NOCTI ENGINEERING TECHNOLOGY PRACTICE EXAM QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) PLUS RATIONALES 2025

NOCTI ENGINEERING TECHNOLOGY
PRACTICE EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2025



1. What is the unit of electrical resistance?
A) Volt
B) Ampere
C) Ohm
D) Watt
Resistance is measured in Ohms, symbolized by Ω.



2. Which material is a good conductor of electricity?
A) Rubber
B) Glass
C) Copper

1|Page

,D) Plastic
Copper has low electrical resistance, making it an excellent conductor.



3. What is the main function of a resistor in a circuit?
A) Store energy
B) Amplify signals
C) Limit current flow
D) Generate electricity
Resistors reduce or control the flow of electrical current.



4. What type of energy transformation occurs in an electric motor?
A) Electrical to thermal
B) Mechanical to electrical
C) Electrical to mechanical
D) Thermal to mechanical
An electric motor converts electrical energy into mechanical energy.



5. What is the symbol for a capacitor in a circuit diagram?
A) Zigzag line
B) Circle with a cross
C) Two parallel lines


2|Page

, D) Triangle
A capacitor is represented by two parallel lines close to each other.



6. Which tool is used to measure voltage?
A) Ammeter
B) Voltmeter
C) Ohmmeter
D) Wattmeter
A voltmeter measures the voltage (potential difference) across two
points.



7. What does the acronym HVAC stand for?
A) High Voltage Alternating Current
B) Heat Ventilation And Cooling
C) Heating, Ventilation, and Air Conditioning
D) Heavy Voltage And Current
HVAC refers to systems for heating, ventilation, and air conditioning.



8. What is the relationship between current (I), voltage (V), and
resistance (R) according to Ohm’s law?
A) V = IR


3|Page