104) By chemical kinetics which of the following can be predicted? I) Rate of a reaction, II) Feasibility of reaction, III) Rate constant of a reaction
Anonymous Quiz
12%
I only
40%
I &II
38%
I, II & III
10%
I &III
105) Sponge iron is called "Sponge" because of its............
Anonymous Quiz
17%
Light weight like a sponge
29%
compression like a sponge
39%
Porous nature like a sponge
15%
Yellow colour
106) Which of the following pair does not have same unit in SI?
Anonymous Quiz
23%
Molar Entropy Change: Universal Gas Consatnt (R)
26%
Gibbs free energy change(ΔG): Enthalpy Change(ΔH)
36%
Molar Entropy : Molar Heat capacity (Cp)
15%
Heat capacity : Enthalpy Change
107) Which of the following is not an Arc welding process? #GATE2022
Anonymous Quiz
18%
Electroslag Welding
29%
Tungsten Inert Gas(TIG) welding
24%
Submerged Arc Welding (SAW)
28%
Seam Welding
108) Which of the following pair is not TRUE? #GATE2022
Anonymous Quiz
5%
Bayer process: Purification of Bauxite ore
35%
Dow Process: Magsium recovery from sea water
46%
Converting: Coversion of Sulphide into copper oxide.
14%
KROLL's Process: Titanium sponge production
109) How many lattice paramaters are required to specify fully a Tetragonal crystal system? #GATE2022
Anonymous Quiz
6%
1
31%
2
35%
3
28%
4
110) What is/are the conditions to produce fine grain size in a material? I) Slow cooling. II) increasing nucleation rate. III) decreasing growth rate IV) decreasing nucleation rate. V) Fast cooling #GATE2022
Anonymous Quiz
22%
I & II
36%
II, III & IV
29%
II, III & V
14%
II &V
111) What is the aount of carbon in an eutectoid steel?
Anonymous Quiz
17%
<0.8 wt%
33%
>0.8 wt%
37%
0.8 wt%
13%
0.4 wt %
112) Which of the following statement is true for an isothermal process of an ideal gas?
Anonymous Quiz
13%
Internal energy decreases
21%
Internal energy increases
54%
Internal enrgy remains constant
13%
Internal energy may increase or decrease.
113) Wax pattern is used in which of the following Casting process?
Anonymous Quiz
11%
Shell Moluding process
24%
Die Casting
38%
CO2 moulding
28%
Investment Casting
114) Austempering Heat treatnment of steel produces which of the following microsturucture?
Anonymous Quiz
22%
Coarse Pearlite
32%
Fine Pearlite
33%
Bainite
13%
Martensite
115) Addition of which element in Grey Cast iron results in formation of SG iron?
Anonymous Quiz
19%
Silicon
28%
Sodium
35%
Chromium
18%
Magnesium
116) Rail tracks are produced by which of the following metal working operation?
Anonymous Quiz
23%
Forging
32%
Extrusion
28%
Drawing
17%
Rolling
Which of the foolowing statement related to Chemical kinetics is not TRUE? #GATE2022
Anonymous Quiz
26%
Rate of reaction of zero order reaction is not dependent on the concentration of reactants.
25%
Order of a chemical reaction is experimentally determined.
34%
Molecularity of a reaction will be zero
15%
Concntration Vs Time plot for a zero order reaction is a straight line & has negative slope.
118) Other than carbon which of the element in mild steel can causes the formation of upper&lower yiled point in stress-strain curve? #GATE2022
Anonymous Quiz
21%
Silicon
28%
Nitrogen
31%
Phosphorous
20%
Chromium
119) Which of the folowing pair of element & its mineral is wrong? #GATE2022
Anonymous Quiz
21%
Copper : Chalcocite
24%
Ilmenite: Titanium
28%
Magnesite : Iron
26%
Anglesite : Lead
120) The Poisson's ratio of steel is 0.33. Find the ratio of Elastic modulus (E) to Shear Modulus(G) for steel (upto two decimal)? #GATE2022
Anonymous Quiz
13%
0.38
48%
1.33
31%
2.66
9%
0.75
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121) For an adiabatic process which one is correct?
Anonymous Quiz
26%
Temperature remains constant
18%
Internal Energy remains constant
42%
No heat input or output from a system.Heat of the system remains constant
14%
Work done by the system is equal to change in internal Energy of the system.
122) Which of the following elements does not have BCC crystal structure?
Anonymous Quiz
6%
Vanadium
32%
Chromium
46%
Alpha Iron
15%
Silicon