Chemical Engineering Basics

A. y2 = 2k1t + k2
B. y = k1 ln (k2t + k3)
C. y = k1 t + k2
D. y = k1t3 + k2

A. Machinability
B. Density
C. Strength
D. Plastic deformation

A. Convection heat transfer by stirring the fluid and cleaning the heating surface
B. Conduction heat transfer by reduction in the material thickness and increase in the thermal
conductivity
C. Radiation heat transfer by increasing the temperature and reducing the emissivity
D. None of these

A. pH value
B. Electrode potential
C. Colour intensity
D. None of these

A. 1.5
B. 3
C. 5
D. 7

A. Upward thrust due to air
B. Viscous force exerted by air
C. Surface tension effects of water
D. Force of gravity

A. Tungsten carbide
B. High carbon steel
C. High speed steel
D. Drilling

A. Dry air
B. Pure oxygen
C. Moisture
D. Sunlight

A. Increase the heat loss
B. Decrease heat loss and will have no effect beyond that
C. Decrease heat flux
D. Reduce convection heat loss compared to conduction heat less

A. Nitriding
B. Hot dipping
C. Electroplating
D. Both ‘B’ & ‘C’