Motor controls study guide

Primary purpose of an equipment ground is __________.

• to protect equipment

• to ensure the equipment does not burn out

• to protect buildings

• to protect people

A __________ circuit is device that is used to keep a temporary input device closed to keep the system running.

• close control

• seal in

• open control

• peeled in

What type of overload uses a coil to sense level of motor current?

• electro-static

• coil

• power

• magnetic

What term determines the ability of a machine to provide more power than what it is rated for?

• service factor

• overload factor

• Working voltage direct current

• Fail safe device

What is the name of this schematic symbol?

• toggle switch

• time relay normally open

• limit switch

• pressure switch

A metal chassis that is not connected by a ground is touched by a current carrying conductor the metal chassis will become ____________.

• cold

• hot

• cherry red

• reverse biased

Never remove the grounding prong from an __________.

• DC plug

• electrical switch

• earth ground

• AC plug

When blocking energy flow from a power source __________ that source is the safest choice.

• tagging out

• locking out

• turning off

• asking your supervisor about

The person who removes the LOTO is ___________.

• the supervisor

• whoever will work on it the next shift

• the person who put it in place

• the operator

What conductor provides a common return path to the source for the conductors that carry current for the system?

• ground

• hot lead

• red wire

• neutral