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Cairn Oil Summer Intern Interview Questions, Process, and Tips

Updated 8 Aug 2024

Cairn Oil Summer Intern Interview Experiences

1 interview found

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed in Feb 2024. There were 2 interview rounds.

Round 1 - Group Discussion 

Topic:- Deadlines should be strictly followed during a Project in an industry or not

Round 2 - Technical 

(4 Questions)

  • Q1. Why Transmission Voltages are always in Multiples of 11kV
  • Ans. 

    Transmission voltages are in multiples of 11kV due to historical reasons and practical considerations.

    • Historically, the standardization of transmission voltages around 11kV was influenced by early power system designs and equipment capabilities.

    • Practically, using multiples of 11kV allows for easier voltage transformation and compatibility between different parts of the power grid.

    • Higher voltages like 132kV, 220kV, and ...

  • Answered by AI
  • Q2. Which is the best type of Circuit Breaker for higher voltages and why?
  • Ans. 

    The best type of Circuit Breaker for higher voltages is a Gas-insulated Circuit Breaker (GCB) due to its superior insulation properties and ability to handle high voltages.

    • Gas-insulated Circuit Breakers (GCBs) are filled with sulfur hexafluoride gas, which has excellent insulating properties.

    • GCBs are compact in size and can handle high voltages up to 1100 kV, making them ideal for high voltage applications.

    • They are hig...

  • Answered by AI
  • Q3. Explain what you mean by switchgear and protection
  • Ans. 

    Switchgear refers to electrical equipment used to control, protect, isolate, and switch electrical circuits. Protection involves measures to prevent damage to electrical equipment and ensure safety.

    • Switchgear includes devices like circuit breakers, fuses, and disconnect switches.

    • Protection involves measures like overcurrent protection, earth fault protection, and differential protection.

    • Switchgear and protection are es...

  • Answered by AI
  • Q4. Explain the generation, transmission and distribution of Electrical System
  • Ans. 

    Generation, transmission, and distribution of electrical system involves producing electricity, sending it through power lines, and delivering it to consumers.

    • Generation: Electricity is produced at power plants using various sources such as coal, natural gas, nuclear, hydro, wind, or solar energy.

    • Transmission: High voltage electricity is sent over long distances through transmission lines to substations.

    • Distribution: L...

  • Answered by AI

Interview questions from similar companies

I was interviewed in Jan 2017.

Interview Preparation Tips

Round: Resume Shortlist
Experience: I applied through their online portal. After some days, I received a call regarding the shortlist of the resume and was told that I might get a call from the HR department.

Round: HR Interview
Experience: I was told about the working environment and the risks related to the work. Also, I was asked if I could take the work pressure. I was told there won't be no stipend at all and all the arrangement will have to be bear by me.

Skills: Inter Person Communication Skills
College Name: IIT Roorkee
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed before Jul 2022. There were 3 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 Resume tips
Round 2 - One-on-one 

(3 Questions)

  • Q1. General discussion on cement grinding unit
  • Q2. Discussion on grinding efficiency and factors effecting performance of grinding
  • Ans. 

    Grinding efficiency is influenced by factors like feed rate, material properties, grinding wheel speed, and coolant usage.

    • Feed rate: Higher feed rates can improve efficiency but may lead to increased wear on the grinding wheel.

    • Material properties: Harder materials require slower grinding speeds to achieve optimal efficiency.

    • Grinding wheel speed: Higher speeds can increase efficiency but may also generate more heat, aff...

  • Answered by AI
  • Q3. The effect of grinding media on ball mill performance
  • Ans. 

    Grinding media can significantly impact ball mill performance by affecting grinding efficiency and wear rate.

    • The type of grinding media used can affect the grinding efficiency of the ball mill.

    • Different materials of grinding media have varying wear rates, impacting maintenance costs.

    • The size and shape of the grinding media can also influence the grinding process.

    • For example, using ceramic balls instead of steel balls c...

  • Answered by AI
Round 3 - One-on-one 

(2 Questions)

  • Q1. On slag reactivity and it's effect on cement performance
  • Ans. 

    Slag reactivity can impact cement performance by influencing hydration reactions and strength development.

    • Slag reactivity refers to the ability of slag to react with water and form cementitious compounds.

    • Higher slag reactivity can lead to faster hydration reactions and improved early strength development.

    • However, excessive slag reactivity can also result in rapid setting and reduced workability of the concrete.

    • Proper s...

  • Answered by AI
  • Q2. How the ground slag enhance concrete performance was discussed. The effects of ground slag in concrete especially durability of concrete was discussed
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(2 Questions)

  • Q1. What is medicine
  • Q2. What is tablet???
  • Ans. 

