Relative density, or specific gravity, is the ratio of the density of a substance to the density of a given reference material. Specific gravity for liquids is nearly always measured with respect to water at its densest; for gases, air at room temperature is the reference.
Relative Density has no Units.
5) Which is the unit of relative density.
Answer is:
None of these
Explanation:
Related ISRO Technician-B Fitter Question Paper - 2012 (Set - 1) with Answer Key
Answer is:
It resist more compressive load
Explanation:
Cast iron is used to manufacture machine beds because it resist more compressive load and has good damping characteristics.
Answer is:
102 mm & 136 mm
Answer is:
Tungsten, Chromium, Vanadium
Explanation:
The main constituents of HSS are Tungsten, Chromium, Vanadium
Answer is:
Less
Explanation:
Elasticity of a material can be defined as the ability of a material to regain its original shape after an external force is applied on it. The ratio of stress applied on a body to the strain produced in it is defined as the Young’s modulus of that material.
Now, when we apply equal amounts of stress on steel and rubber having the same cross-sectional area, we notice that compared to steel, rubber gets stretched. The strain produced in rubber is much larger compared to that in steel. This means that steel has a larger value of Young’s modulus of elasticity and hence, steel has more elasticity than rubber.