AT&T TKT II (TECHNICAL KNOWLEDGE TEST II)
PRACTICE EXAM BANK LATEST 2026/2027
UPDATE – 350 MULTIPLE CHOICE QUESTIONS
WITH ANSWERS & RATIONALES
SECTION 1: BASIC ELECTRICITY (Questions 1–140)
Question 1
The rate of electron flow in a circuit is measured in:
A) Volts
B) Ohms
C) Amperes
D) Coulombs
Correct Answer: C
Rationale: Amperes (amps) are the unit for measuring electrical current,
which is the rate of electron flow. Volts measure electrical potential, ohms
measure resistance, and coulombs measure electrical charge.
Question 2
Volt is a measure of:
,A) Electrical current
B) Electrical resistance
C) Electromotive Force (Electrical Potential)
D) Electrical power
Correct Answer: C
Rationale: A volt measures electromotive force or electrical potential—the
force that pushes electrons through a circuit.
Question 3
What is the equation for power (P)?
A) P = V × R
B) P = I × R
C) P = V × I
D) P = V / I
Correct Answer: C
Rationale: Power (P) equals voltage (V) multiplied by current (I). P = V × I
(Power = Volts × Amps).
Question 4
What is Ohm's Law equation?
,A) V = I / R
B) V = I × R
C) I = V × R
D) R = V × I
Correct Answer: B
Rationale: Ohm's Law states that voltage equals current multiplied by
resistance: V = I × R.
Question 5
What is the base unit of electrical charge?
A) Ampere
B) Volt
C) Coulomb
D) Ohm
Correct Answer: C
Rationale: The coulomb is the SI unit of electrical charge, equal to the quantity
of electricity conveyed in one second by a current of one ampere.
Question 6
The flow of electric charge that regularly reverses in polarity is called:
, A) Direct Current (DC)
B) Alternating Current (AC)
C) Static electricity
D) Electron flow
Correct Answer: B
Rationale: Alternating current (AC) reverses direction periodically. Direct
current flows in only one direction.
Question 7
_____ is the onedirectional flow of an electric charge.
A) Alternating Current
B) Direct Current
C) Static discharge
D) Induction
Correct Answer: B
Rationale: Direct current (DC) flows in one direction only, unlike AC which
alternates polarity.
Question 8
Convert 6500 ohms to kilohms (kΩ).
PRACTICE EXAM BANK LATEST 2026/2027
UPDATE – 350 MULTIPLE CHOICE QUESTIONS
WITH ANSWERS & RATIONALES
SECTION 1: BASIC ELECTRICITY (Questions 1–140)
Question 1
The rate of electron flow in a circuit is measured in:
A) Volts
B) Ohms
C) Amperes
D) Coulombs
Correct Answer: C
Rationale: Amperes (amps) are the unit for measuring electrical current,
which is the rate of electron flow. Volts measure electrical potential, ohms
measure resistance, and coulombs measure electrical charge.
Question 2
Volt is a measure of:
,A) Electrical current
B) Electrical resistance
C) Electromotive Force (Electrical Potential)
D) Electrical power
Correct Answer: C
Rationale: A volt measures electromotive force or electrical potential—the
force that pushes electrons through a circuit.
Question 3
What is the equation for power (P)?
A) P = V × R
B) P = I × R
C) P = V × I
D) P = V / I
Correct Answer: C
Rationale: Power (P) equals voltage (V) multiplied by current (I). P = V × I
(Power = Volts × Amps).
Question 4
What is Ohm's Law equation?
,A) V = I / R
B) V = I × R
C) I = V × R
D) R = V × I
Correct Answer: B
Rationale: Ohm's Law states that voltage equals current multiplied by
resistance: V = I × R.
Question 5
What is the base unit of electrical charge?
A) Ampere
B) Volt
C) Coulomb
D) Ohm
Correct Answer: C
Rationale: The coulomb is the SI unit of electrical charge, equal to the quantity
of electricity conveyed in one second by a current of one ampere.
Question 6
The flow of electric charge that regularly reverses in polarity is called:
, A) Direct Current (DC)
B) Alternating Current (AC)
C) Static electricity
D) Electron flow
Correct Answer: B
Rationale: Alternating current (AC) reverses direction periodically. Direct
current flows in only one direction.
Question 7
_____ is the onedirectional flow of an electric charge.
A) Alternating Current
B) Direct Current
C) Static discharge
D) Induction
Correct Answer: B
Rationale: Direct current (DC) flows in one direction only, unlike AC which
alternates polarity.
Question 8
Convert 6500 ohms to kilohms (kΩ).
