Chemical Engineering Basics

501. Production of one ton of paper in Indian paper industry consumes about __________ kWh of electricity.

1. 300
2. 800
3. 1400
4. 2000

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502. Projection welding & stud welding is categorised as the __________ welding.

1. Pressure
2. Thermit
3. Resistance
4. Arc

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503. Property responsible for the talcum powder to cling to the skin is the

1. Capillary action
2. Adhesion
3. Cohesion
4. Surface tension

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504. Propulsion of rocket follows from the

1. Newton's second law of motion
2. Newton's third law of motion
3. Law of projectiles
4. Archimedes principle

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505. Quartz is a __________ material.

1. Diamagnetic
2. Ferromagnetic
3. Ferroelectric
4. Piezoelectric

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506. Rain drops falling through atmospheric air attain limited terminal velocity, because of

1. Upward thrust due to air
2. Viscous force exerted by air
3. Surface tension effects of water
4. Force of gravity

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507. Rankine cycle comprises of two isothermal and two __________ processes.

1. Isobaric
2. Polytropic
3. Isentropic
4. None of these

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508. Recrystallisation temperature of steel is __________ °C.

1. 50
2. 300
3. 500
4. 800

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509. Reduction in the grain size reduces the __________ of the material.

1. Fatigue resistance
2. Tensile strength
3. Creep resistance
4. All (A), (B) & (C)

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510. Referring to the periodic table of elements, it is found that with increasing atomic number. The atomic size in the same

1. Period increases
2. Period decreases
3. Group increases
4. Both 'b' & 'c'

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