Lava International PQC Engineer Interview Questions and Answers

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Any one technical questions from Electrical branch.

Q1. What is current
Ans. 
Current is the flow of electric charge in a circuit.
• Current is measured in Amperes (A)

• It is the rate of flow of electric charge through a conductor

• There are two types of current - AC (alternating current) and DC (direct current)

• Example: A light bulb connected to a battery has current flowing through it
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Q2. What is voltage
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Voltage is the difference in electric potential between two points in a circuit, measured in volts.
• Voltage is the driving force that pushes electric current through a circuit

• It is measured in volts (V)

• Voltage can be positive or negative, depending on the direction of current flow

• Higher voltage means more energy available to push current through a circuit

• Examples: A battery provides voltage to power a flashlight, a wall...read more
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Q3. What is Resistance
Ans. 
Resistance is the opposition to the flow of electric current in a circuit.
• Resistance is measured in ohms (Ω).

• It is caused by the collisions of electrons with atoms in a material.

• Higher resistance means lower current flow.

• Examples of materials with high resistance include rubber and glass.

• Examples of materials with low resistance include copper and silver.
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Q1. What is sub cooling and super heat
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Q2. The chiller condenser outlet line to super heat work and evaporator to compressor before sub cooling work
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Q1. Refrigeration basic cycle
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Q2. 1.Compressor to condenser 2.Condenser to expansion valve 3.Expansion valve to evaporator 4.Evaporator to compressor
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Q1. The split unit E6 error how to resolve
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Q2. Check the Indore to outdoor communication cable continuity continuous not coming means cable is failure and cable continuity is coming na board failure
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Manager and technical officer

One split AC installation work explain

Q1. What makes ac to dc
Ans. 
AC is converted to DC using a rectifier circuit.
• AC to DC conversion is done using a rectifier circuit, which converts alternating current (AC) to direct current (DC).

• Rectifier circuits can be half-wave or full-wave, depending on the type of rectification needed.

• Examples of rectifier circuits include diode rectifiers, bridge rectifiers, and voltage multiplier circuits.
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Q2. What's materials used for earthing
Ans. 
Materials commonly used for earthing include copper, galvanized steel, and conductive concrete.
• Copper rods

• Galvanized steel rods

• Conductive concrete

• Earthing strips

• Earthing plates
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Q3. Full form of MCBA
Ans. 
MCBA stands for Master of Construction Business Administration.
• MCBA is a postgraduate degree program that focuses on the business aspects of the construction industry.

• It covers topics such as project management, finance, marketing, and strategic planning.

• Example: John completed his MCBA to advance his career in construction management.
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Q4. What is the standard earthing voltage
Ans. 
The standard earthing voltage is typically 0 volts.
• Standard earthing voltage is usually 0 volts to ensure safety in electrical systems

• Earthing voltage can vary depending on the specific requirements of the system

• Proper earthing helps to prevent electrical shocks and equipment damage
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Q1. How long you can join
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Q2. As early as possible
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Q1. Design calculations for Sheetmetal
Ans. 
Design calculations for Sheetmetal involve determining material thickness, bend radius, and flat pattern development.
• Calculate material thickness based on required strength and application

• Determine bend radius to prevent cracking or deformation during bending process

• Develop flat pattern layout to ensure accurate cutting and bending of sheetmetal

• Consider factors like material type, sheet size, and manufacturing processe
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Q2. Welding and gdnt
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Q1. Transfermar kya hai
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Q2. Types of motar 2phage
Ans. 
Types of mortar in 2 phase include dry pack mortar and wet pack mortar.
• Dry pack mortar is a stiff mixture of sand, cement, and water used for filling gaps and cracks.

• Wet pack mortar is a fluid mixture of sand, cement, and water used for laying bricks and stones.

• Other types of mortar include lime mortar, cement mortar, and epoxy mortar.
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Language English Hindi

Q1. Power generation
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Q2. Circuit kinte prakar ki hoti hai
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Technical or aptitude

Q1. Diploma Mechanical subject related
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Q2. Any questions related to my branch
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Q3. Any multiple questions related to my diploma in mechanical engineering branch
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Q4. HR Related questions
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Q5. Personal family background related questions
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