Chemical Engineering MCQs

Page No. 193

Osmotic pressure exerted by a solution prepared by dissolving one gram mole of a solute in 22.4 litres of a solvent at 0°C will be _______________ atmosphere?


a0.5

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b1

✓


c1.5

✖


d2

✖


View Answer 1

Which of the following two quantities when same, makes one pipe system equivalent to another pipe system ?


aHead & discharge

✓


bLength & discharge

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cLength & diameter

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dFriction factor & diameter

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View Answer Head & discharge

Choose the correct set of dimensions of viscosity that are equivalent (where, F, M, L, T are dimensions for force, mass, length and time respectively) ?


aFL-2T, ML-1T-1

✓


bFLT, ML-1T-1

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cML-1T-3, F-1L2T

✖


dF-1L2T-1, MLT-3

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View Answer FL-2T, ML-1T-1

A car tyre of volume 0.057 m3 is inflated to 300 kPa at 300 K. After the car is driven for 10 hours, the pressure in the tyre increases to 330 kPa. Assume air is an ideal gas and Cv for air is 21 J/mole.K. The change in the internal energy of air in the tyre in J/mole is__________________?


a380

✖


b630

✓


c760

✖


d880

✖


View Answer 630

Small pressure differences in liquids is measured using a/an__________________?


aU-tube manometer

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bInclined tube manometer

✓


cPitot tube

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dNone of these

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Two dimensional stream function________________?


aRelates velocity and pressure

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bIs constant along a stream line

✓


cIs constant along an equipotential surface

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dNone of these

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500 c.c. each of hydrogen at 700 mm Hg pressure and oxygen at 600 mm Hg pressure are put together in a vessel of 1 litre capacity. The final pressure of the gas mixture will be _____________ mm Hg?


a650

✓


b700

✖


c600

✖


d375

✖


View Answer 650

The pressure drop per unit length of pipe incurred by a fluid ‘X’ flowing through pipe is Δp. If another fluid ‘Y’ having both the specific gravity & density just double of that of fluid ‘X’, flows through the same pipe at the same flow rate/average velocity, then the pressure drop in this case will be__________________?


aΔp

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b2Δp

✓


cΔp2

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dΔp/2

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View Answer 2Δp

A gas at 0°C was subjected to constant pressure cooling until its volume became half the original volume. The temperature of the gas at this stage will be________________?


a0°C

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b0°K

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c-136.5°C

✓


d-136.5°K

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View Answer -136.5°C

Euler’s equation of motion is a statement expressing____________________?


aConservation of mass

✓


bConservation of energy

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cNewton’s first law of motion

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dNewton’s second law of motion

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View Answer Conservation of mass

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