Disappearance of snow in subzero weather exemplifies the process of

If Michael can shovel all the snow of a standard driveway in 12 minutes, and Emon can shovel all the snow of a standard driveway in 36 minutes, then working together, how many minutes would it take for them both to shovel all the snow of a standard driveway?

A

5

B

9

C

15

D

18

Which of the following exemplifies resemblence with the extrusion process ?

A

Pneumatic ejection of abrasive solid particles through a nozzle

B

Toothpaste pouring out of the tube

C

Ejection of abrasive slurry through an opening

D

Viscous lubricant pouring out through its container's mouth

An approximately __________ process exemplifies the flow of a gas through a very long pipe of uniform cross-section.

A

Adiabatic

B

Isothermal

C

Isentropic

D

Isochoric

Sound waves propagation in air exemplifies an __________ process.

A

Adiabatic

B

Isothermal

C

Isometric

D

None of these

Which of the following exemplifies an adiabatic process?

A

Melting of ice

B

Condensation of alcohol vapor

C

Sudden bursting of a cycle tube

D

Evaporation of water

Removal of __________ exemplifies an adsorption unit operation.

A

Uranium from its ore

B

Water from petrol

C

Ammonia from coke oven gas

D

Mustard oil from mustard seed

Melting of ice exemplifies a/an

A

Adiabatic process

B

Endothermic reaction

C

Exothermic reaction

D

Process involving a chemical reaction

Color of brass changes from yellow to __________ after its dezincification which exemplifies selective leaching.

A

Grey

B

Red

C

Orange

D

Violet

Reaction of benzene with chlorine gas to produce tri-chlorobenzene exemplifies a/an __________ reaction.

A

Elementary

B

Parallel

C

Consecutive

D

None of these

Which of the following exemplifies a three dimensional fluid flow ?

A

Fluid flow at the inlet to a nozzle

B

Fluid flow between parallel plates

C

Viscous fluid flow between converging plates

D

None of these

Disappearance of snow in subzero weather exemplifies the process of

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