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NTPC Apprenticeship Trainee Interview Questions, Process, and Tips

Updated 3 Oct 2024

Top NTPC Apprenticeship Trainee Interview Questions and Answers

NTPC Apprenticeship Trainee Interview Experiences

2 interviews found

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
Selected Selected

I applied via Company Website

Round 1 - Technical 

(4 Questions)

  • Q1. Power plant related
  • Q2. Theory of machine
  • Ans. 

    Theory of machine is a branch of engineering that deals with the study of machines and their mechanisms.

    • Theory of machine focuses on understanding the principles behind the operation of machines.

    • It involves studying the design, construction, and operation of machines.

    • Examples include studying the movement of gears in a gearbox or the operation of a piston in an engine.

  • Answered by AI
  • Q3. Function of PA fan
  • Ans. 

    PA fan stands for Primary Air fan, which is used in power plants to supply air for combustion in the boiler.

    • Supplies primary air for combustion in the boiler

    • Helps in maintaining proper air-fuel ratio for efficient combustion

    • Assists in controlling the temperature and pressure inside the boiler

    • Improves the overall efficiency of the boiler

    • Examples: FD fan in a power plant

  • Answered by AI
  • Q4. ID fan and pa fan difference
  • Ans. 

    ID fan is used to control the draft in the furnace while PA fan is used to supply combustion air to the furnace.

    • ID fan is located at the outlet of the furnace while PA fan is located at the inlet of the furnace.

    • ID fan helps in maintaining negative pressure inside the furnace while PA fan helps in supplying air for combustion.

    • ID fan is used to extract flue gases from the furnace while PA fan is used to supply primary an...

  • Answered by AI

I applied via Approached by Company and was interviewed in Sep 2021. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. How does Ash handling Dept. Works
  • Ans. 

    Ash handling department deals with the collection, transportation, and disposal of ash generated from power plants.

    • Ash is collected from the furnace and transported to the ash handling system

    • The ash is then processed and disposed of in an environmentally friendly manner

    • Different types of ash handling systems are used depending on the type of fuel used in the power plant

    • The ash handling department also ensures complianc...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Interview is based on basic details about company , technical roles and how administration work..

Apprenticeship Trainee Interview Questions Asked at Other Companies

asked in Tata Power
Q1. What is the circuit breaker.circuit breaker protect by short circ ... read more
asked in Tata Power
Q2. What is transformer.transformer work is electric' current up n do ... read more
asked in Tata Motors
Q3. What is the name of the current measuring instrument?
asked in Tata Power
Q4. What is motor .motor is a machine.motor is work on AC current
asked in OPTCL
Q5. What is transformer ?

Interview questions from similar companies

I applied via Campus Placement and was interviewed before Oct 2020. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. As I was a PASAA trainee, I was asked to create a folder on computer, and to do some calculations in excel etc. I was also asked about my hobby, my skills and interest in any subject.

Interview Preparation Tips

Interview preparation tips for other job seekers - I would like to suggest that always be honest when you are answering your interviewer. Secondly, be confident about whatever you are saying and moreover, be bold enough to conface if you don't know or can't recall the answer of the questions you are asked. Last but not the least make sure that you have completed your interview with an impressive eye contact and with a smiling face.

I applied via Apprenticeship India and was interviewed in Mar 2021. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. “What do you know about our company?” ...

Interview Preparation Tips

Interview preparation tips for other job seekers - The interviewer wanted to test both my knowledge and communication skills.
Interview experience
2
Poor
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Electrical related like-transformer , circuit breaker,
  • Q2. As you wish you can ask

Interview Preparation Tips

Interview preparation tips for other job seekers - Electrical
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Provisional basis 

(1 Question)

  • Q1. Grade of concrete
  • Ans. 

    Grade of concrete refers to the strength of the concrete mix design.

    • Grade of concrete is denoted by the ratio of cement, sand, and aggregates in the mix.

    • Common grades of concrete include M10, M15, M20, M25, etc.

    • Higher grade of concrete indicates higher strength and durability.

    • For example, M20 grade concrete has a mix ratio of 1:1.5:3 (cement:sand:aggregate).

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Important focus on technical skills and to search jobs on regular basis through online platform
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
-
Result
-
Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(12 Questions)

  • Q1. What is the circuit breaker.circuit breaker protect by short circuit
  • Ans. 

    A circuit breaker is a device that automatically interrupts the flow of electric current in a circuit to protect against short circuits.

    • Circuit breakers are designed to prevent damage to electrical equipment and wiring caused by excessive current.

    • They work by detecting abnormal current flow and quickly opening the circuit to stop the flow of electricity.

    • This helps to prevent overheating, fires, and other hazards that c...

  • Answered by AI
  • Q2. What is transformer.transformer work is electric' current up n down
  • Ans. 

    Transformers are electrical devices that transfer energy from one circuit to another through electromagnetic induction.

    • Transformers work by changing the voltage and current levels of an alternating current (AC) power supply.

    • They consist of two coils of wire, called the primary and secondary windings, wrapped around a magnetic core.

    • When an AC voltage is applied to the primary winding, it creates a magnetic field that in...

  • Answered by AI
  • Q3. What is motor .motor is a machine.motor is work on AC current
  • Ans. 

    A motor is a machine that converts electrical energy into mechanical energy.

    • Motors are used in various applications such as fans, pumps, and vehicles.

    • There are two types of motors: AC motors and DC motors.

    • AC motors are commonly used in household appliances while DC motors are used in electric vehicles.

    • Motors work by using the interaction between a magnetic field and an electric current to produce motion.

    • The speed of a ...

  • Answered by AI
  • Q4. What is AC n DC current
  • Ans. 