    A tablet is a portable computer device with a touchscreen display, typically used for browsing the internet, watching videos, playing games, and more.

    • Portable computer device with a touchscreen display

    • Commonly used for browsing the internet, watching videos, playing games, etc.

    • Examples: Apple iPad, Samsung Galaxy Tab, Amazon Fire Tablet

  • Answered by AI
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Referral and was interviewed in Apr 2023. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. Why this company? what do you know about telecommunication?
  • Q2. What are the microcontrollers you are familiar with?
  • Ans. 

    I am familiar with microcontrollers such as Arduino, Raspberry Pi, and ESP8266.

    • Arduino

    • Raspberry Pi

    • ESP8266

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Study hard and keep your core knowledge strong
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed before Jun 2023. There were 2 interview rounds.

Round 1 - CGPA based shortlisting 

(1 Question)

  • Q1. It was an on-campus opportunity
Round 2 - Technical 

(3 Questions)

  • Q1. Types of reactors
  • Ans. 

    Types of reactors include batch, continuous stirred-tank, plug flow, and fluidized bed reactors.

    • Batch reactors operate in a closed system with a fixed amount of reactants.

    • Continuous stirred-tank reactors have continuous flow of reactants and products.

    • Plug flow reactors have a continuous flow with no mixing along the length of the reactor.

    • Fluidized bed reactors use a fluid to suspend solid particles, allowing for better

  • Answered by AI
  • Q2. Types of valves
  • Ans. 

    Valves are devices used to control the flow of fluids or gases in a system by opening, closing, or partially obstructing passageways.

    • Types of valves include ball valves, gate valves, globe valves, butterfly valves, check valves, and pressure relief valves.

    • Ball valves have a spherical closure unit that allows for quick on/off control of flow.

    • Gate valves have a gate-like disc that moves up and down to control flow.

    • Globe ...

  • Answered by AI
  • Q3. Question related to resume

Interview Preparation Tips

Interview preparation tips for other job seekers - Make sure you are able to justify your resume and don't mention details of which you have less knowledge
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed before Oct 2022. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Properly align and format text in your resume. A recruiter will have to spend more time reading poorly aligned text, leading to high chances of rejection.
View all Resume tips
Round 2 - Technical 

(2 Questions)

  • Q1. First they shortlisted on the cgpa basis. Then technical + hr round was there. In which they ask for favourite subjects and all the question was from the same subject
  • Q2. What will happen if we add petrol in diesel engine
  • Ans. 

    Adding petrol in a diesel engine can cause damage to the engine and reduce its efficiency.

    • Petrol has lower lubricating properties than diesel, leading to increased wear and tear on engine components.

    • Petrol can cause damage to the fuel injection system and fuel pump.

    • The engine may misfire or stall due to the different combustion properties of petrol and diesel.

    • Running a diesel engine on petrol can result in overheating ...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare two subjects
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(2 Questions)

  • Q1. Nothing asked directly filled the summer internship form
  • Q2. U require more than 8 cg for this internship and it is 1 month period

Interview Preparation Tips

Interview preparation tips for other job seekers - None
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - HR 

(2 Questions)

  • Q1. Why do u want this role
  • Q2. What do u know about the organization
  • Ans. 

    The organization is a leading technology company specializing in software development and digital solutions.

    • Founded in 2005 by John Smith

    • Headquartered in Silicon Valley, California

    • Provides services in web development, mobile app development, and cloud computing

    • Clients include Fortune 500 companies such as Google and Amazon

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Easy preparation , be confident while speaking
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
6-8 weeks
Result
Selected Selected

I applied via Approached by Company and was interviewed before Dec 2023. There was 1 interview round.

Round 1 - cv based shortlisting 

(1 Question)

  • Q1. Question-related to your educational background
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Cairn Oil Interview FAQs

How many rounds are there in Cairn Oil Summer Intern interview?
Cairn Oil interview process usually has 2 rounds. The most common rounds in the Cairn Oil interview process are Group Discussion and Technical.
What are the top questions asked in Cairn Oil Summer Intern interview?

Some of the top questions asked at the Cairn Oil Summer Intern interview -

  1. Which is the best type of Circuit Breaker for higher voltages and w...read more
  2. Why Transmission Voltages are always in Multiples of 1...read more
  3. Explain what you mean by switchgear and protect...read more

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Cairn Oil Summer Intern Interview Process

based on 1 interview

Interview experience

5
  
Excellent
View more

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