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WorksheetsPre-requisites Test
Total questions: 10
Worksheet time: 5mins
Pick out the correct conversion.
1 BTU = 453.6 calories
1 BTU = 252 calories
1 calorie = 252 BTU
1 calorie = 453.6 BTU
In a chemical process, the recycle stream is purged for
Increasing the product yield
Enriching the product.s
Limiting the inerts
Heat conservation
Which of the following ratios defines recycle ratio
Gross feed / recycle feed
Recycle feed / gross feed
Recycle feed/ fresh feed
Fresh feed / recycle feed
Number of gram moles of solute dissolved in 1 kg of solvent is called its ________
Normality
Molarity
Formality
Molality
What is the percentage of excess air, if 10 moles of air entered the process and only 5 moles of that are required?
10 %
50 %
70 %
100 %
10 moles of ethane is supplied with 49 moles of oxygen, what is the percentage of excess oxygen?
20 %
40 %
50 %
70 %
Find out the dimensionless quantity
Pressure
Reynolds number
Density
Viscosity
S.T.P. corresponds to
760 torr & 0°C.
760 mm Hg gauge pressure & 15.5°C.
1 atm. absolute pressure & 15.5°C.
101.325 kPa gauge pressure & 15.5°C.
What is the volume of 20 gm of Oxygen in Litre at standard conditions?
10
12
14
16
A cylinder contains 56 gm of N2, 128 gms of O2 and 64 gms of SO2. How many moles of N2 are there in the cylinder?
1
4
6
2
