Lava International SMT Engineer Interview Questions and Answers

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
Ans. 
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. Family background
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Q2. In about me introduction
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Q1. What is the process of Refrigerant
Ans. 
Refrigerant is a substance used in a heat pump or refrigeration cycle to transfer heat between the indoors and outdoors.
• Refrigerant absorbs heat from the indoor air and releases it outside

• It changes from a liquid to a gas and back again in the refrigeration cycle

• Common refrigerants include R-410A, R-134a, and R-22

• Refrigerants should be handled carefully due to their potential environmental impact
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Q2. What is plc and how to work
Ans. 
PLC stands for Programmable Logic Controller, used in industrial automation to control machinery and processes.
• PLC is a digital computer used to automate electromechanical processes.

• It uses a programmable memory to store instructions and execute specific functions.

• PLCs are commonly used in manufacturing plants, assembly lines, and other industrial settings.

• They can be programmed using ladder logic, function block diagr...read more
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Q3. What is MTTR and MTBF
Ans. 
MTTR stands for Mean Time To Repair and MTBF stands for Mean Time Between Failures.
• MTTR is the average time taken to repair a failed component or system.

• MTBF is the average time between failures of a component or system.

• MTTR is usually measured in hours or days, while MTBF is also measured in hours or days.

• MTTR is an important metric for assessing maintenance efficiency, while MTBF is used to predict the reliability of...read more
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Q4. Defferent wetbeen MTTR and MTBF
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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

Normal with electrical,reasoning

Q1. Introduction,resume,experience,interest
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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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GD was on a common topic, whichever is trending. Candidates were divided into groups and each group was given a separate topic to discuss on.

Q1. Basic info about your specialisation during your graduation
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Q2. Was asked question of Trigonometry, not sure were it would help !
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90 mins and mostly aptitute based on analytics , quntitative etcc...

Coding questions based on python

Q1. Deep learning questions
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Q2. Project questions from my resume
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Q1. Practical experience and customer service
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