9) A certain wire stretches 0.9 cm when outward forces with magnitude F are applied to each end. The same forces are applied to a wire of the same material but with three times the diameter and three times the length. The second wire stretches
Answer is:
0.30 cm
ISRO Technical Assistant Mechanical Question Paper - 2019 (Set-2) with Answer Key
For more MCQ's Click HereRelated ISRO Technical Assistant Mechanical Question Paper - 2019 (Set-2) with Answer Key
Answer is:
embeddability
Answer is:
Toughness
Explanation:
Toughness:
When a huge external force is applied on a metal, the metal will experience fracture. Toughness is the ability of a metal to resist fracture. The ability of a material to resist fracture due to high impact loads, is called toughness.
Hardness:
Hardness is the ability of a metal to resist permanent change of shape caused by an external force.
Strength:
When external forces are applied on a metal, breaking (brittle metal) or yielding (ductile metal) may occur. Strength is the property of a metal by which it resists external force without breaking or yielding.
