Engineering/Chemical Engineering Mcq Question Set 5 Sample Test,Sample questions

Question:
 A gas mixture input is given to a membrane with 20% O2 and 80% N2, the waste contains 60% of the input and the product contains 30% O2 and 70% N2, what are the number of moles of O2 in the waste?

1. 1

2.2

3.3

4.Can’t be determined


Question:
 In a batch process, 2 mole of SO2 and 3 mole of CO2 entered a vessel with some SO2, if 5 mole of product leaves the vessel, what is the percentage of SO2 in the product?

1.10%

2.20%

3.40%

4.50%


Question:
 In a batch process, 5 mole of H2 and 3 mole of CO2 entered a vessel with some CO2, if 10 mole of product leaves the vessel, what is the percentage of H2 in the product?

1.10%

2.30%

3.50%

4.80%


Question:
 Solution-1 containing 20% w1 and w2 at the rate 10 Kg/min combines with Solution-2 containing 10% w1, 20% w2 and w3 at the rate 20 Kg/min, the product formed contains and 10% w1, 30% w2 and 20% w3, what is the percentage of w2 in solution-1?

1. 5%

2.10%

3.25%

4.50%


Question:
 Solution-1 containing 30% acetic acid and 20% nitrogen at the rate F combines with Solution-2 containing 20% acetic acid and 10% nitrogen at the rate D and Solution-3 containing 10% acetic acid and 30% nitrogen at the rate N the product formed contains 20% acetic acid at the rate P, what is the percentage of nitrogen in product?

1.10%

2. 20%

3.30%

4.Cannot be determined


Question:
 Solution-1 containing 40% acetic acid and 20% carbon dioxide at the rate F combines with Solution-2 containing 20% acetic acid and 40% carbon dioxide at the rate D, the product formed contains 30% acetic acid at the rate P, what is the percentage of carbon dioxide in product?

1.10%

2. 20%

3. 30%

4.40%


Question:
 Tap filling a jar with water is an example of which of the following process?

1.Batch

2.Semi-batch

3.Neither of them

4.Batch & Semi-batch


Question:
 What is the final amount of fluid in the vessel if the system is in steady state?

1.Same as the initial amount

2. Twice the initial amount

3.Zero

4.None of the mentioned


Question:
10 Kg of oil is burnt in a container and taken off from the container if 1% of oil remains on the container wall, how much oil is taken off?

1.8.9 Kg

2.9 Kg

3.9.9 Kg

4.10 Kg


Question:
100 Kg mol of a gas mixture input is given to a membrane with 30% O2 and 70% N2, the waste contains 60% of the input and the product contains 10% O2 and 90% N2, what are the number of moles of O2 in the waste?

1.12

2.16

3.34

4.42


Question:
A batch process is that in which material enters the system and _____ which of the following should fill the gap?

1.Leaves

2.Does not leaves

3.Half of it leaves

4.None of the mentioned


Question:
A fluid enters a vessel at the rate of 10 liters/s, and leaves in two pathways one with 5 liters/s and other with 3 liters/s, then what type of flow it is?

1.Steady-state

2. Unsteady-state

3.Cannot say

4.None of the mentioned


Question:
A fluid enters a vessel at the rate of 10 liters/s, and leaves in two pathways one with 7 liters/s and other with 3 liters/s, then what type of flow it is?

1.Steady-state

2.Steady-state

3. Cannot say

4. none of the mentioned


Question:
A gas mixture input is given to a membrane with 40% O2 and 60% N2, the waste contains 80% of the input and the product contains 25% O2 and 75% N2, what is the percentage of O2 in the waste?

1.0.22

2.0.44

3.0.66

4.0.88


Question:
A liquid solid mixture with 10% solid and 90% liquid is input to a dryer, some of the liquid evaporated and the product contains 60% solid and 40% liquid, what is the ratio of an amount of water evaporated and amount of input?

1.2:1

2.3:2

3.5:4

4. 6:5


Question:
A liquid solid mixture with 20% solid and 80% liquid is input to a dryer, if the amount of evaporated water is 60% of the amount of input, what is the percentage of solid in the product?

1.40%

2.50%

3.80%

4. 90%


Question:
A reaction occurs in a vessel such that its mass does not change but its temperature is increased, then the system is which of the following?

