Line C Flashcards
List three types of single-line diagrams.
Schematic, block, riser
Which of the following is not a single line diagram?
a. block diagram
b. riser diagram
c. wiring diagram
d. one-line diagram
c. wiring diagram
The main function of a block diagram is to show
a. how to wire a circuit
b. where to install the electrical blocks
c. the major components in the circuit
d. how the circuit works
c. the major components in the circuit
A power riser diagram is used to:
identify the power source for a circuit.
show the incremental power increases within a circuit.
identify electrical devices on each floor of a building.
show how electrical power is distributed throughout a building.
show how electrical power is distributed throughout a building.
List three conventions for designing a schematic diagram (LT6, ST2)
Show the power source at the top of the page
Arrange the components from left to right
Identify each of the components with a reference designation
The main function of a schematic diagram is to show:
a. how to wire a circuit
b. where to install the electrical blocks
c. the major components in the circuit
d. how the circuit works
d. how the circuit works
A schematic diagram shows the electrical relationship between components in a circuit, while a wiring diagram shows how components are actually wired.
true
In order to convert a wiring diagram into a schematic diagram, what is a preferred method of identifying the various wires? (LT6, ST2)
Use a numbering system to identify each of the wires and associated terminals
The main function of a wiring diagram is to show:
a. how to wire a circuit
b. where to install the electrical blocks
c. the major components in the circuit
d. how the circuit works
a. how to wire a circuit
The main advantage of a wiring diagram over a schematic diagram is that it is simpler.
True or False?
False
What is the main advantage of a pictorial drawing? (LT7, ST3)
The main advantage of a pictorial drawing is that it gives a quick mental image of what an object actually looks like.
What is the schematic symbol for a single cell battery?
-I I-
Name the three main types of pictorial drawings. (LT7 ST3)
oblique
isometric
perspective
What is a two-point perspective? (LT7, ST3)
a perspective with two vanishing points
Because of certain advantages, what type of pencil is often preferred for drawing diagrams
Mechanical pencil
Indicate which of the following attributes apply to pictorial drawings and which apply to two-dimensional orthographic projections. (LT7, ST3)
a. shows object as it really appears
b. distorts at least part of an object
c. shows only one surface at a time
d. shows the true shape of an object
Pictorial drawing:
a. shows object as it really appears
b. distorts at least part of an object
Two-dimensional (Orthographic) drawing:
c. shows only one surface at a time
d. shows the true shape of an object
When drawing lines on diagrams such as schematics, what is the significance of a dashed line
It signifies a mechanical linkage or physical connection between components
To describe an object using two-dimensional orthographic projections, how many views are used? (LT7, ST3)
a. two
b. three
c. four
d. six
e. as many as needed
e. as many as needed
When drawing lines on diagrams such as schematics, what is the significance of a Heavy (thicker) line
Used for emphasis, such as a power circuit line compared to a control circuit line
What is an orthographic projection? (LT7, ST3)
An orthographic projection is a drawing that combines the top, front, left side, right side, back, and bottom views of an object on a single page.
Because orthographic projections are drawn to scale, it is not necessary to include dimensions. (LT7, ST3)
False
What is a template used for?
Used for drawing symbols, shapes or letters on a diagram
What is the significance of using a dot when drawing lines on a diagram?
signifies an electrical connection of multiple lines on a diagram
To show the information needed to actually fabricate an object, the best type of drawing is a(n): (LT7, ST3)
a. oblique pictorial
b. one-point perspective
c. orthographic projection
d. isometric pictorial
e. two-point perspective
c. orthographic projection