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Flashcards in Test Review Deck (20)
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1

How many types of hydraulic pipe diagrams are there and what are they?

4

Cut-away diagram
Pictorial diagram
Schematic diagram
Combination diagram

2

What are the two general types of piping diagrams?

Single line and double line

3

What is an isometric projection?

An angular view showing three dimensions

4

What is a legend?

A list of lines and symbols on blueprints

5

What are the three types of electrical circuit diagrams?

one-line diagrams
schematic diagrams
wiring diagrams

6

What does a one-line electrical diagram show?

An interconnection or route of power flow without regard to the actual number of wires or phases

7

What does an electrical schematic diagram show?

It show more detail than a one-line diagram and no attempt is made to arrange the symbols to show their actual physical relationship to the different parts of the apparatus

8

What does a wiring diagram show?

It is a wiring instruction

9

In general, which type of electrical diagram show the most detail?

Schematic

10

What is Ohm’s Law?

V=IxR

11

What makes it possible to condense great detail into drawings?

Device numbers and symbols

12

What state are electrical drawings shown in?

De-energized state

13

What is device number 43?

Manual transfer or selector device

14

What is device number 20?

Electrically operated valve

15

What is device number 42?

Running circuit breaker (motor starter)

16

What is device number 63?

Pressure switch

17

What is device number 26?

Apparatus thermal device

18

What is device number 2?

Time delay starting or closing relay

19

What is device number 4?

Master contractor

20

What is device number 14?

Underspeed device