Q6
MCQ • 2M
Verbal Aptitude
"Why do they pull down and do away with crooked streets, I wonder, which are my delight, and hurt no man living? Every day the wealthier nations are pulling down one or another in their capitals and their great towns: they do not know why they do it; neither do I. It ought to be enough, surely, to drive the great broad ways which commerce needs and which are the life -channels of a modern city, without destroying all history and all the humanity in between: the islands of the past." (From Hilaire Belloc's "The Crooked Streets") Based only on the information provided in the above passage, which one of the following statements is true?
Q7
MCQ • 2M
Analytical & Spatial Aptitude
Rohit goes to a restaurant for lunch at about 1 PM. When he enters the restaurant, he notices that the hour and minute hands on the wall clock are exactly coinciding. After about an hour, when he leaves the restaurant, he notices that the clock hands are again exactly coinciding. How much time ( in minutes) did Rohit spend at the restaurant?
Q29
NAT • 1M
Biomolecules, enzyme kinetics
For a mechanically reversible isobaric process taking place in a closed system involving 5 moles of an ideal gas, the temperature increases from an initial value of 300 K to a final value of 450 K. If the specific heat capacity at constant volume (Cv) is given as 12.5 J mol-1 K-1 and gas constant is 8.314 J mol-1 K-1, the amount of heat transferred to the system will be ______ J. (Round off to the nearest integer)
Q33
NAT • 1M
Biomolecules, enzyme kinetics
Consider a nonlinear algebraic equation, ex - 2 = 0. Using the Newton-Raphson method, with the initial guess of x0 = 1, the approximated value of the root of the equation after one iteration is________. (Round off to two decimal places)
Q36
MCQ • 2M
Bioreactor types, scale-up
Correctly match the Microorganisms with their respective Nutrition and energy requirement. Microorganisms Nutrition and energy requirement P. Photolithoautotrophs 1. Use organic compounds as a source of energy, hydrogen, electron and carbon Q. Chemoorganoheterotrophs 2. Use light energy and use CO2 as their carbon source R. Chemolithoautotrophs 3. Use light energy and use organic compounds as electron donor and carbon source S. Photoorganoheterotrophs 4. Oxidise reduced-inorganic molecules as energy and electron source but derive carbon from organic sources
Q38
MCQ • 2M
Mass transfer in bioprocesses (kLa)
An octapeptide composed of these L-amino acids - Lys, Thr, Ser, Met, Arg, Trp, Tyr, Glu - was subjected to analyses with the following outcomes: P. The N-terminal sequencing analysis by Sanger's method yielded 'Ser' at the N-terminus Q. Chymotrypsin treatment gave a pentapeptide, a 'Tyr' containing dipeptide and a free 'Glu' R. Cyanogen bromide treatment gave two tetrapeptides S. Trypsin treatment gave two tripeptides and a dipeptide Which one of the following is the correct octapeptide sequence?
Q46
MCQ • 2M
Biomolecules, enzyme kinetics
If the function f(x) = {sin 2x , for x > 0, a + bx, for x ≤ 0, where a and b are constants, is differentiable at x = 0, then a + b is equal to
Q57
NAT • 2M
Mass transfer in bioprocesses (kLa)
A binary mixture of benzene and toluene under vapour-liquid equilibrium at 80 C follows ideal Raoult's law. At this condition, the saturation pressures of benzene and toluene are 101 kPa and 40 kPa, respectively. If the mole fraction of benzene in the liquid phase is 0.6, the corresponding mole fraction of benzene in the vapour phase will be _______. (Round off to two decimal places)
Q58
NAT • 2M
Bioreactor types, scale-up
In a fermentation process, each mole of glucose is converted to biomass (CH1.8O0.5N0.2), with a biomass yield coefficient of 0.4 C-mol/C-mol, according to the unbalanced equation given below. C6H12O6 + NH3 + O2 → CH1.8O0.5N0.2 + CO2 + H2O The moles of oxygen consumption per mole of glucose consumed during fermentation is _________. (Round off to two decimal places)
Q61
NAT • 2M
Biomolecules, enzyme kinetics
A hot, freshly-sterilised fermentation medium is cooled in a double-pipe heat- exchanger. The medium enters the inner pipe of the exchanger at 95 C and leaves the exchanger at 40 C. Cooling water, flowing counter-currently to the medium, enters the annulus of the exchanger at 15 C and leaves the exchanger at 45 C. The overall heat transfer coefficient is 1350 W m-2 C-1. The rate of heat transfer per unit area will be _______ W/m2. (Round off to the nearest integer)