OEN India Contractor Interview Questions, Process, and Tips

The colour code of a resistor is a system of coloured bands used to indicate the resistance value and tolerance of a resistor.

• The first two bands indicate the significant digits of the resistance value.

• The third band indicates the multiplier or number of zeros to add to the significant digits.

• The fourth band indicates the tolerance of the resistor.

• For example, a resistor with brown, black, red, and gold bands would hav...read more

Relays provide electrical isolation and allow for control of high voltage/current circuits with low voltage signals.

• Relays can switch high voltage/current circuits with low voltage signals

• Relays provide electrical isolation between the control circuit and the load circuit

• Relays can be used for various applications such as motor control, lighting control, and automation systems

• Relays can be easily replaced if they fail,...read more

Relay is an electrically operated switch that uses an electromagnet to mechanically operate a switch.

• Relays are used to control high voltage circuits with low voltage signals.

• They can be used for various applications such as controlling motors, lights, and solenoids.

• Relays have two circuits: the control circuit and the load circuit.

• When the control circuit is energized, it closes the load circuit.

• Relays can be normally

Relay is an electrical switch that opens and closes under the control of another electrical circuit.

• Relays are used to control high voltage circuits with low voltage signals.

• They are used in various applications such as in automobiles, industrial automation, and home appliances.

• Relays can be classified into electromechanical relays, solid-state relays, and reed relays.

• The operating function of a relay is to switch a ci...read more

Calibration is the process of adjusting or verifying the accuracy of an instrument or tool.

• Calibration ensures that an instrument or tool is accurate and reliable.

• It involves comparing the readings of the instrument to a known standard.

• Calibration is important in fields such as engineering, manufacturing, and science.

• Examples of instruments that require calibration include thermometers, scales, and pH meters.

Quality refers to the degree of excellence or superiority of a product or service.

• Quality is meeting or exceeding customer expectations

• It involves consistency, reliability, and durability

• Quality can be measured through various metrics such as defect rate, customer satisfaction, and on-time delivery

• Examples of quality products include Apple iPhones, Toyota cars, and Nike shoes