ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

Mechanical & Power Plant Engineering Interview Questions And Answers

Updated on July 6, 2014

Some Most Important Mechanical Interview Question

Q.1 What is your favorite mechanical engineering subject?

Ans. You have to prepare for this question. This is basically asked for confirming your knowledge and IQ. For answering this question you have to be very careful about that. Select your best and favorite subject on which you have good command. Answer confidently.

Q. 2 What are you doing nowadays?

Ans. This is the question which express your way of spending the time. So be careful about this specially, if you are a fresher. You may tell that you are preparing for some career goal and other useful things which could express your sincerity about your career. On the other hand if you are working in any organization you can tell about your position and work experience.

Q.3 What was your project topic in

Ans. This question is usually asked to check your area of interest. Your project define your skills and your way of thinking and your understanding power. So tell the little bit basic things about your project which express the key point of project.

Q.4 How do you see yourself after five year?

Ans. This question is usually asked by the interviewer to know your interest about your profession. You have to give a valuable answer about this question. You can say that ,I will be the senior or chief person of my profession.

Q.5 What are the software you know?

Ans. In this question you can tell about the software, what you have done during the and your working life. You have to tell about models, you have done from that particular software, such as drafting, sketcher, wire frame, sheet metal, assembly, CAM, manufacturing etc.

Important And Basic Interview Questions

Q. 1 What are the major sources of energy?

Ans. Sources of energy are the objects, that provide energy in usable quantities.

The main sources are....

1 Fuels

Solid ...Coal, coke, anthracite etc

Liquid... Petroleum and its Derivative.

Gases....Natural gas, blast furnace gases.

2 Water energy

3 Nuclear energy

4 Wind energy

5 Solar energy

6 Tidal energy

7 Geothermal Energy

8 Thermoelectric Power

Q. 2 Classification of fuels.

Ans. 1 Solid (a) Primary ( woo, peat, Lignite coal).

(b) Secondary (coke, charcoal, briquettes)

2 Liquid (a) Petroleum

(b) Gasoline, Kerosene, fuel oil, alcohol,benzol, shale oil

3 Gaseous (a) Gaseous

(b) Petroleum gas, Producer gas, Coal gas, coke-oven gas, blast furnace gas, carburetted gas, sewer gas..

Q.3 What are the possible fuels used for generation of steam?

Ans. Fuels are solid, liquid,gaseous and as natural o prepared. Fuels for power plant are coal, oil,and gas, Gaseous fuels are economic when power plant is located near the natural gas resource field or gas manufacturing industries.

Q.4 What are the important coal properties relevant to boilers?

Ans. Swelling Index, Grindability,, Sulphur content,heating value And weatherability.

Q. 5 What is the proximate analysis of coal?

Ans. FC + VM+ v + A= 100% by MASS.

FC= fixed carbon, VM= volatile metal, M= metal, A= ash

Some Basic Mechanical Industries Interview Questions

Q. 1 What is a chemical fuel? How does it differ from a nuclear fuel?

Ans. Chemical fuel is a substance that release heat energy on combustion. The primary combustible fuel's components are carbon and hydrogen.

Q. 2 What is Particulate matter?

Ans. Particulate matter can be either dust or other particles which have diameter less then or equal to 1 micron.

Q.3 What is particulate emission and how it can be controlled?

Ans. Particle Emission is of two types 1 some particles which do not get down and 2 the particles which get down after emission these are the particles having diameter more then 10 micron. This particulate emission can be seen in three forms.

1 Smoke

2 Fumes

3 Fly-ash

4 Cinders

Control of particulate emission

Air filter should be installed near the industrial area.

More and more plantation. High exhaust column. Other air filtering process.

Did you like first five questions?

See results

The Best Mechanical Engineering Interview Questions

Q. 1 What are the methods of reducing the wheel or rotor speed?

Ans 1 Velocity compounding

2 Pressure compounding

3 Pressure and velocity compounding

Q.2 What is the pressure range for a low pressure steam turbine?

Ans. The range of steam pressure varies from 1.2 to 2 atm.

Q. 3 What are the types of steam nozzles?

Ans. These are of two types

1 Convergent-divergent type nozzle

2 Convergent nozzle

Q.4 What is boiler efficiency?

Ans. Boiler efficiency is the ratio of heat actually utilized in generating the steam to the total heat supplied by the fuel in the same period.

Q. 5 What is the purpose of feed heating in turbines?

Ans. The purpose of feed heating in turbine is to reduce the waste of fuel and hot flue gases. By doing this efficiency can be increased up to 2-5 %.


    0 of 8192 characters used
    Post Comment
    • profile image


      4 years ago

      What lirbaeting knowledge. Give me liberty or give me death.

    • profile image


      4 years ago

      very initially "咁都唔使咒罵人地全家喺 豬 啫 當事人喺唔著 但罵嗮人地全家 無需要呀 " 無風起浪? I am/ was very dotippiansed that my friend BBF who 罵嗮人地全家 無需要呀 that was totally unnecessary at all! Humbly yoursthe inner space


    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

    For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at:

    Show Details
    HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
    LoginThis is necessary to sign in to the HubPages Service.
    Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
    AkismetThis is used to detect comment spam. (Privacy Policy)
    HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
    HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
    Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
    CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
    Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the or domains, for performance and efficiency reasons. (Privacy Policy)
    Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
    Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
    Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
    Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
    Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
    VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
    PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
    Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
    MavenThis supports the Maven widget and search functionality. (Privacy Policy)
    Google AdSenseThis is an ad network. (Privacy Policy)
    Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
    Index ExchangeThis is an ad network. (Privacy Policy)
    SovrnThis is an ad network. (Privacy Policy)
    Facebook AdsThis is an ad network. (Privacy Policy)
    Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
    AppNexusThis is an ad network. (Privacy Policy)
    OpenxThis is an ad network. (Privacy Policy)
    Rubicon ProjectThis is an ad network. (Privacy Policy)
    TripleLiftThis is an ad network. (Privacy Policy)
    Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
    Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
    Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
    Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
    ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
    Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)