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Chemical Engineering- CH 2013 GATE Paper (Practice Test) - GATE MCQ


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30 Questions MCQ Test - Chemical Engineering- CH 2013 GATE Paper (Practice Test)

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Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 1

Q. No. 1 – 5 Carry One Mark Each

Q.

If 3 X 5 and 8 Y 11 then which of the following options is TRUE?

Detailed Solution for Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 1

Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 2

The Headmaster to speak to you.
Which of the following options is incorrect to complete the above sentence?

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Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 3

Mahatama Gandhi was known for his humility as

Detailed Solution for Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 3

P and R are true

Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 4

"All engineering students" "should learn mechanics", "mathematics and" "how to do computation."
                I                                          II                                  III                              IV
Which of the above underlined parts of the sentence is not appropriate?

Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 5

Select the pair that best expresses a relationship similar to that expressed in the
pair:

water: pipe::

Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 6

Q. No. 6 – 10 Carry Two Marks Each

Q.

Velocity of an object fired directly in upward direction is given by V = 80 − 32 t,
where t (time) is in seconds. When will the velocity be between 32 m/sec and 64
m/sec?

Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 7

In a factory, two machines M1 and M2 manufacture 60% and 40% of the autocomponents respectively. Out of the total production, 2% of M1 and 3% of M2 are found to be defective. If a randomly drawn autocomponent from the combined lot is found defective, what is the probability that it was manufactured
by M2?

Detailed Solution for Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 7

Let E1 be the machine M1 manufacture auto companies
Let E2 be the event of machine M2 manufacture auto companies
Given P(E1 )= 60%  = 60/100

A randomly draw on auto component from the lot is sound defective the
probability it was manufactured by M2 is  P(E2 / A) we have

Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 8

Following table gives data on tourists from different countries visiting India in the
year 2011.

Which two countries contributed to the one third of the total number of tourists
who visited India in 2011?

Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 9

If |−2X + 9| = 3 then the possible value of |−X| − X2 would be:

Detailed Solution for Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 9

Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 10

All professors are researchers
Some scientists are professors
Which of the given conclusions is logically valid and is inferred from the above
arguments:

Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 11

Q. No. 11 – 25 Carry One Mark Each

Q.

The number of emails received on six consecutive days is 11, 9, 18, 18, 4 and 15,
respectively.

What are the median and the mode for these data?

Detailed Solution for Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 11

By arranging the data in ascending order, the data is 4, 9, 11, 15, 18, 18
Median  =(15+11)/2=13 
Mode=Maximum number of times occurred value =18

*Answer can only contain numeric values
Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 12

For two rolls of a fair die, the probability of getting a 4 in the first roll and a
number less than 4 in the second roll, up to 3 digits after the decimal point, is _______

 

Imp : you should answer only the numeric value


Detailed Solution for Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 12

We known that, if two dice are thrown then total number of out comes
=62=39
Let E be the event of getting 4 in the first roll and a number less than 4 is the
second.
Then favorable cases to occur E are 

(4,1) (4,2), (4,3)

Re quired probability =3/36=1/12 =0.0833

Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 13

Which of the following statements are TRUE?
P. The eigen values of a symmetric matrix are real
Q. The value of the determinant of an orthogonal matrix can only be +1
R. The transpose of a square matrix A has the same eigen values as those of A
S. The inverse of an ‘n × n’ matrix exists if and only if the rank is less than ‘n’

Detailed Solution for Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 13

P and R are true

Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 14

Evaluate

(Note: C is a constant of integration)

Detailed Solution for Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 14

*Answer can only contain numeric values
Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 15

A gaseous system contains H2, I2, and HI, which participate in the gas-phase
reaction

At a state of reaction equilibrium, the number of thermodynamic degrees of
freedom is

 

Imp : you should answer only the numeric value


Detailed Solution for Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 15

As we know F = C - P+ 2
Here C = 2, P = 1 so F= 2- 1+ 2
F = 3

Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 16

The thermodynamic state of a closed system containing a pure fluid changes from
(T1, p1) to (T2, p2), where T and p denote the temperature and pressure,
respectively. Let Q denote the heat absorbed (> 0 if absorbed by the system) and
W the work done (> 0 if done by the system). Neglect changes in kinetic and
potential energies. Which one of the following is CORRECT?

