Answer ALL questions. Look for any feedback given if you get an answer incorrect. Keep choosing an answer until you get it correct. CORRECT or INCORRECT answers are indicated at the TOP of the page. A score is given at the TOP of the page when the exercise has been completed.
what arrangement is also known as a 'permanent-split capacitor' motor?
split phase
capacitor aided
capacitor start
series wound
what motor arrangement is shown here?
split phase
capacitor aided
capacitor start
series wound
which one of the following statements is not true of an AC capacitor-aided motor?
it has good starting torque
it has good running torque
it has a large drop in speed under load
it is used in air conditioning units
what motor arrangement is shown here?
split phase
capacitor aided
capacitor start
series wound
how is the direction of rotation reversed in the motor circuit shown here?
join U1 and U2 connections together
swap Z1 and Z2 connections
reverse the phase and N connections
bypass the capacitor
which one of the following statements is not true of a capacitor-aided AC motor?
it uses a standard squirrel cage rotor design
windings are contained within the stator
the auxilliary winding has a lower impedance than the run winding
the auxilliary winding is permanently connected in the circuit
what is indicated by the arrow on the motor shown here?
electrical connections terminal box
capacitor housing
start and stop controls
forward and reverse controls
what is the function of the device indicated here?
it switches off the motor during an overload
it switches off the aux. winding when max. speed is reached
it switches the aux. winding on and off as required by the motor
it switches off the run winding during a fault
what can a centrifugal switch be replaced with on a capacitor start AC motor?
current relay
solid state switch
a capacitor
slip rings
what type of motor is shown here?
capacitor run motor
capacitor start motor
split phase motor
synchronous motor
a single phase capacitor start motor is making a 'humming' noise during 'start-up' and fails to rotate. What is the likely cause?
centrifugal switch permanently open
centrifugal switch permanently closed
burnt out run winding
loss of mains supply
what voltage rating are the capacitors used in a single phase capacitor-aided motor?
230v
250v
400v
500v
what voltage rating are the capacitors used in a single phase capacitor-start centrifugal switch-type motor?
230v
100v
400v
500v
which one of the following statements is untrue concerning the application of a capacitor-start motor?