Heat Transfer Objective Type Questions and Answers for competitive exams. These short objective type questions with answers are very important for competitive exams like IIT …
Mechanical Engineering Heat and Mass Transfer MCQ, Quiz, Objective Type, Multiple Choice, Online Test, Mock Test, Question Bank, GATE, NEET, , MAT, XAT, SAT, TANCET Previous Year Questions and Answers Pdf Free Download. - 1. ... 1000+ Heat Transfer Multiple Choice Questions & Answers; 1000+ Heat Transfer Objective Type …
Section Learning Objectives. By the end of this section, you will be able to do the following: Explain heat, heat capacity, and specific heat. Distinguish between conduction, …
These Objective type Heat Transfer Questions are very important for campus placement test and job interviews. As per my experience good interviewers hardly plan to ask any particular question during your Job interview and these model questions are asked in the online technical test and interview of many IT & Non IT Industries. 1. …
Get Types of Heat Exchangers Multiple Choice Questions (MCQ Quiz) with answers and detailed solutions. ... Plate Type Heat Exchanger: They are well suited for liquid-to-liquid heat transfer. The hot and cold fluid flow in alternate passages and thus cold fluid stream is surrounded by two hot fluid stream.
Q = mcΔT, Q = m c Δ T, 11.7. where m is the mass of the substance and Δ T is the change in its temperature, in units of Celsius or Kelvin. The symbol c stands for specific heat, and depends on the material and phase. The specific heat is the amount of heat necessary to change the temperature of 1.00 kg of mass by 1.00 ºC.
26. The concept of overall coefficient of heat transfer is used in heat transfer problems of A. conduction B. convection C. radiation D. all the three combined E. conduction and comte_ction. Answer: E. 27. In heat transfer, conductance equals conductivity (kcal/hr/sqm/°C/cm) divided by A. hr (time) B. sqm (area) C. °C …
Answer. Question 2. Sea breeze and land breeze occur due to convection currents set up in the air. Answer. Question 3. The heat from sun reaches us through convection. Answer. Question 4. Conduction is a process of heat transfer in which vibrating particles give energy to the neighbouring ones.
UKPSC. OPSC. Start FREE online test with Heat-Transfer quiz for Gate Mechanical Engineering exam 2019-20. Improve your score by attempting Heat-Transfer objective type MCQ questions paper listed along with detailed answers.
I hope that you like the Multiple-choice Questions on Modes of Heat Transfer along with the short questions. The definitions of basic modes of heat transfer- conduction, convection, and radiation have not been discussed here as you have already studied those in your school. Wish you all good luck for your upcoming GATE Examination. Best Wishes!
22 Total heat is the heat required to. A change vapour into liquid. B change liquid into vapour. C increase the temperature of a liquid or vapour. D convert water into steam and superheat it. View Answer. Answer: convert water into steam and superheat it. 23 Thermal conductivity of water at 20°C is of the order of. A 0.1.
4. Mark the system where heat transfer is given by forced convection. a) Chilling effect of cold wind on warm body. b) Fluid passing through the tubes of a condenser and other heat exchange equipment. c) Heat flow from a hot pavement to surrounding atmosphere. d) Heat exchange on the outside of cold and warm pipes. View Answer.
Based upon the nature of heat exchange process, the heat exchangers are classified into how many categories. a) 1. b) 2. c) 3. d) 4. View Answer. advertisement. 4. The energy transfer between the hot fluid and cold fluids is brought …
Question 2: Fill in the blanks. (b) Temperature is the degree of hotness or coldness of an object. (d) The handles of cooking utensils are made up of insulating materials. (e) Heat flows from hotter body to colder body. (f) Convection is the transfer of heat one place to another by movement of fluids. (g) Heat is a form of energy.
EXERCISE (OBJECTIVE TYPE QUESTIONS) Medium. English. Academic Year. 2023-2024. Question 1. Fill in the blank spaces by choosing the correct words from the list given below: List: contracts, heating, expand, linear, inflated. The increase in length of an iron rod on heating is called ___________expansion. View Solution.
