ASF Electrical and Mechanical Principles

Question 1

What is the primary function of a capacitor in an appliance motor circuit?

Accepted Answer

Store and release electrical energy

Answer

A capacitor in an appliance motor circuit stores and releases electrical energy to help start and run the motor efficiently.

Question 2

Which electrical component is responsible for converting AC voltage to DC voltage in appliances?

Accepted Answer

Rectifier

Answer

A rectifier is used to convert alternating current (AC) to direct current (DC) in electrical circuits.

Question 3

What is the role of a thermostat in an appliance?

Accepted Answer

Regulate temperature

Answer

A thermostat regulates temperature by turning a heating or cooling element on or off based on the set temperature.

Question 4

Which mechanical component in an appliance helps reduce friction between moving parts?

Accepted Answer

Bearing

Answer

Bearings are used in mechanical systems to reduce friction and allow smooth motion between moving parts.

Question 5

What type of motor is commonly used in household refrigerators?

Accepted Answer

Single-phase induction motor

Answer

A single-phase induction motor is widely used in household refrigerators due to its efficiency and reliability.

(ASF) Appliance Service Fundamentals Certification Practice Test