1.Steady-state

2.Unsteady-state

3.Cannot say

4.None of the mentioned


Question:
A semi-batch process differs from a closed process in which of the following?

1.Input

2.Output

3.Generation

4.Consumption


Question:
A semi-batch process differs from an open process in which of the following?

1. Input

2.Output

3.Generation

4.Consumption


Question:
A semi-batch process is that in which material enters the system and _____ which of the following should fill the gap?

1. Leaves

2.Does not leaves

3.Half of it leaves

4.None of the mentioned


Question:
An aqueous solution with chlorine 30 g/L and an organic compound with no chlorine at the rate 50 L/min were put into an extraction machine and produced aqueous solution with chlorine 5 g/L and organic compound with chlorine 10 g/L, what is the rate of aqueous solution?

1.10 L/min

2.20 L/min

3.30 L/min

4.40 L/min


Question:
An aqueous solution with sulfur 10 g/L at the rate is 100 L/min and an organic compound with no sulfur at the rate 50 L/min were put into an extraction machine and produced an aqueous solution with sulfur 1 g/L, what is the amount of sulfur in the organic compound after extraction?

1.2 g/L

2.5 g/L

3.9 g/L

4.15 g/L


Question:
An unsteady state system, the flow in rate of A is 10 mole/s, what is the flow out rate of B if the accumulation was 10 mole in 2 seconds?

1.5 mole/s

2.10 mole/s

3.15 mole/s

4. 20 mole/s


Question:
An unsteady state system, the flow in rate of A is 5 mole/s, what is the flow out rate of B if the accumulation was 10 mole in 5 seconds?

1.1 mole/s

2. 2 mole/s

3. 3 mole/s

4. 5 mole/s


Question:
An unsteady state system, the flow in rate of A is 8 mole/s, what is the flow out rate of B if the accumulation was 6 mole in 2 seconds?

1.1 mole/s

2.2 mole/s

3. 3 mole/s

4.5 mole/s


Question:
An unsteady state system, the flow in the rate of A is 12 mole/s, what is the flow out rate of B if the accumulation was 18 mole in 3 seconds?

1.4 mole/s

2.6 mole/s

3. 8 mole/s

4.9 mole/s


Question:
An unsteady state system, the flow in the rate of A is 6 mole/s, what is the flow out rate of B if the accumulation was 18 mole in 9 seconds?

1.1 mole/s

2.2 mole/s

3.3 mole/s

4.4 mole/s


Question:
An unsteady-state system, with 10 liters as initial amount of water in the vessel, water flow in rate is 8 liters/ s and flow out rate is 5 liters/s, what will be the amount of water in the vessel after 10 seconds?

1.10 liters

2. 20 liters

3.30 liters

4.40 liters


Question:
An unsteady-state system, with 6 liters as initial amount of water in the vessel, water flow in rate is 2 liters/ s and flow out rate is 4 liters/s, what will be the amount of water in the vessel after 1 second?

1. 2 liters

2.4 liters

3. 6 liters

4.8 liters


Question:
CH4 at the rate 10 mole/min is reacted with O2 at the rate 10 mole/min, what is the rate of formation of CO2 in the product?

1.5 mole/min

2.10 mole/min

3.20 mole/min

4.40 mole/min


Question:
CH4 at the rate 10 mole/min is reacted with O2 at the rate 30 mole/min, what is the rate of formation of CO2 in the product?

1. 5 mole/min

2.10 mole/min

3.20 mole/min

4.40 mole/min


Question:
In a batch process, 40 mole of O2 and 30 mole of CO2 entered a vessel with some CO2, if 100 mole of product leaves the vessel, what is the percentage of O2 in the product?

1. 10%

2.40%

3. 60%

4.80%


Question:
In a batch process, 5 mole of SO2 and 3 mole of CO2 entered a vessel with some SO2, if 10 mole of product leaves the vessel, what is the percentage of SO2 in the product?

1. 10%

2.30%

3.50%

4.70%


Question:
In a batch process, 50 Kg of H2O and 40 Kg of CO2 entered a vessel with some H2O, if 100 Kg of product leaves the vessel, what is the percentage of H2O in the product?