Heat transferred from the burner of a stove through the bottom of a pan to food in the pan is transferred by conduction. Convection is the heat transfer by the macroscopic movement of a fluid. This type of transfer takes place in a forced-air furnace and in weather systems, for example.
1. Crystal size in a continuous crystalliser depends upon the. rate of heat transfer. degree of turbulence. degree of supersaturation. all (a), (b) and (c). 2. Heat waves. can not pass …
Heat Transfer Question 1: Which of the following is not the characteristics of Planck's black body radiation distribution. As temperature increases, the peak of the curve shift towards higher wavelength. Spectral emissive power varies continuously with the change in wavelength. At a given wavelength, as temperature increases, emissive power ...
Heat is basically a form of energy. Every atom and molecule has the property to transfer heat. Basically heat transfer takes place between two bodies when there is temperature difference between them. Heat can be transferred in 3 ways. These are conduction, convection and radiation. Conduction, convection and radiation are related to …
These 40 MCQs cover various aspects of Heat and Mass Transfer in Mechanical Engineering, including fundamental concepts, different modes of heat transfer, dimensionless numbers, and practical applications. They are designed to test knowledge in both theoretical and practical contexts. 1. What is conduction in the context of heat …
In this article, I will display some Multiple-Choice Questions on Heat Transfer that will boost you in examinations and also in viva. In the last section, there will be a Quiz on Heat Transfer. Appear for the test and fall in love with studying a lot of objective-type questions. To download this MCQ sheet, you have to reach the end of …
Q α – A dT / dx Q = -kA dT /dx Where, A – Area in m2 . dT / dx – Temperature gradient, K/m k – Thermal conductivity, W/mK. 5. Define Thermal conductivity. Thermal conductivity is defined as the ability of a substance to conduct heat. 6. Write down the equation for conduction of heat through a slab or plane wall.
Use the equation for heat transfer Q = mcΔT Q = m c Δ T to express the heat lost by the aluminum pan in terms of the mass of the pan, the specific heat of …
Chapterwise Multiple Choice Questions on Engineering Thermodynamics. Our 1000+ MCQs focus on all topics of the Thermodynamics subject, covering 100+ topics. This will help you to prepare for exams, contests, …
Heat Exchanger Question 2: Consider a counter-flow heat exchanger with the inlet temperatures of two fluids (1 and 2) being T 1, in = 300 K and T 2, in = 350 K. The heat capacity rates of the two fluids are C 1 = 1000 W/K and C 2 = 400 W/K, and the effectiveness of the heat exchanger is 0.5. The actual heat transfer rate is _____ kW.
Question 23 STATEMENT 1:Thermal conduction is the heat transfer that occurs in the direction of temperature decrease STATEMENT 2:Thermal conduction is solids occurs due to vibrational energy of the molecules about the equilibrium position. Answer (b) Question 24 STATEMENT 1: If a body is in thermal equilibrium with the surroundings then it will …
The three types of heat transfer differ according to the nature of the medium that transmits heat: Conduction requires contact. Convection requires fluid flow. Radiation does not require any medium. Conduction is heat transfer directly between neighboring atoms or molecules. Usually, it is heat transfer through a solid.
Free download in PDF Heat Transfer Multiple Choice Questions and Answers for competitive exams. These short objective type questions with answers are very important for competitive exams like IIT-JEE, AIIMS, NEET etc. as well as Board exams. These short solved questions or quizzes are provided by Gkseries.
Objectives Question and Answers – Heat Transfer. Heat Transfer related technical aptitude questions. Heat and Mass Transfer MCQ Objective Question and Answers Part 1. Heat and Mass Transfer MCQ Objective Question and Answers Part 2. Heat and Mass Transfer MCQ Objective Question and Answers Part 3. Note: This List will Update Soon.
1. The wet bulb temperature during sensible heating of air. remains constant. increases. decreases. 2. The C.O.P. of an absorption type refrigerator is given by (where T1 = Temperature at which the working substance receives heat, T2 = Temperature of cooling water, and T3 = Evaporator temperature) 3.