Engineering/Chemical Engineering Mcq Question Set 4 Sample Test,Sample questions

Question:
 A barometer has liquid-1 with density 1 Kg/m3 and height 10 cm below the outside level above that a liquid-2, if the gauge pressure of gas is 0.5 Pa, what is the pressure liquid-2?

1. 0.5 Pa

2.1 Pa

3.1.5 Pa

4. 2 Pa

Posted Date:-2022-03-11 07:03:22


Question:
 A country is an example of which of the following?

1.Closed System

2.Open System

3. Isolated System

4.None of the mentioned

Posted Date:-2022-03-11 07:33:23


Question:
 How is the boundary wall of a closed system?

1.Impermeable

2.Permeable

3.Rigid

4.None of the mentioned

Posted Date:-2022-03-11 07:30:17


Question:
 The equation of material balance, (Final condition + Sum of outputs) is equal to which of the following?

1.Initial condition – Sum of inputs

2. Initial condition + Sum of inputs

3. Sum of inputs – Initial condition

4.None of the mentioned

Posted Date:-2022-03-11 07:04:18


Question:
 The flow in rate of A and B are 4 mole/s and 8 mole/s respectively, which under goes reaction A + B -> 3C, what is the flow out rate of C?

1.4 mole/s

2.8 mole/s

3.12 mole/s

4.24 mole/s

Posted Date:-2022-03-11 07:40:17


Question:
 There were 10 moles of a substance present initially in a system, 5 moles were added to it and a reaction occurred so that its moles are reduced by 20%, what are the final moles of a substance in the system?

1. 10

2.12

3.15

4.18

Posted Date:-2022-03-11 07:07:33


Question:
 What is the accumulation in the system after 4 second if the out flow and in flow rates are 3 g/s and 8 g/s?

1.12 g

2. 20 g

3.32 g

4.40 g

Posted Date:-2022-03-11 07:37:23


Question:
10 moles of A were present in a system initially, and 10 moles are added to it, it follows the reaction 4A -> B, what are the number of moles of B produced?

1.5

2.10

3.15

4.20

Posted Date:-2022-03-11 07:06:51


Question:
10 moles of A were present in a system initially, and 10 moles of C are added to it, it follows the reaction 2A + C -> 5B, what is the number of moles of B produced?

1.5

2.10

3.25

4.50

Posted Date:-2022-03-11 07:07:13


Question:
10 moles of A were present in a system initially, and 12 moles of C are added to it, it undergoes the reaction 2A + 3C -> 2B, what are number of moles of B produced?

1. 4

2. 5

3.8

4.12

Posted Date:-2022-03-11 07:08:20


Question:
10 moles of A were present in a system initially, and 8 moles of C are added to it, it undergoes the reaction 5A + 3C -> 4B, what are number of moles of B produced?

1.4

2.6

3. 8

4.10

Posted Date:-2022-03-11 07:08:39


Question:
10 moles of O2 is added to 10 moles of H2, how many moles of H2O will it produce?

1.5

2. 10

3.15

4.20

Posted Date:-2022-03-11 07:05:00


Question:
8 moles of A were present in a system initially, and 24 moles of B are added to it, it undergoes the reaction 2A + 3B -> 4C + 5D, what are the number of moles of D produced?

1.10

2.20

3.30

4.40

Posted Date:-2022-03-11 07:09:00


Question:
A combustion reaction has reactants 1 mole of CxHy and 2 moles of O2 and products 1 mole of CO2 and 2 mole of H2O, what is x + y?

1.1

2.3

3.4

4. 5

Posted Date:-2022-03-11 07:05:23


Question:
A container has 10 grams of water 5 grams of water is added and 2 grams of water is taken out, what is the final amount of water?

1. 7 grams

2. 10 grams

3.13 grams

4.15 grams

Posted Date:-2022-03-11 07:04:38


Question:
A jar filled with water is an example of which of the following?

1.Closed System

2. Open System

3.Isolated System

4.None of the mentioned

Posted Date:-2022-03-11 07:31:37


Question:
A pressure cooker is an example of which of the following?

1.Closed System

2.Open System

3. Isolated System

4.None of the mentioned

Posted Date:-2022-03-11 07:33:03


Question:
A reaction has reactants 2 moles of NaOH and 1 mole of H2SO4, and products Na2SO4 and H2O, what are the total moles of products?

