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Chemical Engineering Exam  >  Chemical Engineering Tests  >  Test: Transmissivity - Chemical Engineering MCQ

Test: Transmissivity - Chemical Engineering MCQ


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10 Questions MCQ Test - Test: Transmissivity

Test: Transmissivity for Chemical Engineering 2024 is part of Chemical Engineering preparation. The Test: Transmissivity questions and answers have been prepared according to the Chemical Engineering exam syllabus.The Test: Transmissivity MCQs are made for Chemical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Transmissivity below.
Solutions of Test: Transmissivity questions in English are available as part of our course for Chemical Engineering & Test: Transmissivity solutions in Hindi for Chemical Engineering course. Download more important topics, notes, lectures and mock test series for Chemical Engineering Exam by signing up for free. Attempt Test: Transmissivity | 10 questions in 10 minutes | Mock test for Chemical Engineering preparation | Free important questions MCQ to study for Chemical Engineering Exam | Download free PDF with solutions
Test: Transmissivity - Question 1
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The value of transmissivity may vary from

Detailed Solution for Test: Transmissivity - Question 1

This is very small quantity. The response of the body to incident radiations is, however, completely independent of and unaffected by the simultaneous emission from the body.

Test: Transmissivity - Question 2
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Of the radiant energy 350W/m2 incident upon a surface 250W/m2 is absorbed, 60W/m2 is reflected and the remainder is transmitted through the surface. Workout the value for reflectivity for the surface material

Detailed Solution for Test: Transmissivity - Question 2

Reflectivity = fraction of total energy reflected by the body = 60/350 = 0.171.

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Test: Transmissivity - Question 3
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“Transmissivity can also be defined as ratio of transmitted radiation to that of incident energy flow”. True or false

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It is the ratio of incident energy flow to that of transmitted radiations.

Test: Transmissivity - Question 4
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A cavity with a small hole will always behave as a
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No radiation passing in and out will have any effect upon the equilibrium of radiation inside the cavity.

Test: Transmissivity - Question 5
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What is the wavelength band of gamma rays?
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This is the maximum and minimum wavelength for gamma rays.

Test: Transmissivity - Question 6
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Transmissivity is defined as
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It is fraction of total energy transmitted by the body.

Test: Transmissivity - Question 7
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A polished metal pipe 5 cm outside diameter and 370 K temperature at the outer surface is exposed to ambient conditions at 295 K temperature. The emissivity of the surface is 0.2 and the convection coefficient of heat transfer is 11.35 W/m2 degree. Calculate the overall coefficient of heat transfer by the combined mode of convection and radiation
Detailed Solution for Test: Transmissivity - Question 7

The total heat exchange can be expressed as, Q = U A d t where U is the overall coefficient of heat transfer.

Test: Transmissivity - Question 8
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Radiant energy with an intensity of 800 W/m2 strikes a flat plate normally. The absorptivity is thrice the reflectivity and twice the transmissivity. Determine the rate of transmission
Detailed Solution for Test: Transmissivity - Question 8

Rate of transmission = TQ0 = 145.47 W/m2.

Test: Transmissivity - Question 9
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With respect to incident radiation, transmissivity varies with
Detailed Solution for Test: Transmissivity - Question 9

For transparent body, transmissivity is equal to unity.

Test: Transmissivity - Question 10
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A body through which all the incident radiations passes, is called
Detailed Solution for Test: Transmissivity - Question 10

For transparent body, transmissivity is unity.

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Transmissivity MCQs with Answers

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