182) What are the percentage of ferrite and cementite in 0.8%C steel just below the eutectoid temperature?
Anonymous Quiz
19%
12% ferrite + 88% cementite
40%
88% ferrite + 12% cementite
32%
80% cementite + 20%ferrite
9%
80% ferrite + 20% cementite
183) For which of the following steel full annealing is not applied?
Anonymous Quiz
18%
Hypo Eutectoid steel
28%
Eutectoid steel
39%
Hyper Eutectoid steel
15%
Low carbon steel
184) Crack propagation through the grains in poly crystalline samples is called........
Anonymous Quiz
19%
Shear fracture
30%
Intergranular fracture
38%
Fibrous fracture
13%
Transgranular fracture
185) Corrosion fatigue is the simultaneous action of.....
Anonymous Quiz
16%
high temperature and a cyclic load
36%
compressive stress and a corrosive environment
31%
cyclic stress and a corrosive environment
17%
tensile stress and a corrosive environment
186) The ability of a material to absorb energy in the elastic range is called........
Anonymous Quiz
16%
Hardness
29%
Strength
45%
Resilience
11%
Toughness
187) The strength of a material increases after strain hardening due to
Anonymous Quiz
15%
decrease in grain size
35%
increase in grain size
37%
increase in dislocation density
14%
decrease in dislocation density
188) Which metal working process is used for shaping flat sheets into cup shaped articles?
Anonymous Quiz
17%
rolling
30%
Deep drawing
38%
upset forging
14%
Stretch forming
189) Rat tail defect is found in which of the manufacturing process?
Anonymous Quiz
25%
Metal Working
35%
Foundry
32%
Powder Metallurgy
8%
Welding
190) Post emulsification technique is applicable only for which of the following NDT method? #GATE2022
Anonymous Quiz
15%
Dye penetrant inspection -
39%
Gamma ray radiography
33%
Magnetic particle inspection
13%
X-ray radiography -
191) Which of the following micro constituent is not found in steel?
Anonymous Quiz
14%
Pearlite
38%
Cementite
35%
Ledeburite
13%
Austenite
192) Internal defects in components cannot be detected by which of the following NDT method?
Anonymous Quiz
11%
Radiography testing
27%
Ultrasonic testing
40%
Magnetic Particle testing
22%
Acoustic emission test
193) The austenite phase get transformed to martensite phase in steels.What kind of transformation process it is?
I) Diffusion transformation II) Athermal transformation III) Isothermal IV) Diffusionless transformation. #GATE2022
I) Diffusion transformation II) Athermal transformation III) Isothermal IV) Diffusionless transformation. #GATE2022
Anonymous Quiz
9%
I & II
48%
I &III
37%
II & IV
6%
III & IV
194) The chief source of sulphur in blast furnace iron making is..........
Anonymous Quiz
16%
Iron ore
28%
Coke
42%
Limestone
13%
Sinter
195) The process of pouring molten steel into ingot moulds is called.........
Anonymous Quiz
17%
Tapping
21%
Teeming
33%
Charging
29%
Purging
196) Nickel is the constituent of which of the following alloy?
Anonymous Quiz
18%
Duralumin
49%
Bronz
24%
Monel metal
8%
Solder
197) A weldment consists of........
Anonymous Quiz
11%
Fused part of the weld
35%
Heat affected zone (HAZ)
32%
fused part and the HAZ
22%
Fused part+HAZ+ base metal
198) Sensitization is a common Phenomenon found in which of the following materials?
Anonymous Quiz
14%
Low carbon steel
34%
Stainless steel
32%
Ball bearing steel
19%
High carbon steel
199) The entropy becomes zero at 0degree Celsius for a.......... #GATE2022
Anonymous Quiz
22%
Perfect crystal
23%
Random solid solution
41%
Pure element
14%
None of these
200) The lattice parameter of an Aluminum unit cell is 4.05Å. Find the total volume of atoms( m^3) in an Aluminum unit cell upto two decimal. #GATE2022
Anonymous Quiz
27%
1.23× 10^-29
38%
4.52×10^-29
29%
2.26×10^-29
6%
4.92× 10^-29
201) Phase diagram of which of the following system has Temperature in y-axis and Pressure on x-axis?
Anonymous Quiz
10%
Unary system
35%
Binary system
33%
Ternary system
21%
Both option a & b