B. M. Institute Of Engineering & Technology Lab Technician Interview Questions and Answers

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

• DC motors operate on the principle of Lorentz force.

• They have a commutator and brushes that help in the conversion of electrical energy to mechanical energy.

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

• They come in different types such as brushed DC motors, brushl...read more

Staircase wiring diagram can be made on paper using standard symbols and conventions.

• Use standard symbols for switches, lights, and wires

• Draw the diagram in a logical sequence

• Label the components and wires clearly

• Follow the conventions for staircase wiring

• Ensure the diagram is easy to read and understand

Calculation of resistance in T network

• In a T network, the resistors are arranged in a T shape

• The total resistance of a T network can be calculated using the formula: R_total = R1 + (R2*R3)/(R2+R3)

• R1 is the resistor connected to the voltage source, while R2 and R3 are the other two resistors

• The T network is commonly used in audio circuits and impedance matching