SLIET SET 2025 Question Paper with Answer Key M.Tech Chemical SET-VII

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SLIET SET 2025
Question Paper ·
M.Tech Chemical
SET-VII
EXAM YEAR TYPE SUBJECT

SLIET SET 2025 Question Paper M.Tech Chemical SET-VII
INCLUDES

Answer Key

Notes · Sample Papers · Previous Year Papers · Mock Tests

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SLIET SET 2025 Question Paper with Answer Key M.Tech Chemical SET-VII

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PaperCode: 3006 Paper Name: 3006-M.TECH.(SET-VII) CHEMICAL ENGG(PG-CE) Set Name: Original

Q-1 Find the rate of heat leakage from a spherical vessel (1.2 m diameter and 100 mm thick), if the temperature difference
between the inner and outer surfaces is 200°C. Thermal conductivity of material is 0.3 kJ /mh°C.

A 786.2W B 630.5W

C 879.1W D 936.2W
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Q-2
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In case of heat transfer equipments, LMTD stands for
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A
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Lateral mean temp. difference B Log mean temperature difference
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Log mean temperature deviation D Linear minimum temp. difference

Q-3 In which type of condensation, the heat transfer is more?

A Film wise B Drop wise

C Both A and B above D None of the above
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Q-4
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What is the mode of heat transfer through which the heat travels from sun to earth?

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A Conduction B Convection

C Radiation D All of above

Q-5 What will be the cut diameter of a cyclone (inlet width 15 cm, the shortest length 25 cm, diameter 0.50 m) operating
at five effective turns? The gas temperature is 345K and inlet velocity is 20m/s. Average particle size is 10µm with
particle density 1.2 g/cm³. The viscosity of air at 345K is 0.0745 kg/m-h.

A 13.6 µm B 18.6 µm

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C 15.6 µm D 19.6 µm
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Q-6s Which of the following is ultrafine grinder?
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C Fluidized bed jet mill D All of the above

Q-7 In natural convection, the Nusselt number is function of

A Reynold’s number & Grashoff’s number B Grashoff’s number & Reynold’s number

C Grashoff’s number & Prandtl number

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D Prandtl number & Reynold’s number
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Q-8 What will be the rate of heat transfer through a sheetSLIET SET 2025 Question
with thickness Paper with
0.2 m, thermal Answer Key0.4
conductivity M.Tech
W/mKChemical
and SET-VII
surface area 1 m² if the temperatures on both sides of sheet are 600 and 400°C?

A 800 W B 400 W

C 600 W D 200 W

Q-9 A reverse flow cyclone separator has _____ dimension ratios.

A 4 B 5

C 6 D 7

Q-10 For designing the settling chamber

A Bulk density is required B Particle density is required

C True density is required D None of the above

Q-11 At terminal velocity

A Acceleration is zero B Velocity is zero

C Acceleration is negative D None of the above

Q-12 Flooding in a column results due to

A High flow rate of liquid B Low velocity of liquid

C High pressure drop D High temperature

Q-13 Which of the following is an undesirable property for an absorbing solvent?

A Low vapour pressure B Low viscosity

C Low freezing point D None of above

Q-14 Drying of a solid involves ___________ transfer.

A Only heat B Only mass

C Both heat and mass D None of these

Q-15 Which law is used for crushing and grinding the materials?

A Bond’s law B Kick’s law

C Rittinger’s law D All of the above

Q-16 McCabe-Thiele method is used to find
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Pressure drop in the column
B SET 2025 Question Paper with Answer Key M.Tech Chemical SET-VII
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C
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None of the above

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Q-17 Filtration rate does not depend upon the

A pressure drop B resistance of the cake

C area of filtering surface D None of above

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A 0.3075 m/s B 0.1075 m/s

C 0.4075 m/s D 0.2075 m/s

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Q-19
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What will be the relative saturation for nitrogen gas if its vapour pressure is 400mmHg and the partial pressure is
300mmHg.
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A

C
100
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D
50
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Q-20 Find the moisture content on dry basis if the weight of dry solid is 5 kg and the moisture is 2 kg.

A 0.4 B 0.5

C 0.6 D 0.7
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Q-21 As per Graham’s law, which gas will diffuse faster?

A
las Oxygen B Carbon dioxide
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Q-22 15. 8 moles of A initially are added to 24 moles of B for the reaction 2A + 3B -> 4C + 5D. How many moles of D will
be produced?

A 10 B 20

C 30 D 40
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Q-23 Which of the following is a green
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A Methane Nitrous oxide
B SET 2025 Question Paper with Answer Key M.Tech Chemical SET-VII
SLIET
C Chloro fluoro carbons D All of these

Q-24 What will be the ratio of the time required for 90% conversion to time required for 45% conversion for an isothermal
second order aqueous phase reaction A → B.

A 2 B 4

C 11 D 22

Q-25 Mixed reactor of 3 litres is used for gas reaction. Volume at a rate of 1 litre/second. Space time is _____ seconds.

A 1 B 3

C 1/3 D 32

Q-26 The reason of increasing the rate of reaction by using catalyst is

A Lowering in activation energy barrier B Increase in activation energy

C Decrease in molecular collision diameter D All of the above

Q-27 With increase in temperature, the equilibrium conversion of a reversible exothermic reaction

A Decreases B Increases

C Remains unaffected D Decreases linearly with temp.

