ELEC-10001 Quiz Relay nameplates

What information is typically found on a relay nameplate?

• Ratings for the operational coil's requirements

• The color of the relay

• The weight of the relay

• The manufacturer’s logo

Which of the following is NOT included on a relay nameplate?

• The numbering of contact terminals

• The manner in which the contacts are arranged

• The current draw of the coil

• The ratings of the contacts controlled by the coil

Why is the coil current rating not normally included on a relay?

• The current draw of a coil is typically small

• It is too expensive to include

• It is irrelevant to the relay's function

• It changes frequently

What must a relay coil voltage rating match?

• The voltage of the control circuit

• The voltage of the power supply

• The voltage of the battery

• The voltage of the light bulb

What types of voltage ratings can be printed on a relay?

• Only AC ratings

• Only DC ratings

• Both DC and AC ratings

• Neither DC nor AC ratings

Which of the following is NOT a type of rating mentioned for relay contacts?

• Voltage ratings

• Current ratings for continuous use

• NEMA pilot duty ratings

• Thermal ratings

What do the ratings on a relay contact list?

• Only voltage ratings

• Continuous current and make and break current ratings

• Only NEMA ratings

• Only IEC classifications

What does "SPST-NO" stand for in relay contact arrangements?

• Single-pole single-throw normally open

• Single-pole single-throw normally closed

• Single-pole double-throw

• Double-pole single-throw

Which form describes a single-pole single-throw normally closed contact arrangement?

• Form A

• Form B

• Form C

• Form D

What is the description for a Form C contact arrangement?

• Single-pole single-throw normally open

• Single-pole single-throw normally closed

• Single-pole double-throw

• Double-pole double-throw