Q.1
With an increase in strain rate, ductility ______ and tensile strength _____
  • a) Decreases, decreases
  • b) Decreases, increases
  • c) Increases, increases
  • d) Increases, decreases
Q.2
Largest size flaw can be determined using which of the following test?
  • a) Shore test
  • b) Brinell test
  • c) Leeb test
  • d) NDT
Q.3
Yield and flow strength at lower plastic strain is more dependent on _____ than ______
  • a) Strain rate, temperature
  • b) Temperature, tensile strength
  • c) Tensile strength, strain rate
  • d) Strain rate, tensile strength
Q.4
R-curve behaviour is a material related property.
  • a) False
  • b) True
Q.5
Which of the following machine is used to measure compressive strength?
  • a) Universal testing machine
  • b) Impact testing machine
  • c) Fatigue testing machine
  • d) Erichsen machine
Q.6
Which of the following instrument is used to measure formability?
  • a) Universal testing machine
  • b) Impact testing machine
  • c) Fatigue testing machine
  • d) Erichsen machine
Q.7
Which of the following device is used to measure hardness in Mohs?
  • a) Rockwell tester
  • b) Sclerometer
  • c) Universal testing machine
  • d) Gyro meter
Q.8
What is the cross-section of standard specimen for impact testing?
  • a) 10mm × 10mm
  • b) 20mm × 60mm
  • c) 10mm × 40mm
  • d) 45mm × 60mm
Q.9
Which of the following test is more preferred for testing hardness of electroplated surface?
  • a) Microhardness test
  • b) Dynamic hardness test
  • c) Macro hardness test
  • d) Scratch hardness test
Q.10
Which of the following is a drawback of ultrasonic testing?
  • a) Shape restriction
  • b) Low depth
  • c) Higher errors
  • d) High sensitivity
Q.11
Is ultrasonic testing is destructive testing?
  • a) False
  • b) True
Q.12
Which of the following factor affects ductile-brittle transition behavior the most?
  • a) Triaxiality
  • b) Notching
  • c) Temperature
  • d) Strain rate
Q.13
Which of the following material shows a gradual rising R-curve with failure governed by R-curve behaviour?
  • a) Low toughness and strength
  • b) High toughness and strength
  • c) Low toughness / strength
  • d) High toughness / low strength
Q.14
The slope of the stress-strain curve in the plastic range is _____
  • a) Bauschinger effect
  • b) Resolved shear stress
  • c) True strain
  • d) Rate of strain hardening
Q.15
At strain rates _____ behaviour of the material is characterized by creep.
  • a) High, 104 per second
  • b) High, 10-4 per second
  • c) Low, 104 per second
  • d) Low, 10-4 per second
Q.16
Radiography don’t give ________
  • a) Pores in weldment
  • b) Blow holes in casting
  • c) Hardness
  • d) Thickness of material
Q.17
ECI is only used for ferromagnetic materials.
  • a) False
  • b) True
Q.18
Standard penetration depth varies from material to material.
  • a) False
  • b) True
Q.19
Which of the following material can’t be tested by MPI?
  • a) Mg
  • b) Fe
  • c) Co
  • d) Ni
Q.20
What is the Curie point for most of the ferrous magnetic materials?
  • a) 460˚C
  • b) 760˚C
  • c) 240˚C
  • d) 557˚C
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