elasticity

mcqspedia.com has 5 Question/Answers about Topic elasticity

Substances that elongate considerably and undergo plastic deformation before they break are known as

Substances that elongate considerably and undergo plastic deformation before they break are known as
  • A. brittle substances
  • B. breakable substances
  • C. ductile substances
  • D. elastic substances
  • Correct Answer: Option C

At ‘yield point’ of a copper wire

At ‘yield point’ of a copper wire
  • A. load hasn't exceeded elastic limit yet; so, Hooke's law applies
  • B. load has already exceeded elastic limit and material has become plastic
  • C. even plastic stage has passed and wire has snapped already
  • D. Like Brass and Bronze, Copper has no yield point
  • Correct Answer: Option B

Dimensions of strain are

Dimensions of strain are
  • A. [L]
  • B. None
  • C. None
  • D. It's a dimensionless quantity
  • Correct Answer: Option D

Hooke’s law states that

Hooke’s law states that
  • A. extension is proportional to load when elastic limit is not exceeded
  • B. extension is inversely proportional to load when elastic limit is not exceeded
  • C. extension is independent of load when elastic limit is not exceeded
  • D. load is dependent on extension
  • Correct Answer: Option A

Tensile strain is equal to

Tensile strain is equal to
  • A. Force per unit area
  • B. Force per unit volume
  • C. Extension per unit length
  • D. Force per unit length
  • Correct Answer: Option C