Q-28 For a zero order reaction, the concentration of product increases with

A Increase in initial concentration B Increase of reaction time

C Total pressure D Decrease in total pressure

Q-29 In a furnace, incomplete combustion results in the formation of

A Carbon soot B Carbon monoxide

C Both A and B above D None of the above

Q-30 Which of the following laws is applicable to the hydraulic lift?

A Kirchhoff’s law B Pascal’s law

C Stoke’s law D Archimedes’ law

Q-31 The value of critical Reynold’s number for pipe flow is

A 1300 B 16000

C 10000 D None of above
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SLIET SET 2025 Question Paper with Answer Key M.Tech Chemical SET-VII

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a Q-32 Which pump may require priming?
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A Reciprocating B Centrifugal

C Diaphragm D Gear

Q-33 Pitot Tube is used to measure

A Stagnation pressure B Terminal velocity
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C Velocity at stagnation point
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D Pressure drop
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Q-34 What will be the NPSH of a pump to lift water from 1 meter below the pump level (Temperature 20 °C). Reservoir is

a
open to the atmosphere. Assume the friction loss of 1.7 meters. Vap. Pr. of the system at given temperature is 2.34
kPa

A 7.4 m B 16.5 m

C 200 m D 100 m

Q-35 IRR in engineering economics stands for

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A Internal rate of return B investment rate ratio

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C Internal rapport rate D None of the above

l as Correct Answer : A

Q-36
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An investment of Rs. 100000 gives annual net profit of Rs. 10000. What is the payback period in years?

A 5 B 10

C 15 D 20

Q-37 The value of cost index for any equipment will generally _____ with time
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A Decrease B Becomes negative

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Increase D None of these
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a Q-38 For one year compounded annually, the simple interest will be _____ compounded interest

A More than B Less than

C Equal to D Inverse of

Q-39 Process which does not produce Cl₂ as a co-product during manufacture of caustic soda is

A Diaphragm electrolytic cell process
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B Lime soda process
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C Mercury electrolytic cell process
. c D None of the above
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Q-40 The cheapest material of construction for the storage SLIET SET 2025
of sodium Question
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a concentration of M.Tech
75% isChemical SET-VII

A Copper B Nickel

C Silver D Stainless steel

Q-41 In the solvex plants, the solvent used for oil extraction is mainly _________.

A Furfural B Propane

C Hexane D Butane

Q-42 In Contact process, SO₃ is adsorbed in H₂SO₄ and not in water, because

A Mist is formed and absorption becomes B Temperature increases if dissolved in water
difficult

C Absorption of gas in water is zero D Acid is good absorber of gas

Q-43 Teflon (PTFE) is corroded by

A Dilute HCl acid B Conc. HCl acid

C Sulphuric acid D None of above

Q-44 Coefficient of performance of a Carnot’s refrigeration working between two extreme temperatures of 5°C and 50°C will
be

A 0.11 B 6.18

C 0.9 D 9.0

Q-45 Gibbs-Duhem equation is used for

A Checking the consistency of B Finding boiling temperature
thermodynamic data

C Relating fugacity with pressure D None of the above

Q-46 Two liquids form an azeotropic mixture can be separated by

A Batch distillation B Extractive distillation

C Crystallization D Leaching

Q-47 To double the volume of a given mass of an ideal gas at 290°K keeping the pressure constant, raise temperature to

A 580°K B 700°K

C 300°K D 1000°K

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Q-48 For a chemical reaction at equilibrium, change in Gibb’s energy

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A Zero B Greater than zero

C Less than Zero D None of above

Q-49 The component of fuel which initiates the combustion is

A Oxygen B Hydrogen

C Volatile matter D Carbon
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Q-50
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Material of construction for storage of sulphuric acid is
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A HDPE
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C FRP
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Q-51 An amount is invested at 10% per annum compound interest for 2 years, and the interest earned is Rs. 840. What is
the principal amount?

A Rs. 3500 B Rs. 4500

C Rs. 4000 D Rs. 5000

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Q-52
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In covering a distance of 30 km, A takes 2 hours more than B. If A doubles his speed, then he would take 1 hour less

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than B. A's speed is:

A 5 km/h B 7 km/h

C 9 km/h D 10 km/h

Q-53 Fill the blank in the middle of the following series.
SCD, TEF, UGH, ____, WKL

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A CMN B UJI

C VIJ
m D IJT
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Q-54 The Chandrayaan 3 mission’s rover is known as a
a A PSLV B Pragyaan

C Dhruv D Vikram

Q-55 We were very tired, So we _______ early.

A Leave B Leaving

C Left
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D Lost
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Correct Answer : C m
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SLIET SET 2025 Question Paper with Answer Key M.Tech Chemical SET-VII
Q-56

A If λ=5, then system has unique solution B If λ=5, then system has infinitely many
solutions

C If λ=5, then system has no solution D System is inconsistence for any value of λ

Q-57

A 0 B 1

C -2 D 2

Q-58

A 2.40 B 2.33

C 2.12 D 2.50

Q-59

A 31/3 B 35/3

C 37/3 D 38/3

Q-60

A B

C D

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