10+ ITI Electrician Interview Questions and Answers for Freshers

MCB stands for Miniature Circuit Breaker. It is a type of electrical switch that automatically shuts off the electrical circuit during an overload or short circuit.

• Types of MCB include Single Pole MCB, Double Pole MCB, Triple Pole MCB, and Four Pole MCB.

• Other types of electrical instruments include Voltmeter, Ammeter, Multimeter, Oscilloscope, and Earth Tester.

• Types of electrical panels commonly used are Distribution Panels, Control Panels, and Motor Control Centers.

AC and DC are two types of electrical current. There are several types of switches used in electrical circuits.

• AC stands for Alternating Current and DC stands for Direct Current.

• AC current changes direction periodically while DC current flows in one direction only.

• Types of switches include toggle switches, rocker switches, push-button switches, and rotary switches.

• Switches can be classified based on their function, such as on/off switches, selector switches, and momentary swi...read more

The color code of a 410 k ohm resistance is yellow, brown, black, and red.

• 410 k ohm is represented by yellow, brown, black, and red bands on a resistor

• Yellow represents 4, Brown represents 1, Black represents 0, and Red represents 2 zeros (x100)

• So the color code for 410 k ohm resistance is yellow, brown, black, red

AC motor power refers to the amount of electrical energy that can be converted into mechanical energy by an AC motor.

• AC motor power is measured in watts (W)

• It is calculated by multiplying the voltage, current, and power factor of the motor

• The power factor is a measure of how efficiently the motor converts electrical energy into mechanical energy

• AC motor power can be increased by increasing the voltage or current supplied to the motor

• Examples of AC motors include induction mot...read more

Force Motors left due to strategic reasons

• Force Motors decided to exit the electric vehicle segment to focus on their core business of manufacturing commercial vehicles

• The company faced tough competition in the EV market and decided to re-strategize their business model

• Force Motors also faced challenges in terms of high battery costs and lack of charging infrastructure

• The company plans to re-enter the EV market with a new strategy in the future

AC current is a type of electrical current that periodically reverses direction.

• AC stands for Alternating Current

• It is commonly used in household appliances and power distribution systems

• The voltage and frequency of AC current can vary depending on the application

• Examples of AC current include the power from a wall outlet and the electricity generated by a wind turbine

DC current is the flow of electric charge in a single direction.

• DC stands for Direct Current.

• It is produced by sources such as batteries, fuel cells, and solar cells.

• DC current is used in electronic devices such as computers, televisions, and radios.

• It is also used in electric vehicles and trains.

• DC current is measured in amperes (A).

RCCB stands for Residual Current Circuit Breaker. It is a safety device that quickly disconnects the power supply when it detects a leakage current.

• RCCB is also known as a residual current device (RCD).

• It is used to protect against electric shock and fire caused by faulty wiring or appliances.

• RCCB works by comparing the current flowing in the live and neutral wires. If there is a difference, it means that some current is leaking to the ground and the RCCB trips.

• RCCB is common...read more

A DC motor is an electrical machine that converts direct current electrical energy into mechanical energy.

• DC motors are commonly used in various applications such as electric vehicles, robotics, and industrial machinery.

• They consist of a stator, rotor, commutator, and brushes.

• The direction of rotation can be changed by reversing the polarity of the input voltage.

• DC motors are classified into two types: brushed and brushless.

• Brushed DC motors are cheaper and simpler, but brush...read more

MCB stands for Miniature Circuit Breaker. It is an electrical switch that automatically shuts off the electrical circuit during an overload or short circuit.

• MCB is a type of circuit breaker that is commonly used in residential and commercial buildings.

• It is designed to protect electrical circuits from damage caused by overloading or short circuits.

• MCBs are available in different current ratings and can be easily reset after tripping.

• They are more reliable and faster in operat...read more

A DOL starter wiring diagram shows the connections for a Direct-On-Line starter used to start and stop motors.

• The main components of a DOL starter wiring diagram include a contactor, overload relay, start button, stop button, and power supply connections.

• The power supply is connected to the main terminals of the contactor, which then connects to the motor terminals.

• The start button is connected in parallel with the contactor coil to initiate motor start-up.

• The stop button is ...read more