Bharat Gears Interview Questions and Answers

Heat treatment is a process used to alter the physical and mechanical properties of vehicle gears by heating and cooling them in a controlled manner.

• Heat treatment improves the hardness, strength, and wear resistance of vehicle gears.

• Common heat treatment methods for vehicle gears include carburizing, quenching, and tempering.

• Carburizing involves adding carbon to the surface of the gear to increase its hardness.

• Quenchi...read more

Gears are mechanical devices used to transfer motion and power between rotating shafts.

• Types of gears include spur gears, helical gears, bevel gears, worm gears, and rack and pinion gears.

• Spur gears have straight teeth and are used for parallel shafts.

• Helical gears have angled teeth for smoother operation.

• Bevel gears are used to change the direction of rotation.

• Worm gears are used for high reduction ratios.

• Rack and pin...read more

Different types of gears are used in various mechanical systems to transmit motion and power.

• Spur gears are the most common type and are used for parallel shafts.

• Helical gears have angled teeth for smoother and quieter operation.

• Bevel gears are used to change the direction of rotation between intersecting shafts.

• Worm gears are used for high reduction ratios and are self-locking.

• Planetary gears are used in gearboxes for...read more

A forward reverse motor circuit diagram is used to control the direction of rotation of a motor.

• The circuit typically includes a power supply, motor, forward and reverse switches, and possibly a control relay.

• When the forward switch is activated, the motor rotates in one direction, and when the reverse switch is activated, the motor rotates in the opposite direction.

• The control relay may be used to prevent both the for...read more

Star delta circuit diagram is a method used to reduce starting current in induction motors.

• Star delta starter is used for starting induction motors

• In star connection, motor windings are connected in a star configuration for reduced voltage during starting

• After a certain time, the windings are switched to a delta configuration for full voltage operation

• This method helps in reducing starting current and mechanical stress...read more

Thermocouples are temperature sensors that consist of two different metals joined together, generating a voltage proportional to the temperature difference.

• Thermocouples are commonly used in industrial applications for temperature measurement.

• Types of thermocouples include Type K (chromel/alumel), Type J (iron/constantan), and Type T (copper/constantan).

• Each type has a different temperature range and accuracy level.

• The...read more

An oxygen probe is a device used to measure the concentration of oxygen in a gas or liquid.

• Oxygen probes typically consist of a sensing element, a reference electrode, and an electrolyte.

• The sensing element generates a voltage signal proportional to the oxygen concentration.

• The reference electrode provides a stable reference voltage for accurate measurements.

• The electrolyte allows oxygen ions to pass through, creating ...read more