joining two materials by ________ them together Bolting Forcing Hammering Melting
Melting 
47
The basic method of fusion welding that uses the “ squeeze-and-heat” process is______ welding Arc Gas Resistance Thermal
Resistance 
48
Which of the following is a symbol for a weld with chamfering? A B C D
B
49
If the part is to be welded in the field, the weld should include a(n) Arrow Flag Solid circle at the bend The words “weld on site”
Flag 
50
Standard dimensions for a weld Always appear on the weld symbol May appear in a legend on the welding diagram Should be memorized before welding Are unimportant
May appear in a legend on the welding diagram