APPSC Inspector of Factories Chemical Engineering Paper 2008

Andhra Pradesh PSC Inspector of Factories Chemical Engineering Paper 2008

Continuity equation is based on
(a) Newton’s law of viscosity
(b) Newton’s law of cooling
(c) The law of conservation of mass
(d) Newton’s law of motion

The flow condition is identified by
(a) Froude number
(b) Prandtl number
(c) Reynolds number
(d) Weber number

Tooth paste is an example of a fluid that exhibits a behaviour of
(a) Pseudoplastics
(b) Bingham plastics
(c) Newtonian
(d) Dilatant

The equation valid for a fluid flow through packed bed for very large Reynolds numbers
(a) Fanning equation
(b) Blake-Plummer equation
(c) Kozeney-Carmen equation
(d) Hagen-Poiseuille equation

For crushing of solids the Rittinger’s law states that the work required for crushing is proportional to
(a) The size reduction ratio
(b) The new surface created
(c) The change in volume due to crushing
(d) The number of particles crushed

Variable area meter used for a flow measurement
(a) Orifice meter
(b) Rotameter
(c) Venturimeter
(d) Manometer

The ratio of internal force to gravity forced is called
(a) Reynolds number
(b) Schmidt number
(c) Froude number
(d) Weber number

If the average bed density at a given velocity is the same in all sections of the bed, then it is called
(a) Aggregative fluidization
(b) Particulate fluidization
(c) Minimum fluidization
(d) Bubbling fluidization

A high grade pulp for paper manufacture
(a) Rag pulp
(b) Sulphate pulp
(c) Sulfite pulp
(d) Mechanical pulp

Catalyst used in the catalytic cracking is
(a) Silica gel
(b) Silica-Alumina
(c) Vanadium pentoxide
(d) Nickel-Iron

Portland cement is primarily a mixture of
(a) Calcium, magnesium, oxychlorides
(b) Calcium aluminates and silicates
(c) Calcium and magnesium bicarbonates
(d) Gypsum and fly ash

The main difference between a paint and varnish is, varnish has no
(a) oil
(b) pigment
(c) drier
(d) resin