NAVEDTRA 14040, BLUEPRINT READING AND SKETCHING Chapter 6

Question 1

Which type of wiring diagram is made up of pictorial sketches of the various parts of an item of equipment and the electrical connections between the parts? (Page 6-1)

Answer 1

Pictorial

Question 2

Which type of wiring diagram shows the outline of a ship or aircraft or other structure, and the location of equipment such as panels, connection boxes, and cable runs? (Page 6-1)

Answer 2

Isometric

Question 3

Which type of diagram uses lines and graphic symbols to simplify complex circuits or systems? (Page 6-1)

Answer 3

Single-line

Question 4

Which type of diagram uses graphic symbols to show how a circuit functions electrically? (Page 6-1)

Answer 4

Schematic

Question 5

Which type of wiring diagram shows how each individual conductor is connected within the various connection boxes of an electrical circuit or system? (Page 6-1)

Answer 5

Elementary

Question 6

Which type of diagram are the major components of equipment or a system represented by squares, rectangles, or other geometric figures, and the normal order of progression of a signal or current flow is represented by lines? (Page 6-1)

Answer 6

Block

Question 7

All similar units in the ship comprise a group, and each group is assigned a separate series of consecutive numbers beginning with what? (Page 6-1)

Answer 7

1

Question 8

What embossed with the cable designations are used to identify all permanently installed shipboard electrical cables? (Page 6-2)

Answer 8

Metal tags

Question 9

Navy ships use two systems of cable marking; the old system on prior to ships built in what year, and the new system on those built since then? (Page 6-2)

Answer 9

1949

Question 10

The new cable tag system consists of three parts in sequence; source, voltage, and what else, and where practical, destination? (Page 6-3)

Answer 10

Service

Question 11

Neutral polarity, where it exists, is identified by the conductor of what color? (Page 6-4)

Answer 11

White

Question 12

What is the actual installation diagram for the deck or decks shown and is used chiefly in ship construction? (Page 6-5)

Answer 12

Wiring deck plan

Question 13

Wiring deck plans are drawn to scale (usually 1⁄4 inch to the foot), and they show the exact location of all fixtures. One blueprint usually shows from 150 to how many feet of space on one deck only? (Page 6-5)

Answer 13

200

Question 14

Which type of diagram for a particular piece of electrical equipment shows the relative position of the various components of the equipment and how each individual conductor is connected in the circuit? (Page 6-6)

Answer 14

Wiring

Question 15

Which type of diagram describes the electrical operation of a particular piece of equipment, circuit, or system? (Page 6-7)

Answer 15

Electrical schematic

Question 16

What are similar to electrical prints, but they are usually more difficult to read because they represent more complex circuitry and systems? (Page 6-11)

Answer 16

Electronics prints

Question 17

What system is an electronic air navigation system that provides a properly equipped aircraft with bearing and distance from a shipboard or ground radio beacon selected by the pilot? (Page 6-11)

Answer 17

TACAN

Question 18

Electronic schematic diagrams use graphic symbols from what for all parts, such as tubes, transistors, capacitors, and inductors? (Page 6-12)

Answer 18

ANSI Y32.2

Question 19

What is a combination of letters and numbers used to identify the various parts and components on electronic drawings, diagrams, parts lists, and so on? (Page 6-16)

Answer 19

Reference designation

Question 20

What is defined as two or more sets and other assemblies, subassemblies, and parts necessary to perform an operational function or functions? (Page 6-17)

Answer 20

System

Question 21

What is defined as one or more units and the necessary assemblies, subassemblies, and parts connected or associated together to perform an operational function? (Page 6-18)

Answer 21

Set

Question 22

Individual conductors connecting to terminal boards are tagged with a vinyl sleeving called what that shows the terminal board and terminal to which the outer end of the conductor is connected? (Page 6-20)

Answer 22

Spaghetti

Question 23

Aircraft electronic wiring diagrams fall into two basic classes: chassis wiring diagrams and which other type of diagrams? (Page 6- 21)

Answer 23

Interconnecting

Question 24

Which type of devices such as synchros, gyros, accelerometers, autotune systems, an analog computing elements are quite common in avionics systems? (Page 6-21)

Answer 24

Electromechanical

Question 25

Which type of diagrams are used in the operation and maintenance of digital computers? (Page 6-22)

Answer 25

Logic

Question 26

What are the symbolic logic operations used in digital computers that are based on the investigations of George Boole and the resulting algebraic system called? (Page 6-22)

Answer 26

Boolean algebra

Question 27

What are the three basic operations used by Boolean algebra? (Page 6-22)

Answer 27

AND, OR, and NOT

Question 28

Which type of diagrams show all logic functions of the equipment concerned? (Page 6-24)

Answer 28

Detailed logic