Question

Q.5. Answer the following questions in 20 words. [1x10=10]

i. What is the 51 unit of force?

ii. Define ignition temperature of a substance.

iii. Define an alloy.

iv. Define tensile strength of a material.​

Answer 1

Explanation:

I.

51 Newton (N)=5.20055 Kilogram Force (kgf)

ii.The ignition temperature of a substance is the least temperature at which the substance starts combustion. ... Substances which spontaneously ignite in a normal atmosphere at naturally ambient temperatures are termed pyrophoric

iii.a metal made by combining two or more metallic elements, especially to give greater strength or resistance to corrosion.

iv.Tensile strength, maximum load that a material can support without fracture when being stretched, divided by the original cross-sectional area of the material.

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