High temperature of around 2000°C of incandescent gas mantles is measured by a/an ________?
Correct answer
A. Radiation pyrometer
Explanation
The correct answer is Radiation pyrometer.
Correct answer
A. Radiation pyrometer
Explanation
The correct answer is Radiation pyrometer.
Experimental study of laminar fluid flow through a circular tube was conducted by________?
As per the world health organisation (WHO) specification, the maximum permissible concentration (i.e., TLV) of particulate matter in air is ________ μg/m3.(μg-microgram)?
Mass flow of granular solid (M) through a circular opening of dia, D follows________?
A body cools down from 75°C to 70°C in 10 minutes. It will cool down from 70° C to 65° C in ________ minutes?
For spheres, the surface shape factor is given by (where, A = area, V = volume, and D = diameter)?
For the irreversible reaction, Ca+ 2C = Ca C2, Δ H°298 = – 60000 J. mole-1. If a system initially containing 2 moles of calcium, 3 moles of carbon and 1 mole of calcium carbide is allowed to react to completion, the heat evolved at 298 K will be________?