Test: Heat Transfer - 5


25 Questions MCQ Test Heat Transfer for Engg. | Test: Heat Transfer - 5


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This mock test of Test: Heat Transfer - 5 for Chemical Engineering helps you for every Chemical Engineering entrance exam. This contains 25 Multiple Choice Questions for Chemical Engineering Test: Heat Transfer - 5 (mcq) to study with solutions a complete question bank. The solved questions answers in this Test: Heat Transfer - 5 quiz give you a good mix of easy questions and tough questions. Chemical Engineering students definitely take this Test: Heat Transfer - 5 exercise for a better result in the exam. You can find other Test: Heat Transfer - 5 extra questions, long questions & short questions for Chemical Engineering on EduRev as well by searching above.
QUESTION: 1

What is the steam economy in case of a single effect evaporator system ?

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QUESTION: 2

If average heat transfer co-efficient is ha and the local coefficient at the end of the plate is hl then in case of heat transfer to a fluid flowing over a flat plate, heated over its entire length

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QUESTION: 3

jH factor for heat transfer is not a function of the __________ number.

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QUESTION: 4

The Fourier number (defined as a.t/L2) is used in the analysis of problem involving heat transfer by

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QUESTION: 5

The energy radiated from a surface Q at absolute temperature T is related as

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QUESTION: 6

Baffles are provided in heat exchangers to increase the

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QUESTION: 7

In case of a vertical tube evaporator, with increase in the liquor level, the

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QUESTION: 8

The ratio of total radiating power to the absorptivity of the body depends upon the __________ as per Kirchoffs law.

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QUESTION: 9

200 kg of solids (on dry basis) is subjected to a drying process for a period of 5000 seconds. The drying occurs in the constant rate period with the drying rate as, Nc = 0.5 x 10-3 kg/m2.s. The initial moisture content of the solid is 0.2 kg moistu

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QUESTION: 10

For gases, the thermal conductivity increases with temperature rise. For liquids, with increase in concentration, its thermal conductivity generally

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QUESTION: 11

In a liquid-liquid heat exchanger, for the same process temperature, the ratio of the LMTD in parallel flow to the LMTD in counter flow is always

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QUESTION: 12

Which of the following forced convection heat transfer equation accounts for the liquid viscosity effect for viscous liquids ?

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QUESTION: 13

With increase in temperature, the thermal conductivity of steel

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QUESTION: 14

A 2-4 heat exchanger involves

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QUESTION: 15

The main function of baffles provided in a shell and tube heat exchanger is to

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QUESTION: 16

In a single effect evaporator, the economy is

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QUESTION: 17

Latent heat absorbed by 1 lb of water at 212oF, when it is changed to steam at 212oF, may be around __________ BTU.

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QUESTION: 18

LMTD correction factor which is to be applied for a cross-flow heat exchanger increases with increase in the number of shell passes. Its value for a single pass cross flow heat exchanger is

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QUESTION: 19

Which of the following is not concerned with the heat transfer?

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QUESTION: 20

In counter flow compared to parallel flow,

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QUESTION: 21

The thermal radiative flux from a surface of emissivity = 0.4 is 22.68 kW/m2. The approximate surface temperature (K) is
(Stefan-Boltzman constant = 5.67xl0-8 W/m2.K4)

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QUESTION: 22

Crystallisation of solids from a homogeneous solution is a/an __________ process.

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QUESTION: 23

A multiple effect evaporator has a capacity to process 4000 kg of solid caustic soda per day, when it is concentrating from 10% to 25% solids. The water evaporated in kg per day is

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QUESTION: 24

Heat transfer in the laminar sublayer in case of a liquid flowing through a pipe, is mostly by

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QUESTION: 25

Value of Prandtl number for water ranges from

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