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Cairn Oil Summer Intern Interview Questions, Process, and Tips
Cairn Oil Summer Intern Interview Experiences
1 interview found
Anonymous
Selected
I applied via Campus Placement and was interviewed in Feb 2024. There were 2 interview rounds.
Topic:- Deadlines should be strictly followed during a Project in an industry or not
(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 ...
- 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...
- 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...
- 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...
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Selected
I applied via Recruitment Consulltant and was interviewed before Jul 2022. There were 3 interview rounds.
(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...
- 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...
(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...
- Q2. How the ground slag enhance concrete performance was discussed. The effects of ground slag in concrete especially durability of concrete was discussed
Demo Oo
(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
I applied via Naukri.com and was interviewed before Aug 2020. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. About company
Interview Preparation Tips
Everything is fine and company culture is very good.
Selected
I applied via Company Website and was interviewed before Feb 2022. There were 2 interview rounds.
(2 Questions)
- Q1. What is cavitation in centrifugal pump? How do you mean by NPSH?
- Ans.
Cavitation is the formation of vapor bubbles in a centrifugal pump due to low pressure. NPSH stands for Net Positive Suction Head.
Cavitation occurs when the pressure at the pump inlet drops below the vapor pressure of the liquid, causing the formation of vapor bubbles.
These vapor bubbles collapse when they reach higher pressure areas, leading to damage to the pump impeller and reduced pump performance.
Cavitation can be...
- Q2. What is surging? How do you manage lubrication in different rotating equipment?
- Ans.
Surging is a phenomenon in rotating equipment where the flow rate becomes unstable.
Surging occurs when the flow rate through a rotating equipment fluctuates due to changes in operating conditions.
It can lead to reduced efficiency, increased wear and tear, and potential damage to the equipment.
To manage lubrication in different rotating equipment, it is important to monitor and control the flow rate, viscosity, and temp...
Interview Preparation Tips
Interview Questionnaire
1 Question
- Q1. Things to consider during invoice processing.
- Ans.
During invoice processing, it is important to consider accuracy, completeness, and timeliness.
Ensure all necessary information is included on the invoice
Verify the accuracy of the amounts and calculations
Match the invoice to the corresponding purchase order or contract
Ensure timely processing to avoid late payment fees or missed discounts
Interview Preparation Tips
(2 Questions)
- Q1. Family background and experience questions
- Q2. Google about company
Interview Preparation Tips
Prepare yourself for good communication
Selected
I applied via Approached by Company and was interviewed in Sep 2023. There was 1 interview round.
(1 Question)
- Q1. About heat treatment Types of gear and uses Day to day work profile Knowledge about rolling mill and furnace Problem solving skills
Interview Preparation Tips
(2 Questions)
- Q1. About your process.
- Q2. About your KRA.
(2 Questions)
- Q1. About your KRA.
- Q2. About your self.
Interview Preparation Tips
I applied via Naukri.com and was interviewed before Jun 2021. There were 2 interview rounds.
(2 Questions)
- Q1. Sap knowledge is a must
- Q2. You need to be always ready to work on weekends
Interview Preparation Tips
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Cairn Oil Summer Intern Interview Process
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Rating in categories
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salaries
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| ₹7 L/yr - ₹19 L/yr |
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| ₹10 L/yr - ₹18.5 L/yr |
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