Project & Service Engineer Interview Questions and Answers

Earthing voltage limit for induction motor is <=3VAC. Material shown is an electromotive fuse of 15mA.

• Earthing voltage limit for induction motor should be <=3VAC to ensure safety

• Electromotive fuse of 15mA is used to protect electrical circuits from overcurrent

• Proper grounding is essential for the safe operation of electrical equipment

Earthing, L-L and L-P voltage, earthing volts, and differences between RCCB, MCR, and MCCB explained.

• Earthing is the process of connecting electrical systems to the ground to prevent electric shock and protect equipment.

• L-L voltage refers to the voltage between two phases of a three-phase system, while L-P voltage refers to the voltage between a phase and neutral.

• Earthing volts are the voltage potential between the earth and a grounded object.

• RCCB (Residual Current Circuit Br...read more

Types of motors include AC motors, DC motors, synchronous motors, and induction motors.

• AC motors: Alternating current motors that are commonly used in household appliances and industrial applications.

• DC motors: Direct current motors that are often used in battery-operated devices and small electric vehicles.

• Synchronous motors: Motors that operate at a fixed speed and are used in applications where precise control is required.

• Induction motors: Motors that rely on electromagnet...read more