Chemical Engineering  >  Heat Transfer  >  Test: Fourier Equation Download as PDF

Test: Fourier Equation


Test Description

10 Questions MCQ Test Heat Transfer | Test: Fourier Equation

Test: Fourier Equation for Chemical Engineering 2023 is part of Heat Transfer preparation. The Test: Fourier Equation questions and answers have been prepared according to the Chemical Engineering exam syllabus.The Test: Fourier Equation MCQs are made for Chemical Engineering 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Fourier Equation below.
Solutions of Test: Fourier Equation questions in English are available as part of our Heat Transfer for Chemical Engineering & Test: Fourier Equation solutions in Hindi for Heat Transfer course. Download more important topics, notes, lectures and mock test series for Chemical Engineering Exam by signing up for free. Attempt Test: Fourier Equation | 10 questions in 20 minutes | Mock test for Chemical Engineering preparation | Free important questions MCQ to study Heat Transfer for Chemical Engineering Exam | Download free PDF with solutions
1 Crore+ students have signed up on EduRev. Have you?
Test: Fourier Equation - Question 1

The famous Fourier series is named after

Detailed Solution for Test: Fourier Equation - Question 1

He gave this theory in 1824.

Test: Fourier Equation - Question 2

Fourier law of heat conduction is best represented by

Detailed Solution for Test: Fourier Equation - Question 2

According to Fourier law of heat conduction, Q = -k A d t /d x.

Test: Fourier Equation - Question 3

Here are some assumptions that are made for Fourier law. Identify the wrong one

Detailed Solution for Test: Fourier Equation - Question 3

It has constant temperature gradient and a linear temperature profile.

Test: Fourier Equation - Question 4

Consider the following statements:

The Fourier heat conduction equation
Q = -k A d t /d x
Presumes
i) Steady state conditions
ii) Constant value of thermal conductivity
iii) Uniform temperature at the wall surface
iv) One dimensional heat flow

Which of these statements are correct?

Detailed Solution for Test: Fourier Equation - Question 4

Thermal conductivity is different for different materials.

Test: Fourier Equation - Question 5

The surface temperature of body 475 K and it radiates heat to the surroundings at 335 K. If thermal conductivity of the material is 12.5 W/m degree, find the temperature gradient. Let convective coefficient be 80 W/m2 degree and radiation factor is 0.9

 

Detailed Solution for Test: Fourier Equation - Question 5

Heat conducted through the plate = convection heat losses + radiation heat losses. So, d t /d x = – 13155/12.5 = – 1052.4 degree Celsius.

Test: Fourier Equation - Question 6

Negative sign in Fourier heat conduction equation indicates

Detailed Solution for Test: Fourier Equation - Question 6

The ratio d t/d x represents the change in temperature per unit thickness i.e. the temperature gradient. So it represents heat flow in the direction of negative temperature gradient.

Test: Fourier Equation - Question 7

Transmission of heat i.e. molecular is smallest in case of

Detailed Solution for Test: Fourier Equation - Question 7

In gases atoms are arranged loosely, there is less molecular transmission of heat as compared to solids, liquids and alloys.

Test: Fourier Equation - Question 8

Which one is not the unit of thermal conductivity?

Detailed Solution for Test: Fourier Equation - Question 8

The unit kcal/m hr K could also be specified as J/m s K or W/m s K and this is actually done while quoting the numerical values of thermal conductivity.

Test: Fourier Equation - Question 9

“Thermal conductivity represents the amount of heat conducted across unit area when a temperature difference of one kelvin”. True or false

Detailed Solution for Test: Fourier Equation - Question 9

 It is across unit area and through unit distance.

Test: Fourier Equation - Question 10

Which of the following is the unit of thermal resistance?

Detailed Solution for Test: Fourier Equation - Question 10

Thermal resistance is expressed in the unit’s hr degree/kcal, degree/W and s degree/J.

58 videos|70 docs|85 tests
Use Code STAYHOME200 and get INR 200 additional OFF
Use Coupon Code
Information about Test: Fourier Equation Page
In this test you can find the Exam questions for Test: Fourier Equation solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Fourier Equation, EduRev gives you an ample number of Online tests for practice