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GATE 2020: Manufacturing Quiz 13 (App update required to attempt this test)
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Question 1
A material is said to be“even material”, if material
Question 2
An engineering material property is defined as “the capacity of retaining the deformation produced with the application of load permanently”. The property described is ______.
Question 3
A 10 mm diameter Brinell ball produce an indentation of diameter 1.64 mm in a steel alloy when a load of 500 kg is used. BHN will be ___________ kg/mm2.
Question 4
Consider the following statements regarding “Whiskers”:
Statement 1: Whiskers are drawn from a single crystal in a preferred direction.
Statement 2:Whiskers are free from mobile dislocations or contain very few dislocations to cause any plastic deformation.
Statement 3: Behavior of Whiskers are inelastic.
Statement 4: Iron Whiskers can sustain 5% strain without permanent deformation.
Which of the above statements are true?
Statement 1: Whiskers are drawn from a single crystal in a preferred direction.
Statement 2:Whiskers are free from mobile dislocations or contain very few dislocations to cause any plastic deformation.
Statement 3: Behavior of Whiskers are inelastic.
Statement 4: Iron Whiskers can sustain 5% strain without permanent deformation.
Which of the above statements are true?
Question 5
The following data are collected during a tensile test in which
The starting gage length =125.0 mm
The cross- sectional area = 62.5 mm2:
Load (N) 0 17,793 23,042 27,579 28,913 27,578 20,462
Length (mm) 0 ,125.23, 131.25, 140.05, 147.01, 153.00, 160.10
The maximum load is 28,913 N and the final data point occurred immediately prior to failure.
Determine modulus of elasticity E.
The starting gage length =125.0 mm
The cross- sectional area = 62.5 mm2:
Load (N) 0 17,793 23,042 27,579 28,913 27,578 20,462
Length (mm) 0 ,125.23, 131.25, 140.05, 147.01, 153.00, 160.10
The maximum load is 28,913 N and the final data point occurred immediately prior to failure.
Determine modulus of elasticity E.
Question 6
A perfect crystal structure crystallizes in FCC crystal structure. If a particular plane consists of 2 number of atoms. Find the planar density (atoms/nm2) of the structure having for the same plane if side length is 4 nm.
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ESE & GATE MEGeneralApr 28ESE & GATE ME