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GATE Chemical 2020 | Question: 38
A U-tube manometer contains two manometric fluids of densities $1000 \: kg \: m^{-3}$ and $600 \: kg \: m^{-3}$. When both the limbs are open to atmosphere, the differenc...
soujanyareddy13
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soujanyareddy13
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Nov 16, 2020
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GATE Chemical 2020 | Question: 37
A feed stream containing pure species $L$ flows into a reactor, where $L$ is partly converted to $M$ as shown in the figure.The mass flow rate of the recycle stream is $2...
soujanyareddy13
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GATE CH 2022 | Question: 31
Two large parallel planar walls are maintained at $1000\:K$ and $500\:K$. Parallel radiation shields are to be installed between the ... the walls is (are) $1$ $0$ $2$ $3$
Two large parallel planar walls are maintained at $1000\:K$ and $500\:K$. Parallel radiation shields are to be installed between the two walls. Assume that the emissiviti...
Arjun
4.7k
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Arjun
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Feb 15, 2022
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GATE Chemical 2014 | Question: 15
Packed towers are preferred for gas-liquid mass transfer operation with foaming liquids becausein packed towers, high liquid to gas ratio are best handledin packed towers...
Milicevic3306
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Milicevic3306
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Mar 25, 2018
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GATE CH 2021 | Question: 43
A straight fin of uniform circular cross section and adiabatic tip has an aspect ratio (length/diameter) of $4$. If ... is ___________ $\%$ (round off to nearest integer).
A straight fin of uniform circular cross section and adiabatic tip has an aspect ratio (length/diameter) of $4$. If the Biot number (based on the radius of the fin as the...
go_editor
1.4k
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go_editor
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Mar 1, 2021
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GATE CH 2021 | Question: 6
Heat transfer coefficient for a vapor condensing as a film on a vertical surface is given by Dittus- ... equation Nusselt theory Chilton-Colburn analogy Sieder-Tate equation
Heat transfer coefficient for a vapor condensing as a film on a vertical surface is given byDittus-Boelter equationNusselt theoryChilton-Colburn analogySieder-Tate equati...
go_editor
1.4k
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go_editor
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Mar 1, 2021
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GATE Chemical 2018 | Question: 16
Choose the correct statementIn viscose rayon manufacturing process,carbon disulphide used as reactant for xanthate formation is regenerated in a later stepcaustic soda us...
gatecse
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gatecse
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Feb 20, 2018
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GATE Chemical 2020 | Question: 17
Consider an incompressible flow of a constant property fluid over a smooth, thin and wide flat plate. The free stream flows parallel to the surface of the plate along its...
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GATE CH 2021 | Question: 27
Consider a fluid confined between two horizontal parallel plates and subjected to shear flow. In the ... is ___________ Newtonian Pseudoplastic Dilatant Ideal and inviscid
Consider a fluid confined between two horizontal parallel plates and subjected to shear flow.In the first experiment, the plates are separated by a distance of $1 \: mm$....
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go_editor
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Mar 1, 2021
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GATE Chemical 2020 | Question: 42
Consider an infinitely long rectangular fin exposed to a surrounding fluid at a constant temperature $T_a=27^{\circ}C$.The steady state one dimensional energy balance on ...
soujanyareddy13
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soujanyareddy13
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Nov 16, 2020
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GATE Chemical 2019 | Question: 15
Three distillation schemes for separating an equimolar, constant relative volatility $ABC$ mixture into nearly pure components are shown. The usual simplifying assumption...
Arjun
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Arjun
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Feb 24, 2019
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gate2019
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GATE Chemical 2019 | Question: 23
For a hydraulic lift with dimensions shown in figure, assuming $g=10\:m/s^{2}$, the maximum diameter $D_{left}$ (in $m$) that lifts a vehicle of mass $1000 \:kg$ using a...
Arjun
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Arjun
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Feb 24, 2019
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GATE Chemical 2020 | Question: 45
An aqueous suspension at $60^{\circ}C$ is fed to the first effect of a double effect forward feed evaporator with a mass flow rate of $1.25 \: kg \: s^{-1}$. The sum of t...
soujanyareddy13
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soujanyareddy13
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Nov 16, 2020
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GATE Chemical 2020 | Question: 16
A rigid spherical particle undergoes free settling in a liquid of density $750 \: kg \: m^{-3}$ and viscosity $9.81 \times 10^{-3} \: Pa \: s$. Density of the particle is...
soujanyareddy13
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soujanyareddy13
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Nov 16, 2020
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GATE Chemical 2018 | Question: 27
In the year $2005$, the cost of a shell and tube heat exchanger with $68\:m^{2}$ heat transfer area was $Rs.\:12.6$ Lakh. Chemical Engineering Index for cost in $2005$ wa...
gatecse
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gatecse
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Feb 20, 2018
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GATE Chemical 2020 | Question: 48
Consider a vertically falling film of water over an impermeable wall. The film is in contact with a static pool of an non-reactive pure gas. The gas diffuses into the wat...
soujanyareddy13
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soujanyareddy13
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Nov 16, 2020
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GATE CH 2023 | Question: 15
Which one of the following statements related to octane number is NOT correct? Linear alkanes with higher carbon ... Gasoline quality is measured in terms of octane number.
