Mass Transfer Mock Test 9

10%

Question 1 of 10

1. Find the slope of the operating line for the first stage if the dilutant in the feed is 5 kg and the solvent used for the second stage is 10 kg.

0.5

Data inadequate

2.5

Question 1 of 10

Question 2 of 10

2. The removal of soluble materials from the solid is known as ________

None of the mentioned

Elution

Extraction

Decoction

Question 2 of 10

Question 3 of 10

3. Find the representation X.

All of the mentioned

Water vapour

Ice

Water

Question 3 of 10

Question 4 of 10

4. Find the region if the final and the initial moisture content are 40% and 30% (Dry basis) and the critical moisture content is 45%.

Falling rate

None of the mentioned

Internal movement

Constant rate

Question 4 of 10

Question 5 of 10

5. Find the moisture content in wet basis is the weight of the dry solid is 3 kg and the weight of the moisture is 2 kg.

0.35

0.4

0.2

0.3

Question 5 of 10

Question 6 of 10

6. Leaching is generally used for cement industries

False

True

Question 6 of 10

Question 7 of 10

7. If the solvent viscosity is low and temperature of the solvent is high then the leaching rate decreases.

True

False

Question 7 of 10

Question 8 of 10

8. The representation AB is known as

Bound moisture

None of the mentioned

Equilibrium moisture

Unbound moisture

Question 8 of 10

Question 9 of 10

9. Find the equilibrium content value

Question 9 of 10

Question 10 of 10

10. For the free convection circumstances, the following dimensionless numbers apply
(i) Grashof number
(ii) Prandtl number
(iii) Nusselt number
Identify the correct answer

i, ii and iii

ii only

ii and iii

i and ii

Question 10 of 10