Chemical Engineering Gate Yearwise 


Chemical Engineering Gate 2012 Questions with Answer

Ques 27 GATE 2012

The local velocity of a fluid along a streamline can be measured by

A

Pitot tube

B

Venturi meter

C

Rotameter

D

Orifice meter


(a) is the correct answer.

Ques 28 GATE 2012

For uniform laminar flow (in the x-direction) past a flat plate at high Reynolds number, the local boundary layer thickness (δ) varies with the distance along the plate (x) as

A

δ∝x1/4

B

δ∝x1/3

C

δ∝x1/2

D

δ∝x


(c) is the correct answer.

Ques 29 GATE 2012

A bed of spherical glass beads (density 3000 kg/m3, diameter 1 mm, bed porosity 0.5) is to be fluidized by a liquid of density 1000 kg/m3 and viscosity 0.1 Pa.s. Assume that the Reynolds number based on particle diameter is very small compared to one. If g=10 m/s2, then the minimum velocity (in m/s) required to fluidize the bed is

A

3.33×10-4

B

3.33×10-1

C

3

D

30


(a) is the correct answer.

Ques 30 GATE 2012

A Newtonian fluid of viscosity μ flows between two parallel plates due to the motion of the bottom plate (as shown below), which is moved with a velocity V. The top plate is stationary.

The steady, laminar velocity profile in the x-direction is

A

v[y/b]

B

v[(y/b)2-1]

C

V[1-(y/b)2]

D

V[1-y/b]


(d) is the correct answer.

Ques 31 GATE 2012

A Newtonian fluid of viscosity μ flows between two parallel plates due to the motion of the bottom plate (as shown below), which is moved with a velocity V. The top plate is stationary.

The force per unit area (in the x-direction) that must be exerted on the bottom plate to maintain the flow is

A

μV/b

B

-μV/b

C

2μV/b

D

-2μV/b


(a) is the correct answer.

Ques 32 GATE 2012

Which one of the following options is the closest in meaning to the word given below?
Mitigate

A

Diminish

B

Divulge

C

Dedicate

D

Denote


(a) is the correct answer.

Ques 33 GATE 2012

Choose the most appropriate alternative from the options given below to complete the following sentence:
Despite several _______ the mission succeeded in its attempt to resolve the conflict.

A

attempts

B

setbacks

C

meetings

D

delegations


(b) is the correct answer.

Ques 34 GATE 2012

The cost function for a product in a firm is given by 5q2, where q is the amount of production. The firm can sell the product at a market price of 50 per unit. The number of units to be produced by the firm such that the profit is maximized is

A

5

B

10

C

15

D

25


(a) is the correct answer.

Ques 35 GATE 2012

Choose the most appropriate alternative from the options given below to complete the following sentence:
Suresh's dog is the one _______ was hurt in the stampede.

A

that

B

which

C

who

D

whom


(a) is the correct answer.

Ques 36 GATE 2012

Choose the most appropriate alternative from the options given below to complete the following sentence:
Suresh's dog is the one _______ was hurt in the stampede.

A

that

B

which

C

who

D

whom


(a) is the correct answer.

Ques 37 GATE 2012

Choose the grammatically INCORRECT sentence:

A

They gave us the money back less the service charges of Three Hundred rupees.

B

This country's expenditure is not less than that of Bangladesh.

C

The committee initially asked for a funding of Fifty Lakh rupees, but later settled for a lesser sum.

D

This country's expenditure on educational reforms is very less.


(d) is the correct answer.

Ques 38 GATE 2012

An automobile plant contracted to buy shock absorbers from two suppliers X and Y. X supplies 60% and Y supplies 40% of the shock absorbers. All shock absorbers are subjected to a quality test. The ones that pass the quality test are considered reliable. Of X's shock absorbers, 96% are reliable. Of Y's shock absorbers, 72% are reliable. The probability that a randomly chosen shock absorber, which is found to be reliable, is made by Y is

A

0.288

B

0.334

C

0.667

D

0.720


(b) is the correct answer.

Ques 39 GATE 2012

A political party orders an arch for the entrance to the ground in which the annual convention is being held. The profile of the arch follows the equation y=2x-0.1x2 where y is the height of the arch in meters. The maximum possible height of the arch is

A

8 meters

B

10 meters

C

12 meters

D

14 meters


(b) is the correct answer.

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