GATE XL format:nat PYQs & Answers — Page 25

Questions 241–244 of 244. Imported answers require independent review unless marked reviewed.

Topic practice 244 questionsPage 25 of 25

The Lineweaver-Burk plot of an enzymatic reaction shows V_max of 160 μmol/l.min and K_m of 60 μmol/l. For a substrate concentration of 40 μmol/l, the velocity of the reaction is estimated to be ____ μmol/l.min.

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A suspension containing 2 × 10⁴ spores of organism A having a D₁₂₁.₁°C value of 1.5 min and 8 × 10⁵ spores of organism B having a D₁₂₁.₁°C value of 0.8 min is heated at a constant temperature of 121.1 °C. The heating time needed to obtain a probability of spoilage ‘1 in 1000’ is ________ min.

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In an evaporation process, a compressor picks up 0.05 m³ air in each revolution and compresses 500 kg of air per minute. If the specific volume of air is 0.9 m³/kg, then the compressor speed is _________ rpm.

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For a soybean oil extraction system, solvent:soy ratio is maintained at 0.5:1 (w/w). Original seed contains 18% oil (w/w). If the meal (soy solid) after final desolventization has 0.01 kg oil per kg oil free meal, then the effectiveness of the solvent (kg oil/ kg solvent) in the extraction process is ________ .

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GATE XL format:nat PYQs

Question 112

Question 113

Question 114

Question 115