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Diamond Beverages Interview Questions and Answers

Updated 5 Feb 2024

Q1. What is the full form of Crane LT,CT,HT.?

Ans.

LT stands for Low Tension, CT stands for Current Transformer, HT stands for High Tension.

  • LT - Low Tension refers to electrical systems operating at voltages below 1,000 volts.

  • CT - Current Transformer is a type of instrument transformer used to measure alternating current.

  • HT - High Tension refers to electrical systems operating at voltages above 1,000 volts.

  • Examples: LT cables, CT meters, HT transformers.

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Q2. what is the chock, Ingnetor, capacitor,?

Ans.

Chock, Ignitor, and Capacitor are electrical components used in various applications.

  • A chock is an inductor used to limit the flow of current in an electrical circuit.

  • An ignitor is a device used to ignite fuel in combustion engines or lamps.

  • A capacitor is an electrical component used to store energy in an electric field.

  • All three components are commonly used in lighting systems, power supplies, and electronic devices.

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Q3. how to calculate KVARH and KVA?

Ans.

KVARH and KVA can be calculated using different formulas based on the type of circuit and load.

  • For single-phase circuits, KVA = voltage x current x power factor

  • For three-phase circuits, KVA = voltage x current x 1.732 x power factor

  • KVARH is calculated by integrating the reactive power over time

  • KVARH = (KVAR x hours of operation) / 1000

  • KVAR can be calculated using the Pythagorean theorem: KVAR = sqrt(KVA^2 - KW^2)

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Q4. What is the MIG/MAG welding machine?

Ans.

MIG/MAG welding machine is a type of welding equipment that uses a consumable wire electrode to create an electric arc for welding.

  • MIG stands for Metal Inert Gas while MAG stands for Metal Active Gas.

  • The machine uses a shielding gas to protect the weld from atmospheric contamination.

  • It is commonly used in automotive and manufacturing industries.

  • MIG/MAG welding is known for its speed and versatility.

  • The machine can be used to weld a variety of metals including steel, aluminum,...read more

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Q5. Star delta connection Diagrams?

Ans.

Star delta connection is a method of connecting three-phase electrical motors.

  • Used to reduce starting current and torque

  • Star connection for starting, delta connection for running

  • Commonly used in industrial applications

  • Requires a special motor starter

  • Reduces stress on motor windings

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Q6. how to calculate motor HP?

Ans.

Motor HP can be calculated using the formula: HP = (Torque x RPM) / 5252

  • Determine the torque and RPM of the motor

  • Use the formula: HP = (Torque x RPM) / 5252

  • For example, if a motor has a torque of 50 lb-ft and an RPM of 3,000, the HP would be (50 x 3000) / 5252 = 28.6 HP

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Q7. Dial starter connection diagrams?

Ans.

Dial starter connection diagrams are used to show the wiring connections for a dial starter.

  • The diagrams typically show the power supply connections, control circuit connections, and motor connections.

  • The power supply connections include the incoming power and the power going to the motor.

  • The control circuit connections include the start and stop buttons, overload protection, and any other control devices.

  • The motor connections include the three-phase power connections and the...read more

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Q8. How to work Air Compresor?

Ans.

An air compressor works by converting power into potential energy stored in compressed air.

  • Check the oil level and drain the water from the tank before use

  • Connect the air hose to the compressor and the tool you want to use

  • Turn on the compressor and wait for it to build pressure

  • Adjust the pressure regulator to the desired level

  • Turn off the compressor and disconnect the air hose when finished

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Q9. How to work power factor?

Ans.

Power factor is the ratio of real power to apparent power in an AC circuit.

  • Power factor can be improved by using capacitors or inductors in the circuit.

  • A high power factor means more efficient use of electricity.

  • Low power factor can result in penalties from utility companies.

  • Power factor correction is important in industrial and commercial settings.

  • Power factor is measured on a scale of 0 to 1, with 1 being ideal.

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