GATE Exam > GATE Notes > MCQ: Heat Transfer, GATE
MCQ: Heat Transfer, GATE PDF Download
A building has to be maintained at 21°C (dry bulb) and 14.5°C. The outside temperature is –23°C (dry bulb) and the internal and external surface heat transfer coefficients are 8 W/m2K and 23 W/m2K respectively. If the building wall has a thermal conductivity of 1.2W/mK, the minimum thickness (in m) of the wall required to prevent condensation is:a)0.471b)0.407c)0.321d)0.125Correct answer is option 'B'. Can you explain this answer?
Ref: https://edurev.in/question/537829/A-building-has-to-be-maintained-at-21C-dry-bulb-and-14-5C-The-outside-temperature-is-23C-dry-bul
DBT = 21°C
WBT = 14.5°C
Dew point temp = 10.17°C
Tout = -23°C
hin = 8 W/m2k
hout = 23 W/m2k
k = 1.2 W/mk
FAQs on MCQ: Heat Transfer, GATE
| 1. What is heat transfer and why is it important in engineering? |  |
Ans. Heat transfer is the process of exchanging thermal energy between objects or systems due to a temperature difference. It is important in engineering as it helps in designing efficient cooling or heating systems, understanding the behavior of materials at different temperatures, and predicting the performance of various industrial processes.
| 2. What are the three modes of heat transfer? | |
Ans. The three modes of heat transfer are conduction, convection, and radiation. Conduction is the transfer of heat through direct contact between particles or objects. Convection is the transfer of heat through the movement of fluid (liquid or gas). Radiation is the transfer of heat through electromagnetic waves.
| 3. How does conduction heat transfer work? | |
Ans. Conduction heat transfer occurs when two objects at different temperatures are in direct contact with each other. The heat is transferred from the object with higher temperature to the object with lower temperature through molecular collisions. The rate of conduction heat transfer depends on the thermal conductivity of the materials and the temperature difference between the objects.
| 4. What is the difference between convection and conduction heat transfer? | |
Ans. Conduction heat transfer occurs through direct contact between objects, while convection heat transfer occurs through the movement of fluid. In conduction, heat is transferred by molecular collisions, whereas in convection, heat is transferred through the bulk movement of the fluid. Convection is more effective in transferring heat over long distances compared to conduction.
| 5. How does radiation heat transfer work? | |
Ans. Radiation heat transfer occurs through electromagnetic waves without the need for a medium or direct contact between objects. All objects emit and absorb electromagnetic radiation based on their temperature. The rate of radiation heat transfer depends on the temperature difference between the objects and their emissivity, which is the ability to emit and absorb radiation.
Related Exams
About this Document
|
4.65/5 Rating |
|
Dec 18, 2024 Last updated |
Document Description: MCQ: Heat Transfer, GATE for GATE 2024 is part of GATE preparation. The notes and questions for MCQ: Heat Transfer, GATE have been prepared according to the GATE exam syllabus. Information about MCQ: Heat Transfer, GATE covers topics like and MCQ: Heat Transfer, GATE Example, for GATE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for MCQ: Heat Transfer, GATE.
Description
Full syllabus notes, lecture & questions for MCQ: Heat Transfer, GATE - GATE | Plus excerises question with solution to help you revise complete syllabus | Best notes, free PDF download
Information about MCQ: Heat Transfer, GATE
In this doc you can find the meaning of MCQ: Heat Transfer, GATE defined & explained in the simplest way possible.
Besides explaining types of MCQ: Heat Transfer, GATE theory,
EduRev gives you an ample number of questions to practice MCQ: Heat Transfer, GATE tests, examples and also practice GATE tests.
Download as PDF
|
Explore Courses for GATE exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Related Searches
Previous Year Questions with Solutions
,shortcuts and tricks
,Sample Paper
,Semester Notes
,MCQ: Heat Transfer
,MCQ: Heat Transfer
,MCQ: Heat Transfer
,past year papers
,Viva Questions
,Summary
,practice quizzes
,Free
,Exam
,mock tests for examination
,GATE
,study material
,ppt
,Important questions
,GATE
,GATE
,Objective type Questions
,MCQs
,video lectures
,Extra Questions
;
Additional Information about MCQ: Heat Transfer, GATE for GATE Preparation
MCQ: Heat Transfer, GATE Free PDF Download
The MCQ: Heat Transfer, GATE is an invaluable resource that delves deep into the core of the GATE exam.
These study notes are curated by experts and cover all the essential topics and concepts, making your preparation more efficient and effective.
With the help of these notes, you can grasp complex subjects quickly, revise important points easily,
and reinforce your understanding of key concepts. The study notes are presented in a concise and easy-to-understand manner,
allowing you to optimize your learning process. Whether you're looking for best-recommended books, sample papers, study material,
or toppers' notes, this PDF has got you covered. Download the MCQ: Heat Transfer, GATE now and kickstart your journey towards success in the GATE exam.
Importance of MCQ: Heat Transfer, GATE
The importance of MCQ: Heat Transfer, GATE cannot be overstated, especially for GATE aspirants.
This document holds the key to success in the GATE exam.
It offers a detailed understanding of the concept, providing invaluable insights into the topic.
By knowing the concepts well in advance, students can plan their preparation effectively.
Utilize this indispensable guide for a well-rounded preparation and achieve your desired results.
MCQ: Heat Transfer, GATE Notes
MCQ: Heat Transfer, GATE Notes offer in-depth insights into the specific topic to help you master it with ease.
This comprehensive document covers all aspects related to MCQ: Heat Transfer, GATE.
It includes detailed information about the exam syllabus, recommended books, and study materials for a well-rounded preparation.
Practice papers and question papers enable you to assess your progress effectively.
Additionally, the paper analysis provides valuable tips for tackling the exam strategically.
Access to Toppers' notes gives you an edge in understanding complex concepts.
Whether you're a beginner or aiming for advanced proficiency, MCQ: Heat Transfer, GATE Notes on EduRev are your ultimate resource for success.
MCQ: Heat Transfer, GATE GATE Questions
The "MCQ: Heat Transfer, GATE GATE Questions" guide is a valuable resource for all aspiring students preparing for the
GATE exam. It focuses on providing a wide range of practice questions to help students gauge
their understanding of the exam topics. These questions cover the entire syllabus, ensuring comprehensive preparation.
The guide includes previous years' question papers for students to familiarize themselves with the exam's format and difficulty level.
Additionally, it offers subject-specific question banks, allowing students to focus on weak areas and improve their performance.
Study MCQ: Heat Transfer, GATE on the App
Students of GATE can study MCQ: Heat Transfer, GATE alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the MCQ: Heat Transfer, GATE,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of MCQ: Heat Transfer, GATE is prepared as per the latest GATE syllabus.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup