ITI Electrician 1st MCQ Question NCVT Online
Here are ITI Question Bank Electrician 1st Year MCQ Questions based on the NIMI (National Instructional Media Institute) syllabus. These questions are useful for trade theory exams and competitive NCVT exams. Each question is provided with the correct answer for easy practice.
📘 More Topics Covered:
- Basic Electrical Theory
- Ohm’s Law
- Electrical Safety
- Tools and Equipment
- Wiring Systems
- Electrical Machines
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Chapter 3: Electrical Machines (Transformers, Motors, Generators)
1- Which motor is used in ceiling fans?
a) DC motor
b) Universal motor
c) Induction motor
d) Stepper motor
Ans: c) Induction motor
2- Which part of a transformer is laminated to reduce eddy currents?
a) Core
b) Winding
c) Shaft
d) Brushes
Ans: a) Core
3- A generator converts:
a) Electrical energy into mechanical energy
b) Mechanical energy into electrical energy
c) Heat energy into electrical energy
d) Electrical energy into chemical energy
Ans: b) Mechanical energy into electrical energy
4- Which type of transformer is used for voltage step-up?
a) Isolation transformer
b) Step-up transformer
c) Step-down transformer
d) Auto-transformer
Ans: b) Step-up transformer
5- Which motor is used in electric vehicles?
a) Induction motor
b) DC series motor
c) Synchronous motor
d) Stepper motor
Ans: b) DC series motor
ITI Electrician 1st MCQ Question
🧠 ITI Electrician 1st Year MCQ Questions (NIMI Based)
| No. | Question | Options | Answer |
|---|---|---|---|
| 1 | What is the SI unit of electric current? | (A) Volt (B) Ohm (C) Ampere (D) Watt | (C) Ampere |
| 2 | Which instrument is used to measure voltage? | (A) Ammeter (B) Voltmeter (C) Ohmmeter (D) Wattmeter | (B) Voltmeter |
| 3 | Resistance depends on which of the following? | (A) Length (B) Area (C) Material (D) All of these | (D) All of these |
| 4 | Ohm’s law is expressed as: | (A) V = IR (B) I = VR (C) R = VI (D) P = VI | (A) V = IR |
| 5 | The electrical power is measured in: | (A) Ohm (B) Joule (C) Watt (D) Ampere | (C) Watt |
| 6 | Which wire is used as earth wire in wiring? | (A) Green (B) Red (C) Black (D) Yellow | (A) Green |
| 7 | The value of resistance in a closed circuit is: | (A) Zero (B) Infinite (C) High (D) Constant | (A) Zero |
| 8 | The function of a fuse in an electrical circuit is: | (A) To supply current (B) To prevent overload (C) To increase voltage (D) To decrease resistance | (B) To prevent overload |
| 9 | The part of the atom that carries a negative charge is: | (A) Proton (B) Neutron (C) Electron (D) Nucleus | (C) Electron |
| 10 | The colour code for 100 ohm resistor is: | (A) Brown Black Brown (B) Brown Black Red (C) Red Red Brown (D) Brown Brown Brown | (A) Brown Black Brown |
Chapter 4: Wiring & Earthing