Chemical Engineering Basics MCQs

Question 1

Out of the following, the most melleable material is

Accepted Answer

Lead

Answer

Copper

Answer

Aluminium

Answer

Wrought iron

Question 2

The noble metals

Accepted Answer

Are the lowermost in the electro-chemical series of metals

Answer

Are exemplified by Na, K and Li

Answer

Do not resist corrosion very strongly

Answer

None of these

Question 3

Filler material used in welding should have __________ as compared to the parent metal to be welded.

Accepted Answer

Both B & C

Answer

Lower melting temperature

Answer

Same melting temperature

Answer

Same composition

Question 4

The leaching solvent used in Baeyer's process for the purification of bauxite is

Accepted Answer

Sodium carbonate

Answer

Ammonium hydroxide

Answer

Sodium hydroxide

Answer

Ammonium carbonate

Question 5

The unit of gc is

Accepted Answer

lbm/lbf . ft/seC2

Answer

lbf/lbm . ft/seC2

Answer

lbm/lbf . seC2/ft

Answer

lbf/lbm . seC2/ft

Question 6

A thermally thin body is the one for which

Accepted Answer

Biot number is less than 0.1

Answer

Gallileo number is less than 0.1

Answer

Fourier number is less than 0.1

Answer

Fourier number is greater than 0.1

Question 7

Euler number is defined as the ratio of inertia force to __________ force.

Accepted Answer

Pressure

Answer

Elastic

Answer

Gravity

Answer

Viscous

Question 8

Existence of velocity potential implies that the fluid is

Accepted Answer

Irrotational

Answer

Ideal

Answer

Compressible

Answer

In continuum

Question 9

The property of material, by which a given amount of energy is absorbed by it without plastic deformation, is called the

Accepted Answer

Resilience

Answer

Toughness

Answer

Ductility

Answer

Impact strength