Vimta Labs Quality Trainee Interview Questions and Answers

Q1. What is etl and why is it used
Ans. 
ETL stands for Extract, Transform, Load. It is used to extract data from various sources, transform it into a consistent format, and load it into a data warehouse for analysis.
• Extract: Data is extracted from different sources such as databases, files, or APIs.

• Transform: The extracted data is cleaned, filtered, and transformed into a consistent format.

• Load: The transformed data is loaded into a data warehouse for analys...read more
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Q2. What is scd types
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SCD types refer to slowly changing dimensions in data warehousing, used to track historical changes in data over time.
• SCD Type 1: Overwrites old data with new data, losing historical information.

• SCD Type 2: Keeps multiple versions of the same record, creating new records for each change.

• SCD Type 3: Keeps some historical data in the same record, adding new columns for changes.

• SCD Type 4: Uses separate tables to store hi...read more
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Q1. About the family background
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Q2. Final year projects
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Q3. About the internship
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General aptitude question

Q1. What is the SmT Process
Ans. 
Surface Mount Technology (SMT) is a method used to mount electronic components onto printed circuit boards (PCBs) using surface-mount devices (SMDs).
• SMT involves placing components directly onto the surface of the PCB.

• Components are soldered onto the PCB using reflow soldering or wave soldering techniques.

• SMT allows for smaller and lighter electronic devices compared to through-hole technology.

• Examples of SMT component...read more
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Q2. Risk based thinking
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General questions regarding your course

Q1. Regarding your interest and knowledge about instruments
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Q2. Synthesis related questions
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Q1. Can you describe your project experience?
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Q2. What is the SQL query to determine if a given number is even or odd?
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Q3. What is the difference between the SQL commands DELETE, DROP, and TRUNCATE?
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Q4. Some more SQL query questions
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Q1. How many type of of gear?
Ans. 
There are several types of gears, including spur gears, helical gears, bevel gears, worm gears, rack and pinion gears, and planetary gears.
• Spur gears have straight teeth and are the most common type of gear.

• Helical gears have angled teeth for smoother operation.

• Bevel gears have cone-shaped teeth and are used to change the direction of rotation.

• Worm gears have a screw-like appearance and are used for high torque applica...read more
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Q2. How many types of engine ? Explain?
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There are two main types of engines: internal combustion engines and external combustion engines.
• Internal combustion engines: fuel is burned inside the engine to produce power (e.g. gasoline engines, diesel engines)

• External combustion engines: fuel is burned outside the engine to produce power (e.g. steam engines)
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Q1. Tell me about your self
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Q2. What is vernier, & micrometer of leastcount?
Ans. 
Vernier and micrometer are precision measuring tools used in engineering to measure small distances accurately.
• Vernier caliper is a measuring instrument with a main scale and a sliding vernier scale for more precise measurements.

• Micrometer screw gauge is used for even more accurate measurements, typically to the nearest thousandth of an inch or hundredth of a millimeter.

• The least count of a vernier caliper is usually 0...read more
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