IDA-201 Final

If the voltage supplied to the motor is well below the motor rated voltage, the current draw will be ____ it should be.

• higher than
• lower than
• the same as
• in reverse polarity than

The voltage tolerance of a standard electric motor is ____.

• +10% -10%
• +5% -10%
• +10% -5%
• +15% -15%

The locked-rotor amperage is normally ____ times as great as the run-load amperage.

• 5
• 2
• 3
• 10

A sleeve bearing would typically be used in a motor that operates with a ____.

• light load and where noise is a factor
• heavy load and where noise is a factor
• heavy load in a dirty atmosphere
• heavy load in a moist atmosphere

A slotted screw at the bottom of the bearing housing is called a ____.

• relief plug
• purge screw
• drain plug
• retaining screw

A direct-drive motor is usually connected to a load with a ____.

• coupling
• cradle mount
• rigid base mount
• pulley

Grounding straps are required on resilient mounted motors to ____.

• ground the motor in case of winding failure
• prevent rotation of the motor in the mount
• help reduce motor vibration transfer to the object on which the motor is mounted
• act as the position for locating the motor leads

A motor can burn out if the supply voltage is either too high or too low.

• True
• False

One method a technician can employ to check a motor is to take amperage readings of a motor (both on start-up and after start-up) and compare them to the motor's nameplate.

• True
• False

Regardless of the type of motor or application, the motor bearings require yearly lubrication.

• False
• True