Which one of the following statements related to octane number is NOT correct?Linear alkanes with higher carbon number have higher octane number.Branching in linear alkan...
admin
2.8k
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admin
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May 21, 2023
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GATE Chemical 2012 | Question: 30
An insulated, evacuated container is connected to a supply line of an ideal gas at pressure $P_s$, temperature $T_s$ and specific volume $V_s$. The container is filled wi...
Milicevic3306
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Milicevic3306
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Mar 25, 2018
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GATE CH 2021 | Question: 55
A viscous liquid is pumped through a pipe network in a chemical plant. The annual pumping cost per unit length of ... is _______ meter (round off to $3$ decimal places).
A viscous liquid is pumped through a pipe network in a chemical plant. The annual pumping cost per unit length of pipe is given by $$C_{\text{pump}} = \dfrac{48.13\: q^2 ...
go_editor
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go_editor
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Mar 1, 2021
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GATE CH 2023 | Question: 36
An exhibition was held in a hall on $15$ August $2022$ between $\text{3 PM}$ and $\text{4 PM}$ during which any person was ... $\frac{2}{9}$ $\frac{7}{9}$
An exhibition was held in a hall on $15$ August $2022$ between $\text{3 PM}$ and $\text{4 PM}$ during which any person was allowed to enter only once. Visitors who entere...
admin
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admin
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May 21, 2023
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GATE Chemical 2019 | Question: 11
For a first order reaction in a porous spherical catalyst pellet, diffiusional effects are most likely to lower the observed rate of reaction for slow reaction in a pell...
Arjun
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Arjun
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Feb 24, 2019
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GATE CH 2021 | Question: 3
The heat of combustion of methane, carbon monoxide and hydrogen are $P$, $Q$ and $R$ ... $Q+3R-P$ $P-Q-R$ $Q+R-P$
The heat of combustion of methane, carbon monoxide and hydrogen are $P$, $Q$ and $R$ respectively. For the reaction below, $$CH_4+H_2O \rightarrow CO+3H_2$$ the heat of r...
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Mar 1, 2021
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GATE Chemical 2019 | Question: 18
In Kraft process, the essential chemical reagents used in the digester arecaustic soda, mercaptans and ethylene oxidecaustic soda, sodium sulphide and soda ashquick lime,...
Arjun
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Arjun
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Feb 24, 2019
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GATE CH 2022 | Question: 15
A simple distillation column is designed to separate an ideal binary mixture to specified distillate and bottoms purities at a given ... $RR >> RR_{\text{min}}$
A simple distillation column is designed to separate an ideal binary mixture to specified distillate and bottoms purities at a given column pressure. It $RR_{\text{min}}$...
Arjun
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Arjun
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Feb 15, 2022
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GATE CH 2023 | Question: 29
For a fully developed turbulent flow of an incompressible Newtonian fluid through a pipe of constant diameter, ... pressure gradient in the flow direction is constant.
For a fully developed turbulent flow of an incompressible Newtonian fluid through a pipe of constant diameter, which of the following statements is/are $\text{CORRECT?}$R...
admin
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admin
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May 21, 2023
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GATE CH 2023 | Question: 64
The purchase cost of a new distillation column is $\text{Rs. 10 lakhs}$ with an installation factor ... capital is________________ (rounded off to one decimal place).
The purchase cost of a new distillation column is $\text{Rs. 10 lakhs}$ with an installation factor of $5.8.$ The cost of the capital is to be annualized over a period of...
admin
2.8k
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admin
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May 21, 2023
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GATE CH 2021 | Question: 22
Consider a steady flow of an incompressible, Newtonian fluid through a smooth circular pipe. Let ... is ______ (round off to $2$ decimal places).
Consider a steady flow of an incompressible, Newtonian fluid through a smooth circular pipe. Let $\alpha_{\textit{laminar}}$ and $\alpha_{\textit{turbulent}}$ denote the ...
go_editor
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go_editor
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Mar 1, 2021
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GATE CH 2023 | Question: 57
Distillation of a non-reactive binary mixture with components $A$ and $B$ is carried out in a batch ... the vessel is____________(rounded off to three decimal places).
