GATE 2022 BT – Previous Year Questions with Solutions
All 65 questions of GATE 2022 BT with answers and explanations. Read each question, then practise it by topic or as a full paper.
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- Question 1 – You should when to say .
- Question 2 – Two straight lines pass through (0,0) and respectively (1,3) and (1,2). What is the area enclosed between them for x[0,1]?
- Question 3 – If p:q=1:2, q:r=4:3, r:s=4:5 and u is 50% more than s, what is p:u?
- Question 4 – Given the statements: • P is the sister of Q. • Q is the husband of R. • R is the mother of S. • T is the husband of P. Based on the above…
- Question 5 – In the following diagram, the point R is the center of the circle. The lines PQ and ZV are tangential to the circle. The relation among the areas of…
- Question 6 – Healthy eating is a critical component of healthy aging. When should one start eating healthy? It turns out that it is never too early. For example,…
- Question 7 – P invests ₹5000 per month for 6 months and Q invests ₹x per month for 8 months. Profit follows total annual investment. Q receives 4/9 of the profit.…
- Question 8 – The above frequency chart shows the frequency distribution of marks obtained by a set of students in an exam. From the data presented above, which one…
- Question 9 – In the square grid shown on the left, a person standing at P2 position is required to move to P5 position. The only movement allowed for a step…
- Question 10 – Consider a cube made by folding a single sheet of paper of appropriate shape. The interior faces of the cube are all blank. However, the exterior…
- Question 11 – What is the order of the differential equation d2y/dx2-6x=3x4-2x3+2?
- Question 12 – If eigenvalues of a 22 matrix P are 4 and 2, the eigenvalues of P-1 are
- Question 13 – For a double-pipe heat exchanger, the inside and outside heat transfer coefficients are 100 and 200 W m-2 K-1, respectively. The thickness and thermal…
- Question 14 – Match the media component (Column I) with its role (Column II). Column I Column II --- --- P. Sucrose 1. Anti-foam agent Q. Zinc chloride 2. Nitrogen…
- Question 15 – The binding free energy of a ligand to its receptor protein is −11.5 kJ mol-1 at 300 K. What is the value of the equilibrium binding constant? Use R =…
- Question 16 – The overall stoichiometry is 3C 6H 12O 6+2.5NH 3+O 21.5C aH bO cN d+3CO 2+5H 2O. What is the biomass elemental formula?
- Question 17 – In binomial nomenclature, the name of a bacterial strain is written with the first letter of word(s) being capitalized.
- Question 18 – The type of nucleic acid present in λ−phage is
- Question 19 – Which of the following statements about reversible enzyme inhibitors are CORRECT? P. Uncompetitive inhibitors bind only to the enzyme-substrate…
- Question 20 – Match the component of eukaryotic cells (Column I) with its respective function (Column II). Column I Column II --- --- P. Lysosome 1. Digestion of…
- Question 21 – In animal cells, the endogenously produced miRNAs silence gene expression by
- Question 22 – Terpenoids are made of units
- Question 23 – Match the microbial product (Column I) with its respective application (Column II). Column I Column II --- --- P. Methane 1. Biosurfactant Q.…
- Question 24 – Which of the following is NOT used for generating an optimal alignment of two nucleotide sequences?
- Question 25 – The recognition sequences of four Type-II restriction enzymes (RE) are given below. The symbol (↓) indicates the cleavage site. Identify the RE that…
- Question 26 – Among individuals in a human population, minor variations exist in nucleotide sequences of chromosomes. These variations can lead to gain or loss of…
- Question 27 – Assuming independent assortment and no recombination, the number of different combinations of maternal and paternal chromosomes in gametes of an…
- Question 28 – A batch culture has apparent yield 0.5 g biomass/g substrate and initial biomass and glucose concentrations 2 g/L and 200 g/L. With no endogenous…
- Question 29 – The degree of reduction of lactic acid (C3H6O3) is .
- Question 30 – For x x+x-1=0, use Newton–Raphson with x 0=3. The value after one iteration (one decimal place) is .
- Question 31 – A random variable has density p(x)=2e-2x. The probability P(1 X2) (two decimal places) is .
- Question 32 – The maximum of f(x)=3x2-x3 for x>0 is .
- Question 33 – The specific growth rate of a yeast having a doubling time of 0.693 h (rounded off to nearest integer) is h-1.
- Question 34 – A broth has density 1000\ kg/m3 and viscosity 10-3\ kg\ m-1s-1. A 100 L fermenter uses a 0.1 m impeller at 2\ s-1. The impeller Reynolds number is .
