52) Smelting Reduction in Extractive Metallurgy is a process in which............
Anonymous Quiz
19%
Only reduction takes place.
19%
Only melting takes place.
49%
Both reduction and melting take place
12%
Only oxidation takes place
53) In which of the following material metallic bond is not found?
Anonymous Quiz
8%
Steel
19%
Cast iron
27%
Aluminum
45%
Ceramic
54) Which of the following property is not a structure sensitive property of a material? #GATE 2022
Anonymous Quiz
20%
Yield stress
17%
Fracture Strength
35%
Elastic Constant
27%
Creep Strength
55) Sequence of reduction of iron oxides in the Blast Furnace is as follows........... #GATE 2022
Anonymous Quiz
14%
Hematite- Wustite-Magnetite-Iron
36%
Magnetite-Wustite-Hematite- Iron
43%
Hematite- Magnetite- Wustite- Iron
7%
Magnetite- Hematite- Wustite- Iron
56) Find the amount( in %) of total Ferrite in a 0.4 wt% carbon steel just below the eutectoid temperature. #GATE 2022
Anonymous Quiz
10%
51.61
43%
42.75
35%
48.39
11%
94.36
57) Which of the following metal oxide line is lowest in Ellingham Diagram?
Anonymous Quiz
22%
Magnesium (Mg)
33%
Silicon (Si)
25%
Aluminium (Al)
21%
Calcium (Ca)
58) Amorphous solids are those in which atoms or molecules are arranged ................
Anonymous Quiz
25%
In a very regular and orderly pattern in 3 dimension.
45%
In an irregular manner in 3 dimension
22%
In a regular manner in 2 dimension
8%
In a regular manner in 1 dimension
59) Which of following material has a well defined endurance limit in S-N curve? #GATE 2022
Anonymous Quiz
13%
Aluminum alloys
47%
Steel
32%
Copper alloys
8%
Magnesium alloys
60) During tensile testing, the localized reduction in cross sectional area at the UTS is called.........
Anonymous Quiz
20%
Elongation
21%
Dislocation
35%
Elastic deformation
24%
Necking
61) Which of the following is not a heat treatment process of steel?
Anonymous Quiz
16%
Austempering
22%
Martempering
38%
Aushardening
24%
Normalizing
62) Calcination, Roasting and Smelting Reduction are steps of which of the following Extractive Metallurgy process?
Anonymous Quiz
16%
Hydro Metallurgy
36%
Pyro Metallurgy
32%
Electro Metallurgy
16%
None of these
63) Constantan is an alloy of.......... and ...........
Anonymous Quiz
25%
Nickel and Chromium
41%
Copper and Nickel
22%
Aluminum and Copper
13%
Aluminum and Magnesium
64) In Cupola furnace.............is produced
Anonymous Quiz
22%
Wrought Iron
25%
Steel
42%
Cast Iron
11%
Stainless Steel
65) Presence of Sulphur in steel can cause............
Anonymous Quiz
16%
Cold shortness
27%
Hot Shortness
35%
Decrease in Machinability
23%
Both hot Shortness and Cold Shortness
66) Three closed container of same size contains of H2O. Container A is at -10 degree Celsius, container B is at 40 degree Celsius and container C is at 110 degree Celsius. Which of the container has highest value of Entropy?
#GATE 2022
#GATE 2022
Anonymous Quiz
13%
Container A
30%
Container B
40%
Container C
17%
All the containers have same Entropy
67) Which of the following property is an Extensive property of a system?
Anonymous Quiz
26%
Molar heat Capacity
27%
Pressure
38%
Density
10%
Heat Capacity
68) Which of the following Oxygen to Acetylene ratio represents the Oxidising flame in a gas welding process?
Anonymous Quiz
11%
1:1
42%
1.5:1
28%
1:1.5
19%
1:2
69) Which of the following allowance is not given to a pattern in Foundry?
Anonymous Quiz
17%
Finish allowance
20%
Draft allowance
39%
Pouring allowance
17%
Shake allowance
7%
Shrinkage allowance.
70) Brinell, Vickers and Rockwell Hardness Test are types of which type of Hardness measurement?
Anonymous Quiz
14%
Rebound Hardness
42%
Indentation Hardness
22%
Scratch Hardness
23%
Both option (a) and (b)
71) At room temperature in a 0.45 wt% carbon steel what are the microconstituents present?
Anonymous Quiz
13%
Ferrite +austenite
36%
Pearlite +proeutectoid ferrite
41%
Pearlite+ Proeutectoid cementite
10%
Pearlite+Asutenite
73) Which of the following is not a physical region or comoponents of a Blast Furnace in Iron Making?
Anonymous Quiz
16%
Upper Stack
45%
Tuyers
23%
Upper Bosh
16%
Throat