CPCL Junior Engineering Assistant IV Production (Chemical) Paper 2019

Chennai Petroleum Corporaton Limited Junior Engineering Assistant IV Production (Chemical) Paper 2019
Duration 120 minutes
No. of Questions – 120

The materials having same elastic properties in all directions are called
(a) Ideal materials
(b) Uniform materials
(c) Isotropic materials
(d) Practical materials

Modulus of rigidity is defined as the ratio of
(a) Longitudinal stress and logitudinal strain
(b) Volumetric stress and volumetric strain
(c) Lateral stress and lateral strain
(d) Shear stress and shear strain

The latent heat of steam at atmospheric pressure is _______
(a) 1535 kJ/kg
(b) 1875 kJ/kg
(c) 2257 kJ/kg
(d) 2685 kJ/kg

Carnot cycle consists of which four process?
(a) Two constant volume and two reversible adiabatic processes
(b) Two isothermal and two reversible adiabatic processes
(c) Two constant pressure and two reversible adiabatic processes
(d) One constant volume, one constant pressure and two reversible adiabatic processes

Lancashire boiler is
(a) Stationary fire tube boiler
(b) Internally fired boiler
(c) Horizontal boiler
(d) All of these

Weber number is the ratio of intertial force to ____ force
(a) Surface tension
(b) Gravity
(c) Viscous
(d) Elastic

The absorptivity of a grey body at a given temperature _________ with increasing wavelength of radiation
(a) increase
(b) decrease
(c) remains constant
(d) May increase or decrease; depends on the material

Streamline and equipotential lines in a flow field
(a) Are parallel to each other
(b) Are identical to each other
(c) Are perpendicular to each other
(d) intersect at acute angles

Which one of the following is pre hydrogenatin stage of oil?
(a) neutralization
(b) bleaching
(c) Deodorization
(d) All of the above

What are the method of obtaining oil from seed
(a) Expression
(b) Solvent extraction
(c) Both a and b
(d) None of the above