Group T5A

11 questions from the official pool, drawn by ID — exact wording, never retyped.

T5A01 Electrical current is measured in which of the following units?

A Volts B Watts C Ohms D Amperes

T5A02 Electrical power is measured in which of the following units?

A Volts B Watts C Watt-hours D Amperes

T5A03 What is the term for the flow of electrons in an electric circuit?

A Voltage B Amperes per second C Volts per second D Current

T5A04 What term describes the number of times per second that an alternating current makes a complete cycle?

A Pulse rate B Wave number C Frequency D Wavelength

T5A05 A difference in which of the following causes electron flow?

A Voltage B Ampere-hours C Capacitance D Inductance

T5A06 What is the unit of frequency?

A Hertz B Henry C Farad D Epicycles per second

T5A07 Why are metals generally good conductors of electricity?

A They have relatively high density B They have many free electrons C They have many free protons D They have relatively high Young's modulus values

T5A08 Which of the following is a good electrical insulator?

A Sea water B Glass C Stainless steel D Graphite

T5A09 Which of the following describes alternating current?

A Current that alternates between a positive direction and zero B Current that alternates between a negative direction and zero C Current that alternates between positive and negative directions D All these answers are correct

T5A10 Which term describes the rate at which electrical energy is used?

A Resistance B Current C Power D Voltage

T5A11 What type of current flow is opposed by resistance?

A Direct current B Alternating current C RF current D All these choices are correct