LATEST NOCTI JOB READY ELECTRONICS CERTIFICATION EXAM OFFERED BY NOCTI | Q&A WITH RATIONALES

LATEST NOCTI JOB READY
ELECTRONICS CERTIFICATION
EXAM OFFERED BY NOCTI | Q&A
WITH RATIONALES

1. What is the unit of measurement for electrical
resistance?
A) Volt
B) Ampere
C) Ohm
D) Watt
Correct answer: C
Rationale: The ohm (Ω) is the SI unit of electrical
resistance, named after Georg Simon Ohm.


2. What is the unit of electrical current?
A) Volt
B) Ampere
C) Ohm
D) Watt
Correct answer: B

,Rationale: The ampere (A) is the SI base unit of
electric current.


3. What is the unit of electrical power?
A) Volt
B) Ampere
C) Ohm
D) Watt
Correct answer: D
Rationale: The watt (W) is the SI unit of power, equal
to one joule per second.


4. What is the unit of electrical voltage?
A) Volt
B) Ampere
C) Ohm
D) Watt
Correct answer: A
Rationale: The volt (V) is the SI unit of electric
potential difference or electromotive force.

,5. Which of the following is NOT a passive electronic
component?
A) Resistor
B) Capacitor
C) Inductor
D) Transistor
Correct answer: D
Rationale: A transistor is an active component that
can control current, while resistors, capacitors, and
inductors are passive components.


6. What is the color code for a resistor with bands:
Red, Red, Brown, Gold?
A) 220 Ω ±5%
B) 22 Ω ±5%
C) 2.2 kΩ ±5%
D) 220 kΩ ±5%
Correct answer: A
Rationale: Red=2, Red=2, Brown=×10, Gold=±5%, so
22 × 10 = 220 Ω ±5%.

, 7. A resistor has a resistance of 1 kΩ and a current of
10 mA flowing through it. What is the voltage across
it?
A) 10 V
B) 100 V
C) 1 V
D) 0.1 V
Correct answer: A
Rationale: Using Ohm's law: V = I × R = 0.01 A × 1000
Ω = 10 V.


8. A circuit has a voltage of 12 V and a resistance of 3
Ω. What is the current?
A) 4 A
B) 3 A
C) 36 A
D) 0.25 A
Correct answer: A
Rationale: I = V/R = 12 V / 3 Ω = 4 A.


9. A circuit has a voltage of 24 V and a current of 2 A.
What is the power?