- Question 35 – The melting-line slope at −2°C is -5.0665106\ Pa/K and liquid-minus-solid molar volume is -4.510-6\ m3/mol. The latent heat of fusion (J/mol, nearest…
- Question 36 – Which of the following conditions will contribute to the stability of a gene pool in a natural population? P. Large population Q. No net mutation R.…
- Question 37 – Match the media component used in mammalian cell culture (Column I) with its respective role (Column II). Column I Column II --- --- P. Hydrocortisone…
- Question 38 – Match the cell type (Column I) with its function (Column II). Column I Column II --- --- P. B cells 1. Humoral immunity Q. Neutrophils 2. Cytotoxicity…
- Question 39 – A 22 matrix P has eigenvalue 2 with eigenvector (1,0)T and eigenvalue 5 with eigenvector (1,1)T. What is P?
- Question 40 – Match the stationary phase (Column I) with its corresponding chromatography technique (Column II). Column I Column II --- --- P. Protein A 1. Size…
- Question 41 – Which of the following statements are CORRECT for a controller? P. In a proportional controller, a control action is proportional to the error Q. In…
- Question 42 – Which of the following are CORRECT about protein structure? P. Secondary structure is formed by a repeating pattern of interactions among the…
- Question 43 – The enzymes involved in ubiquitinylation of cell-cycle proteins are
- Question 44 – The maximum parsimony method is used to construct a phylogenetic tree for a set of sequences. Which one of the following statements about the method…
- Question 45 – Which of the following spectroscopic technique(s) can be used to identify all the functional groups of an antibiotic contaminant in food? P. Infrared…
- Question 46 – Adenine can undergo a spontaneous change to hypoxanthine in a cell, leading to a DNA base pair mismatch. The CORRECT combination of enzymes that are…
- Question 47 – For dy/dx=2x2-y2, y(1)=1. With implicit Euler y n+1=y n+hf(x n+1,y n+1) and h=0.5, the value(s) of y(1.5) is (are)
- Question 48 – Which of the following statements are CORRECT for an enzyme entrapped in a spherical particle?
- Question 49 – Which of the following is(are) COMMON feature(s) for both aerobic and anaerobic bacterial cultures?
- Question 50 – Which plots are correct for Michaelis–Menten kinetics at [S] K m, where S is substrate concentration and v 0 is initial reaction velocity?
- Question 51 – Which of the following statement(s) is(are) CORRECT regarding the lac operon in E. coli when grown in the presence of glucose and lactose?
- Question 52 – Emerging viruses such as SARS-CoV2 cause epidemics. Which of the following process(es) contribute to the rise of such viruses?
- Question 53 – Introduction of foreign genes into plant cells can be carried out using
- Question 54 – Which of the following statement(s) regarding trafficking in eukaryotic cells is(are) CORRECT?
- Question 55 – X has mean 0.1 and variance 0.2. If Y=2X+1, the variance of Y (one decimal place) is .
- Question 56 – For x 1,x 2>0, the value of x 1 x 2(x 1-x 2)/[x 2(x 1/x 2)] is .
- Question 57 – The diagram depicts production of B from A in a cell. Subscript i denotes intracellular metabolites and r j is flux in g/(g dry mass h). At…
- Question 58 – A batch ends with 50 g biomass. Fed-batch feeding is 1 L/h of 50 g/L substrate, with maximum yield 0.4 g/g. Under quasi-steady conditions, maximum…
- Question 59 – An enzyme converts A to B with -r A=C A/(5+C A) mol/(L min). Feed containing 10 mol/L A enters an ideal MFR at 10 L/min. Volume for 50% conversion is…
- Question 60 – Oxygen bulk and saturation concentrations are 10-4 and 10-3 mol/L, uptake is 910-4 mol/(L s), and interfacial area is 100\ m2/m3. The steady liquid…
- Question 61 – An insulated cylinder contains 1 mol ideal gas at 300 K. A weightless frictionless piston suddenly rises by 1 m against atmospheric pressure 1.013105…
- Question 62 – Aerobic yeast has growth rate 0.5\ h-1 and stoichiometry 2C 6H 12O 6+0.2NH 3+10.35O 2 CH 1.8O 0.5N 0.2+0.2C 2H 6O+10.6CO 2+10.8H 2O. Combustion heats…
- Question 63 – A 100 m³ medium initially contains 108 spores/mL. The accepted final contamination is one spore in the vessel and death constant is 2\ min-1 at 121°C.…
- Question 64 – A circular plasmid has three different but unique restriction sites for enzymes ‘a’, ‘b’ and ‘c.’ When enzymes ‘a’ and ‘b’ are used together, two…
- Question 65 – An aerobic bacterial culture at 37°C starts with 102 cells and reaches 105 after 10 h. The doubling time (nearest integer h) is .