In an amorphous material, atoms defy any definite atomic structure and exist in random pattern just like in liquid. Which of the following is an amorphous material?

Characteristic curves for a centrifugal pump plotted against its capacity is shown in the diagram. x, y and z denote respectively________?

Hold up of material in a operating rotary drier is in the range of________?

P2O5 content in superphosphate is about ________ percent?

Which of the following thermocouples will give the highest output for the same value of hot and cold junction temperature?

Velocity of a gas in sound is not proportional to (where, T = Absolute temperature of the gas. P = Absolute pressure of the gas. y = Ratio of specific heats (Cp/Cv) ρ = specific weight of the gas)?