Chemical Engineering Basics MCQs

Evaporative cooling process employs a combination of cooling and humidification in which the

Difference at any instant between the value of the controlled variable and the set point is called the

A furnace is made of a refractory brick wall of thickness 0.5 metre and thermal conductivity 0.7 W/m.°K For the same temperature drop and heat loss, this refractory wall can be replaced by a layer of diatomaceous earth of thermal conductivity 0.14 W/m.K and thickness __________ metre.

Large scale fire on fuel gas line is normally extinguished by

Theoretical volume of oxygen required for complete combustion of 1 Nm3 of acetylene, in oxy-acetylene welding is __________ Nm3 .

Annealing of a material does not

Multistage compression is necessary for high efficiency,

__________ stress can not be sustained by a fluid in equilibrium.

Needles are produced by