Temper brittleness of a material can be fairly detected by the ________ test?

Pitot tube measures the ________ of a fluid?

Resistance to heat flow by conduction is proportional to (where, t & ρ are thickness & density of the material respectively and A = area normal to the direction of heat flow.)?

Pick out the wrong statement?

Gross heating value of coal is ________ the net heating value?

Mixing of plastic solids is generally facilitated by________?