1.10%

2.30%

3.60%

4.80%


Question:
In a batch process, 70 Kg of H2O and 10 Kg of NaOH and some other reactants enters the vessel, if 100 Kg of the product leaves the vessel, what is the percentage of H2O in the product?

1.10%

2.30%

3.70%

4.100%


Question:
In what ratio 57 octane and 63 octane should be mixed to obtain 59 octane?

1. 1:1

2. 2:1

3.3:1

4. 4:1


Question:
Solution-1 at the rate F combines with solution-2 at the rate D, their combination gives the product at the rate P, what is the equation of material balance?

1.F + D = P

2.F – P = D

3.D – F = P

4.None of the mentioned


Question:
Solution-1 containing 10% hydrochloric acid and 20% acetic acid at the rate F combines with Solution-2 containing 20% hydrochloric acid and 30% acetic acid at the rate D, the product formed contains 20% hydrochloric acid and 30% acetic acid at the rate P, how many independent equations containing F, D, and P are possible?

1.1

2.2

3.3

4.4


Question:
Solution-1 containing 10% nitric acid and 20% acetic acid at the rate F combines with Solution-2 containing 20% nitric acid and 10% acetic acid at the rate D, the product formed contains 30% nitric acid and 20% acetic acid at the rate P, how many independent equations containing F, D, and P are possible?

1.1

2.2

3.3

4.4


Question:
Solution-1 containing 10% nitric acid flowing at the rate 10 Kg/min combines with Solution-2 containing 40% nitric acid flowing at the rate 5 Kg/min, if their product contains 30% nitric acid, what is the flow rate of product?

1.10 Kg/min

2.20 Kg/min

3.30 Kg/min

4. 40 Kg/min


Question:
Solution-1 containing 30% acetic acid and 100% nitrogen at the rate 10 Kg/min combines with Solution-2 containing 20% acetic acid and 10% nitrogen at the rate 20 Kg/min and Solution-3 containing 10% acetic acid and 30% nitrogen at the rate 30 Kg/min the product formed contains 20% acetic acid, what is the percentage of nitrogen in product?

1.10%

2.20%

3.30%

4.Cannot be determined


Question:
Solution-1 containing 30% acetic acid and 20% nitrogen at the rate 10 Kg/min combines with Solution-2 containing 20% acetic acid and 10% nitrogen at the rate 20 Kg/min and Solution-3 containing 10% acetic acid and 30% nitrogen at the rate N the product formed contains 20% acetic acid at the rate P, what is the percentage of nitrogen in product?

1.10%

2.17.5%

3.25.5%

4.32.5%


Question:
Solution-1 containing 30% sulfuric acid flowing at the rate 10 Kg/min combines with Solution-2 containing 20% sulfuric acid flowing at the rate 5 Kg/min, if their product is out at the rate 20 Kg/min what is the percentage of sulfuric acid in the product?

1. 10%

2.20%

3.30%

4.40%


Question:
Solution-1 containing 40% nitric acid and 20% carbon dioxide at the rate F combines with Solution-2 containing 30% nitric acid and 40% carbon dioxide at the rate D, the product formed contains 30% nitric acid and 20% carbon dioxide at the rate P, If P = xF what is x?

1.1

2.2

3.3

4.4


Question:
The rate flow in and flow out in an unsteady state process are now increased by 10 Kg/s, which will be the change in accumulation?

1.0

2.5 Kg/s

3.10 Kg/s

4.20 Kg/s


Question:
Two reactants enter a vessel and a reaction is carried out, it is an example of which of the following?

1.Batch

2.Semi-batch

3.Neither of them

4.Batch & Semi-batch


Question:
Water boiling in a container is an example of which of the following?

1.Batch

2.Semi-batch

3.Neither of them

4.Batch & Semi-batch


Question:
Water flowing in plants from tap through a pipe, the process is an example of which of the following process?

1. Batch

2. Semi-batch

3.Neither of them

4. Batch & Semi-batch


Question:
What amount of 57 octane should be mixed with 3 liters of 63 octane to obtain 4 liters of 59 octane?

1.1 liter

2. 2 liters

3.2.5 liters

4.4.5 liters


Question:
Which of the following remains constant in the steady state system?

1.Mass

2.Energy

3.Momentum

4. Density


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