1.1

2.2

3.3

4. 4

Posted Date:-2022-03-11 07:06:06


Question:
A reaction is A + 2B -> 3C, if 2 moles of A and 4 moles of B entered the system, what are the number of moles of C formed?

1. 2

2.4

3. 6

4.8

Posted Date:-2022-03-11 07:06:32


Question:
A reactor has feed from 2 streams, one with rate 10 Kg/hr and other with 30 Kg/hr, and product side also has 2 streams one of which is at the rate of 15 Kg/hr, what is the rate of other product stream?

1.5 Kg/hr

2.15 Kg/hr

3. 25 Kg/hr

4. 35 Kg/hr

Posted Date:-2022-03-11 07:20:41


Question:
A reactor has feed of two streams, stream 1 has CO2 and H2O with mass fraction of 0.4 and 0.6 and rate 10 kg/hr, and stream 2 has CO2 and H2O with mass fraction 0.1 and 0.9 and rate 40 Kg/hr, what the mass fraction of CO2 in the product stream?

1. 0.08

2. 0.16

3.0.24

4. 0.32

Posted Date:-2022-03-11 07:20:11


Question:
A reactor has feed rate of 10 Kg/ hr and 5 Kg/hr and product rate of 9 Kg/hr, what is the efficiency of the reactor?

1.10%

2.30%

3.60%

4. 100%

Posted Date:-2022-03-11 07:22:16


Question:
A reactor has two feed streams with the ratio of their rate as 1:9 and has O2 and O3 with the mass fraction of 0.6 and 0.4 in stream 1 and 0.2 and 0.8 in stream 2, what is the mass fraction of O2 in the product side?

1.0.24

2.0.48

3.0.72

4.0.96

Posted Date:-2022-03-11 07:21:30


Question:
A reactor with efficiency 50%, has the feed CO2 and SO2 with mass fraction 0.4 and 0.6 with the rate 10 Kg/hr, what is the rate of CO2 in product side?

1.0.5 Kg/hr

2. 1 Kg/hr

3.1.5 Kg/hr

4.2 Kg/hr

Posted Date:-2022-03-11 07:21:54


Question:
An egg is an example of which of the following?

1.Closed System

2.Open System

3. Isolated System

4.None of the mentioned

Posted Date:-2022-03-11 07:34:13


Question:
Desert Cooler is an example of which of the following?

1.Closed System

2.Open System

3. Isolated System

4.None of the mentioned

Posted Date:-2022-03-11 07:31:02


Question:
Feed of a reactor has 0.25 mass fraction of H2O and 0.75 mass fraction of CO2 with rate 4 g/hr, if the product rate is 20 g/hr what is the mass of CO2 in the product side?

1.3 grams

2.9 grams

3.15 grams

4.21 grams

Posted Date:-2022-03-11 07:11:00


Question:
Feed of a reactor has 0.75 mass fraction of O2 and some SO2, if the product rate is 1000 Kg/hr then what is the rate of SO2 in the feed?

1.100 Kg/hr

2.250 Kg/hr

3.750 Kg/hr

4.1000 Kg/hr

Posted Date:-2022-03-11 07:21:03


Question:
In a random reaction 2 mole of CH4 and 1 mole of C2H4 are reacted, and 1 mole of C3H8 and 1 mole of CxHy are produced, what is x*y?

1.2

2. 4

3.8

4.12

Posted Date:-2022-03-11 07:05:46


Question:
In a system if, Accumulation = Generation – Consumption, where both the terms are distinct and non-zero, then the system is which of the following?

1.Steady-state

2.Closed

3.Non-reactive

4.None of the mentioned

Posted Date:-2022-03-11 07:47:35


Question:
In a system if, Accumulation = Input – Output + Generation – Consumption, where all the four terms are distinct and non-zero, then the system is which of the following?

1. Steady-state

2.Closed

3.Non-reactive

4.None of the mentioned

Posted Date:-2022-03-11 07:47:07


Question:
In a system if, Accumulation = Input – Output, where both the terms are distinct and non-zero, then the system is which of the following?

1.Steady-state

2.Closed

3.Non-reactive

4.None of the mentioned

Posted Date:-2022-03-11 07:48:19


Question:
The flow in rate of A and B are 5 mole/s and 10 mole/s respectively, which under goes reaction A + 2B -> 3C, what is the flow out rate of C?

1.5 mole/s

2.10 mole/s

3. 15 mole/s

4. 20 mole/s

Posted Date:-2022-03-11 07:39:54


Question:
The flow in rate of A and B are 8 mole/s and 10 mole/s respectively, which under goes reaction 4A + 5B -> 3C, what is the flow out rate of C?

