Sona Comstar Diploma Trainee Engineer Interview Questions and Answers

It is a online test including various questions from general knowledge, English and reasoning

Q1. It is also a online test but with domain questions. Very hard question though
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Q1. Actually this round is about basic interaction between HR and students. Nothing to be stressed about
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Q1. What is fluid ?
Ans. 
Fluid is a substance that flows and takes the shape of its container.
• Fluid is a state of matter that has no fixed shape and yields easily to external pressure.

• Examples of fluids include water, oil, and air.

• Fluids can be classified as liquids or gases based on their properties.
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Q2. What is powe r?
Ans. 
Power is the rate at which work is done or energy is transferred.
• Power is measured in watts (W)

• It is calculated as the product of voltage and current (P = V x I)

• Power can also be calculated as the rate of energy transfer (P = E / t)

• Higher power means more work can be done in a shorter amount of time
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Q3. What is machine
Ans. 
A machine is a device that uses power to perform a task.
• Machines can be simple, like a lever or pulley, or complex, like a computer or car engine.

• They are designed to make work easier by transferring force from one point to another.

• Examples include washing machines, airplanes, and cranes.
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Q4. What is unit of power
Ans. 
The unit of power is the watt (W), which measures the rate at which work is done or energy is transferred.
• The unit of power is the watt (W)

• Power is the rate at which work is done or energy is transferred

• 1 watt is equal to 1 joule per second

• Common examples of power include light bulbs (measured in watts) and engines (measured in horsepower)
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Q5. What is the unitless quantity
Ans. 
A unitless quantity is a physical quantity that does not have any units associated with it.
• Unitless quantities are often used in mathematical calculations and comparisons.

• Examples include angles (measured in radians), pure numbers (such as ratios or percentages), and constants like pi.

• Unitless quantities are dimensionless and do not require any specific units for measurement.
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