    AC and DC currents are two types of electrical currents with different characteristics.

    • AC (Alternating Current) is a type of electrical current that periodically changes direction.

    • DC (Direct Current) is a type of electrical current that flows in only one direction.

    • AC is commonly used in household electrical systems, while DC is used in batteries and electronic devices.

    • AC current is generated by power plants and transmi...

  • Answered by AI
  • Q5. What electric frequency in in India. Electric frequency in India 50hz
  • Ans. 

    The electric frequency in India is 50hz.

    • Electricity in India operates at a frequency of 50hz.

    • This is the same frequency used in most countries in Asia and Europe.

    • The frequency is important for the proper functioning of electrical appliances.

  • Answered by AI
  • Q6. What is relay. Relay is working mod on electric circuit board's do open n close
  • Ans. 

    A relay is an electrically operated switch that uses an electromagnet to mechanically open or close a circuit.

    • Relays are commonly used in electrical systems to control high voltage or high current circuits with low voltage signals.

    • They can be used for a variety of applications such as controlling lights, motors, and solenoids.

    • Relays come in different types such as electromagnetic, solid-state, and reed relays.

    • They are ...

  • Answered by AI
  • Q7. What is AC electric current.
  • Ans. 

    AC electric current is a type of electrical current that periodically reverses direction.

    • AC stands for Alternating Current

    • It is commonly used in household appliances and power grids

    • The voltage and frequency of AC current can vary depending on the application

    • Examples of AC current include the power supply in your home and the electricity used to power electric motors

  • Answered by AI
  • Q8. What is solar energy. Solar energy is working by son in work by solar panel jo charging deti DC bettry ko
  • Ans. 

    Solar energy is the energy obtained from the sun's radiation and converted into usable energy.

    • Solar energy is renewable and sustainable.

    • It is harnessed through the use of solar panels, which convert sunlight into electricity.

    • Solar energy can be used for a variety of purposes, including powering homes and businesses, heating water, and even powering cars.

    • It is a clean source of energy, producing no greenhouse gas emissi...

  • Answered by AI
  • Q9. Electric current lagene par kya karna chahiye. Electric current lagene par patient ko frist ted dena chahiye, patient ko ulta lita kar uski peeth dabana chahiye, patient ko cpr dena chahiye
  • Q10. What is control system
  • Ans. 

    A control system is a system that manages, commands, directs, or regulates the behavior of other devices or systems.

    • Control systems are used in various fields such as engineering, manufacturing, and automation.

    • They can be either open-loop or closed-loop systems.

    • Open-loop systems do not have feedback, while closed-loop systems use feedback to adjust their output.

    • Examples of control systems include thermostats, cruise co...

  • Answered by AI
  • Q11. How to measurement of current
  • Ans. 

    Current can be measured using an ammeter.

    • An ammeter is connected in series with the circuit to measure current.

    • The ammeter should have a suitable range for the expected current.

    • The circuit should be turned off before connecting the ammeter.

    • The ammeter should be connected in the correct orientation.

    • The reading on the ammeter should be recorded and interpreted correctly.

  • Answered by AI
  • Q12. How to measurement of voltage
  • Ans. 

    Voltage can be measured using a voltmeter or a multimeter.

    • Connect the voltmeter/multimeter to the circuit or component being measured

    • Set the range of the voltmeter/multimeter to the appropriate voltage level

    • Read the voltage measurement displayed on the voltmeter/multimeter

    • Ensure proper grounding and safety precautions are taken

    • Examples of voltage measurements include measuring the voltage of a battery or power supply

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Meri strength hi work hai.
Mai hard working work karunga humesha

Interview Questionnaire 

1 Question

  • Q1. Mechanical designing

Interview Preparation Tips

Interview preparation tips for other job seekers - Computer work

I applied via Campus Placement and was interviewed in Dec 2021. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(3 Questions)

  • Q1. Work types knowledge
  • Q2. Self and company workers
  • Q3. Experience and work and job types

Interview Preparation Tips

Topics to prepare for BHEL Apprenticeship Trainee interview:
  • Personal Assistance
Interview preparation tips for other job seekers - Best and growing up company benefits and

I applied via Other and was interviewed before Apr 2020. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. Latest Updates on Service Tax/ NPV
  • Ans. 

    Service tax has been replaced by GST since July 2017. NPV is still relevant for investment decisions.

    • Service tax has been subsumed under GST since July 2017

    • NPV stands for Net Present Value and is used to evaluate investment decisions

    • NPV takes into account the time value of money and calculates the present value of future cash flows

    • NPV is still relevant and widely used in finance and investment analysis

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Be Updated with Latest Amendments

NTPC Interview FAQs

How many rounds are there in NTPC Apprenticeship Trainee interview?
NTPC interview process usually has 1 rounds. The most common rounds in the NTPC interview process are Technical.
What are the top questions asked in NTPC Apprenticeship Trainee interview?

Some of the top questions asked at the NTPC Apprenticeship Trainee interview -

  1. How does Ash handling Dept. Wo...read more
  2. ID fan and pa fan differe...read more
  3. Theory of mach...read more

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NTPC Apprenticeship Trainee Interview Process

based on 1 interview

Interview experience

5
  
Excellent
View more
NTPC Apprenticeship Trainee Salary
based on 16 salaries
₹0.8 L/yr - ₹3.5 L/yr
21% less than the average Apprenticeship Trainee Salary in India
View more details

NTPC Apprenticeship Trainee Reviews and Ratings

based on 14 reviews

4.4/5

Rating in categories

4.6

Skill development

4.4

Work-life balance

3.5

Salary

3.1

Job security

4.5

Company culture

3.7

Promotions

4.0

Work satisfaction

Explore 14 Reviews and Ratings
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