Distillation of a non-reactive binary mixture with components $A$ and $B$ is carried out in a batch still as shown in the figure below. The initial charge of the mixture ...
admin
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admin
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May 21, 2023
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GATE CH 2021 | Question: 4
A batch settling experiment is performed in a long column using a dilute dispersion containing equal number of particles of ... $A$ particles on top of type $B$ particles
A batch settling experiment is performed in a long column using a dilute dispersion containing equal number of particles of type $A$ and type $B$ in water (density $1000 ...
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Mar 1, 2021
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GATE Chemical 2018 | Question: 53
The humidity of air at a dry-bulb temperature of $65^{\circ}\:C$ is $0.025$ $kg$ water/$kg$ dry air. The latent heat of vaporization of water at $0^{\circ}\:C$ is $2500$ ...
gatecse
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gatecse
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Feb 20, 2018
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GATE Chemical 2018 | Question: 49
The volume of liquid filled in a spherical storage tank of radius $R$ is computed from height of liquid, $h$, in the outside tube (neglecting the volume of liquid in the ...
gatecse
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gatecse
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Feb 20, 2018
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GATE CH 2023 | Question: 65
Pumps $A$ and $B$ are being considered for purchase in a chemical plant. Cost details for these two pumps are given in the ...
Pumps $A$ and $B$ are being considered for purchase in a chemical plant. Cost details for these two pumps are given in the table below. The interest rate is $10 \%$ per a...
admin
2.8k
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admin
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May 21, 2023
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GATE Chemical 2020 | Question: 15
Annual capacity of a plant producing phenol is $100$ metric tons. Phenol sells at INR $200$ per kg, and its production cost is INR $50$ per kg. The sum of annual fixed ch...
soujanyareddy13
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soujanyareddy13
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Nov 16, 2020
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GATE CH 2021 | Question: 12
A feedforward controller can be used only if the disturbance variable can be measured the disturbance variable ... variable can be ignored regulatory control is not required
A feedforward controller can be used only ifthe disturbance variable can be measuredthe disturbance variable can be manipulatedthe disturbance variable can be ignoredregu...
go_editor
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go_editor
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Mar 1, 2021
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GATE CH 2023 | Question: 61
The outlet concentration $C_A$ of a plug flow reactor $\text{(PFR)}$ is controlled by manipulating the ... this system is______________ (rounded off to one decimal place).
The outlet concentration $C_A$ of a plug flow reactor $\text{(PFR)}$ is controlled by manipulating the inlet concentration $C_{A 0}$. The following transfer function desc...
admin
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admin
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May 21, 2023
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GATE CH 2023 | Question: 23
Spray dryers have many advantages. Which one of the following is NOT an advantage of a typical spray ... Has high heat efficiency Is suitable for heat sensitive materials
Spray dryers have many advantages. Which one of the following is NOT an advantage of a typical spray dryer?Has short drying timeProduces hollow spherical particlesHas hig...
admin
2.8k
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admin
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May 21, 2023
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GATE CH 2022 | Question: 28
A horizontal cylindrical water jet of diameter $D_{1} = 2\: cm$ ... is $30 \pi$ $10 \pi$ $20 \pi$ $5 \pi$
A horizontal cylindrical water jet of diameter $D_{1} = 2\: cm$ strikes a vertical solid plate with a hole of diameter $D_{2} = 1\:cm$, as shown in the figure. A part of ...
Arjun
4.7k
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Arjun
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Feb 15, 2022
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GATE CH 2023 | Question: 26
A packed distillation column, with vapor having an average molecular weight of $45 \mathrm{~kg} \cdot \mathrm{kmol}^{-1}$, density ... $4 \pi$ $\frac{10}{\sqrt{\pi}}$
A packed distillation column, with vapor having an average molecular weight of $45 \mathrm{~kg} \cdot \mathrm{kmol}^{-1}$, density of $2 \mathrm{~kg} \cdot \mathrm{m}^{-3...
admin
2.8k
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admin
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May 21, 2023
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GATE CH 2023 | Question: 40
Water in a container at $290 \mathrm{~K}$ is exposed to air containing $3 \% ~ \mathrm{CO}_2$ by volume. Air behaves like an ... $0.5 \times 10^{-4}$
Water in a container at $290 \mathrm{~K}$ is exposed to air containing $3 \% ~ \mathrm{CO}_2$ by volume. Air behaves like an ideal gas and is maintained at $100 ~ \mathrm...
admin
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admin
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May 21, 2023
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GATE Chemical 2020 | Question: 36
A student performs a flow experiment with Bingham Plastic under fully developed laminar flow conditions in a tube of radius $0.01 \: m$ with a pressure drop $(\Delta P)$ ...
soujanyareddy13
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