1.4 mole/s

2.6 mole/s

3.8 mole/s

4.10 mole/s

Posted Date:-2022-03-11 07:40:40


Question:
The flow in rate of A is 5 mole/s, it undergoes a reaction A -> 2B, what are the moles of B that comes out after 5 seconds?

1. 5

2. 10

3.25

4.50

Posted Date:-2022-03-11 07:37:44


Question:
The flow in rate of A is 8 mole/s, it undergoes a reaction 3A -> B, what are the moles of B that comes out after 6 seconds?

1.5

2.8

3.10

4.16

Posted Date:-2022-03-11 07:38:11


Question:
The general material balance equation for reactive system is Accumulation = Input + Generation – x, what is x?

1.Consumption – Output

2.Consumption + Output

3.Output – Consumption

4. none of the mentioned

Posted Date:-2022-03-11 07:44:35


Question:
The general material balance equation for reactive system is Accumulation = Input + Generation – x, what is x?

1.Consumption – Output

2.Consumption + Output

3.Output – Consumption

4. none of the mentioned

Posted Date:-2022-03-11 07:46:43


Question:
The human body is an example of which of the following?

1.Closed System

2.Open System

3. Isolated System

4.None of the mentioned

Posted Date:-2022-03-11 07:34:35


Question:
The rate of flow in stream with 20% CH4 and 80% H2O is 5 mole/hr, the contained was initially filled with 3 mole of H2O, what will be the percentage of CH4 in product stream?

1.5

2.12.5

3. 25

4.37.5

Posted Date:-2022-03-11 07:23:59


Question:
The rate of flow in stream with 40% O2 and 60% CO2 is 10 mole/hr, the contained was initially filled with 6 mole of O2, what will be the percentage of O2 in product stream?

1.12.5

2.25

3. 50

4.62.5

Posted Date:-2022-03-11 07:25:52


Question:
The rate of flow in stream with 50% O2 and 50% CO2 is 10 mole/hr, the contained was initially filled with 10 mole of O2, what will be the percentage of O2 in product stream?

1.25

2. 50

3.75

4.100

Posted Date:-2022-03-11 07:26:12


Question:
The rate of flow in stream with 75% O2 and 25% CO2 is 20 mole/hr, the contained was initially filled with 5 mole of O2, what will be the percentage of O2 in product stream?

1. 20

2.40

3.60

4.80

Posted Date:-2022-03-11 07:26:34


Question:
There were 15 moles of a substance present initially in a system, 25 moles were added to it and a reaction occurred so that its moles are reduced by 50%, what are the final moles of a substance in the system?

1.10

2.15

3.20

4.40

Posted Date:-2022-03-11 07:07:59


Question:
Waste water flowing with TSS concentration 40 mg/L at the rate of 10 Liter/min is discharged into the river if the river is flowing at the rate of 15 Liter/min, what is the concentration of TSS in the river?

1. 10 mg/L

2.30 mg/L

3.45 mg/L

4.60 mg/L

Posted Date:-2022-03-11 07:22:44


Question:
Water flowing with chlorine concentration 10 mg/L at the rate of 20 Liter/min, is discharged into a river if the concentration of chlorine in a river is 5 mg/L what is the flow rate of river?

1.10 Liter/min

2. 20 Liter/min

3.30 Liter/min

4.40 Liter/min

Posted Date:-2022-03-11 07:23:03


Question:
Water flowing with TSS at the rate of 40 Liter/min, is discharged into a river flowing at the rate of 20 Liter/min, if the concentration of TSS in the river is 5 mg/L, what is the concentration of TSS in water?

1.5 mg/L

2. 10 mg/L

3.15 mg/L

4. 20 mg/L

Posted Date:-2022-03-11 07:23:23


Question:
What is the accumulation in the system after 10 second if the out flow and in flow rates are 10 g/s and 15 g/s?

1.5 g

2.10 g

3.50 g

4.100 g

Posted Date:-2022-03-11 07:35:19


Question:
Which of the following does the concept of material balance based upon?

1. Conservation of mass

2.Conservation of energy

3.Conservation of momentum

4.Conservation of Volume

Posted Date:-2022-03-11 07:03:52


Question:
Which of the following is constant in a closed system?

1. Energy

2.Mass

3. Temperature

4.Momentum

Posted Date:-2022-03-11 07:29:53


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