Detailed Solution for Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 16

C
Q −W = ΔU
ΔU which solely depends only on initial and final temperature. It is independent
of path.

Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 17

An equation of state is explicit in pressure p and cubic in the specific volume v. At
the critical point ‘c’, the isotherm passing through ‘c’ satisfies

Detailed Solution for Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 17

Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 18

The units of the isothermal compressibility are

Detailed Solution for Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 18

*Answer can only contain numeric values
Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 19

An open tank contains two immiscible liquids of densities (800 kg/m3 and 1000 kg/m3) as shown in the figure. If g = 10 m/s2, under static conditions, the gauge pressure at the bottom of the tank in Pa is _____________

 

Important : you should answer only the numeric value
 


Detailed Solution for Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 19

Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 20

The apparent viscosity of a fluid is given by  is the velocity gradient. The fluid is

Detailed Solution for Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 20

Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 21

The mass balance for a fluid with density (ρ) and velocity vector is 

Detailed Solution for Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 21

Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 22

An incompressible Newtonian fluid, filled in an annular gap between two concentric cylinders of radii R1 and R2 as shown in the figure, is flowing under steady state conditions. The outer cylinder is rotating with an angular velocity of ? while the inner cylinder is stationary. Given that ( R1-R2)  ? R1 the profile of the θ -component of the velocity Vθ can be approximated by,

Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 23

For a Newtonian fluid flowing in a circular pipe under steady state conditions in
fully developed laminar flow, the Fanning friction factor is

Detailed Solution for Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 23

Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 24

In the Tyler standard screen scale series, when the mesh number increases from
3 mesh to 10 mesh, then

Detailed Solution for Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 24

*Answer can only contain numeric values
Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 25

Taking the acceleration due to gravity to be 10 m/s2, the separation factor of a cyclone 0.5 m in diameter and having a tangential velocity of 20 m/s near the wall is_____

 

Important : you should answer only the numeric value


Detailed Solution for Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 25

Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 26

The effectiveness of a heat exchanger in the ε − NTU method is defined as

Detailed Solution for Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 26

Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 27

In a pool boiling experiment, the following phenomena were observed.
P. Natural convection
Q. Film boiling
R. Transition boiling
S. Nucleate boiling
What was the CORRECT sequence of their occurrence?

Detailed Solution for Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 27

Sequence is
(P) Natural convection    (S) Nucleate convection
(R) Transition boiling       (Q) Film boiling

*Answer can only contain numeric values
Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 28

A hole of area 1 cm2 is opened on the surface of a large spherical cavity whose inside temperature is maintained at 727 °C. The value of Stefan-Boltzmann constant is 5.67×10-8 W/m2-K4. Assuming black body radiation, the rate at which the energy is emitted (in W) by the cavity through the hole, up to 3 digits after the decimal point, is __________

Important : you should answer only the numeric value


Detailed Solution for Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 28

Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 29

The packing of an existing absorption tower is replaced with a new type of packing. The height of the packing and the inlet conditions are maintained the same as before. Tests reveal that the number of transfer units is lower than before. This indicates that the tower with the new packing, when compared to
that with the old packing, will

Detailed Solution for Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 29

Here NTU is lowered which suggests that new packing have a lower rate of
absorption of solute from the gas stream in comparison to old packing.

Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 30

A wet solid is dried over a long period of time by unsaturated air of nonzero constant relative humidity. The moisture content eventually attained by the solid is termed as the

Detailed Solution for Chemical Engineering- CH 2013 GATE Paper (Practice Test) - Question 30

Equilibrium moisture is attained by the solid after drying over a long period of
time.

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