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This section includes 26 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Engineering knowledge and support exam preparation. Choose a topic below to get started.
1. |
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? |
A. | 20 |
B. | 40 |
C. | 60 |
D. | 80View answer |
Answer» E. | |
2. |
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? |
A. | 25 |
B. | 50 |
C. | 75 |
D. | 100View answer |
Answer» D. 100View answer | |
3. |
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? |
A. | 12.5 |
B. | 25 |
C. | 50 |
D. | 62.5View answer |
Answer» E. | |
4. |
The rate of flow in stream with 20% O2 and 80% CO2 is 5 mole/hr, the contained was initially filled with 3 mole of O2, what will be the percentage of O2 in product stream? |
A. | 12.5 |
B. | 25 |
C. | 37.5 |
D. | 50View answer |
Answer» E. | |
5. |
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? |
A. | 5 |
B. | 12.5 |
C. | 25 |
D. | 37.5View answer |
Answer» C. 25 | |
6. |
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? |
A. | 5 mg/L |
B. | 10 mg/L |
C. | 15 mg/L |
D. | 20 mg/LView answer |
Answer» C. 15 mg/L | |
7. |
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? |
A. | 0.5 Kg/hr |
B. | 1 Kg/hr |
C. | 1.5 Kg/hr |
D. | 2 Kg/hrView answer |
Answer» E. | |
8. |
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? |
A. | 0.24 |
B. | 0.48 |
C. | 0.72 |
D. | 0.96View answer |
Answer» B. 0.48 | |
9. |
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? |
A. | 100 Kg/hr |
B. | 250 Kg/hr |
C. | 750 Kg/hr |
D. | 1000 Kg/hrView answer |
Answer» C. 750 Kg/hr | |
10. |
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? |
A. | 0.08 |
B. | 0.16 |
C. | 0.24 |
D. | 0.32View answer |
Answer» C. 0.24 | |
11. |
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? |
A. | 3 grams |
B. | 9 grams |
C. | 15 grams |
D. | 21 gramsView answer |
Answer» D. 21 gramsView answer | |
12. |
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??$ |
A. | 5 mg/L |
B. | 10 mg/L |
C. | 15 mg/L |
D. | 20 mg/L |
Answer» C. 15 mg/L | |
13. |
The rate of flow in stream with 20% O2 and 80% CO2 is 5 mole/hr, the contained was initially filled with 3 mole of O2, what will be the percentage of O2 in product stream?$ |
A. | 12.5 |
B. | 25 |
C. | 37.5 |
D. | 50 |
Answer» E. | |
14. |
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?$ |
A. | 5 |
B. | 12.5 |
C. | 25 |
D. | 37.5 |
Answer» C. 25 | |
15. |
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? |
A. | 20 |
B. | 40 |
C. | 60 |
D. | 80 |
Answer» E. | |
16. |
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? |
A. | 25 |
B. | 50 |
C. | 75 |
D. | 100 |
Answer» D. 100 | |
17. |
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? |
A. | 12.5 |
B. | 25 |
C. | 50 |
D. | 62.5 |
Answer» E. | |
18. |
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? |
A. | 10 Liter/min |
B. | 20 Liter/min |
C. | 30 Liter/min |
D. | 40 Liter/min |
Answer» B. 20 Liter/min | |
19. |
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? |
A. | 10 mg/L |
B. | 30 mg/L |
C. | 45 mg/L |
D. | 60 mg/L |
Answer» E. | |
20. |
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? |
A. | 10% |
B. | 30% |
C. | 60% |
D. | 100% |
Answer» D. 100% | |
21. |
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? |
A. | 0.5 Kg/hr |
B. | 1 Kg/hr |
C. | 1.5 Kg/hr |
D. | 2 Kg/hr |
Answer» E. | |
22. |
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? |
A. | 0.24 |
B. | 0.48 |
C. | 0.72 |
D. | 0.96 |
Answer» B. 0.48 | |
23. |
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? |
A. | 100 Kg/hr |
B. | 250 Kg/hr |
C. | 750 Kg/hr |
D. | 1000 Kg/hr |
Answer» C. 750 Kg/hr | |
24. |
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? |
A. | 5 Kg/hr |
B. | 15 Kg/hr |
C. | 25 Kg/hr |
D. | 35 Kg/hr |
Answer» D. 35 Kg/hr | |
25. |
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? |
A. | 0.08 |
B. | 0.16 |
C. | 0.24 |
D. | 0.32 |
Answer» C. 0.24 | |
26. |
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? |
A. | 3 grams |
B. | 9 grams |
C. | 15 grams |
D. | 21 grams |
Answer» D. 21 grams | |