Quiztions!

What is the primary function of an electrical contactor in a motor starter?

• To measure the impedance of the rotor

• To switch ON/OFF the power supply to the motor

• To protect the motor from overload conditions

• To reverse the direction of the motor

Why is an overload protection circuit necessary in a motor starter?

• To increase the rotor speed

• To enhance the efficiency of the motor

• To protect the motor from damage due to high current

• To reduce the slip in the induction motor

How does a motor starter protect an induction motor at startup?

• By increasing the initial current

• By decreasing the slip

• By limiting the initial current

• By reversing the motor direction

What factor influences the rotor impedance in an induction motor?

• Voltage

• Current

• Slip

• Frequency

Which of the following is NOT a function of a motor starter?

• Safely starting and stopping a motor

• Reversing the direction of the motor

• Measuring the voltage supply

• Protecting the motor from low voltage and overcurrent

What is the first step in the electrical troubleshooting process?

• Identifying possible causes

• Testing and repairing the circuit

• Defining the problem area

• Observing the circuit

Which of the following is NOT a sign of a defective component?

• Signs of burning in light bulbs

• Detaching adhesive bolts and screws

• Signs of overheating in the circuit

• Completely functional wiring

Why is it important to know the history of a circuit during troubleshooting?

• It helps determine the age of the circuit

• It provides information on previous faults and repairs

• It allows for better visual observation

• It speeds up the repair process

How can a schematic diagram assist in troubleshooting?

• It reduces the need for observation

• It helps isolate the faulty component

• It identifies the history of the circuit

• It automatically repairs the circuit

What should be done after identifying possible causes of a fault?

• Repair the circuit immediately

• Compare the findings from visual observations

• Recheck the entire circuit

• Replace all components