Quiz 1

The conductors of a single phase are not permitted to be run in metallic conduit because _________ currents will be induced.

• eddy
• series
• parallel
• superconducting

In a basic air-conditioning circuit there are two _____ switches in order to protect the compressor from extremes.

• pressure
• temperature
• flow
• float

All overload relays contain two separate sections, the ______ section and the control contact section.

• voltage-sensing
• voltage-modulating
• current-sensing
• resistance-modulating

diagrams show components in their electrical sequence without regard for physical location.

• Wiring
• Schematic
• Control
• One line

If a contact is to be drawn it is drawn _________ so that the movable contact is above and touching the stationary contact.

• normally closed
• normally open
• normally open held closed
• normally closed held open

A magnetic contactor or relay is basically an electrical __________ that closes a set of contacts when the coil is energized.

• bar magnet
• pole
• dipole magnet
• solenoid

There are two types of thermal overload relays, the ______ type and the bimetal strip type.

• transistor
• solder pot
• rheostat
• serrated wheel

A pressure switch is drawn by connecting a _________ to a line.

• rectangle
• square
• semicircle
• triangle

_______ are intended to open the circuit when the current exceeds the full-load current rating of the motor by 115 percent to 125 percent.

• Fuses
• Overloads
• Circuit breakers
• Trip wires

If you have a raceway with 35 current-carrying conductors, by what adjustment factor must you multiply the ampacity?

• 0.2
• 0.3
• 0.4
• 0.5