Chemical Engineering Basics

Question: Buoyancy force depends on the __________ the liquid.
[A].

depth of immersion in

[B].

displaced mass of

[C].

surface tension of

[D].

viscosity of

Answer: Option B

Explanation:

No answer description available for this question.

Question: __________ forces do not act in case of fluids.
[A].

Vibratory

[B].

Centrifugal

[C].

Elastic

[D].

Tensile

Answer: Option D

Explanation:

No answer description available for this question.

Question: A floating body oscillates about its __________ when it is displaced slightly.
[A].

centre of gravity

[B].

metacentre

[C].

centre of buoyancy

[D].

centre of pressure

Answer: Option B

Explanation:

No answer description available for this question.

Question: __________ fluid force is not considered in the Navier-Stokes equation.
[A].

Turbulent

[B].

Viscous

[C].

Gravity

[D].

Pressure

Answer: Option A

Explanation:

No answer description available for this question.

Question: A dummy activity is used in PERT network to describe the
[A].

precedence relationship.

[B].

resource idleness.

[C].

resource restriction.

[D].

necessary time delay.

Answer: Option A

Explanation:

No answer description available for this question.

Question: If the demand for an item is trebled and the order cost is reduced to one third, then the economic order quantity
[A].

is trebled.

[B].

remains unchanged.

[C].

decreases by a factor of 3.

[D].

decreases by a factor of 1/3.

Answer: Option B

Explanation:

No answer description available for this question.

Question: Auto collimator is used to check
[A].

flatness

[B].

angle

[C].

rotor balancing

[D].

roughness

Answer: Option B

Explanation:

No answer description available for this question.

Question: Heat dissipation in cooling towers is mainly by
[A].

conduction

[B].

convection

[C].

evaporation

[D].

radiation

Answer: Option C

Explanation:

No answer description available for this question.

Question: Calorific value of __________ are almost same.
[A].

lignite & anthracite coal

[B].

lignite & coal gas

[C].

petrol & diesel

[D].

coal gas & natural gas

Answer: Option C

Explanation:

No answer description available for this question.

Question: Air standard Otto cycle is more efficient than the diesel cycle for the same
[A].

heat addition & compression ratio.

[B].

heat addition & pressure.

[C].

compression ratio & pressure.

[D].

cylinder dimension & rpm.

Answer: Option A

Explanation:

No answer description available for this question.