Drawing & Basic Circuits Flashcards

1
Q

Describe a Normally Open Pushbutton:

A

Momentary contact device that closes when pressed

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2
Q

Describe an Overload Heater:

A

Opens a set of contacts at a predetermined temperature or thermal level

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3
Q

Describe a Solenoid:

A

Electromagnetic actuating device

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4
Q

Is a two-position selector switch an example of a momentary or maintained switch?

A

A Maintained contact switch

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5
Q

The four basic types of Electrical drawings are:

A

Block, Wiring, Schematic and Interconnection

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6
Q

Block diagrams show conceptual relationships between equipment or between systems. The relationship between equipment or systems may be described as

A

Physical - showing difference in elevation
Hierarchical - showing speed of response
Typical - showing how types of components are related in an installation

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7
Q

Schematic Diagrams are sometimes call what other sort of diagrams

A

Elementary Diagrams

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8
Q

IEC-Style Schematic drawings are presented in a horizontal or a vertical layout?

A

Vertical

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9
Q

Termination schedules or pin-out diagrams can be categorized as what sort of diagrams?

A

Interconnection

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10
Q

Which type of drawing would be most useful to determine on which floor of a high-rise building to install a particular panelboard?

A

Block Diagram

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11
Q

Numbers located along the right-hand side of a NEMA horizontal rung schematic diagram indicate the:

A

Contact location

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12
Q

A schematic diagram representing a stop/start control circuit for a motor has three basic sections. These are:

A

Stop circuit
Start circuit
Holding circuit

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13
Q

The effect of the interlock contacts depends upon their _________ in the control circuit

A

Location

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14
Q

Contacts connected in the holding circuit affect the ___________ of the motor

A

Running

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15
Q

How is a start button contact connected with respect to the stop button contact?

A

Connected in SERIES

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