HPCL - Chemical Engineering placement paper

HPCL – Chemical Engineering placement paper

What is the percentage of carbon in mild steel?

a. 0.5%
b. 0.08 to 0.3%
c. 2.35%
d. 0.5 to 1.45

In a continuous crystalliser, the crystal size depends upon?

a. Degree of super saturation
b. Rate of heat transfer
c. Degree of turbulence
d. All of the above

The units on a p – v diagram’s area us associated with?

a. Momentum
b. Change in temperature
c. Energy
d. Temperature

Choose the correct option to identify the method used to synthesize a tri - block co – polymer.

a. Using a Ziegler Natta Catalyst
b. Free radical polymerization
c. Condensation polymerisation
d. Anionic polymerisation
e. By putting it into a bloody great pot and spitting on it to initiate polymerisation

What will be the molality of a solution containing 0.30kg mole of solute and 600 kg solvent?

a. 0.60
b. 2
c. 1
d. 0.50

Which vessels can handle dilute sulphuric acid?

a. Lead
b. Cast iron
c. Stainless steel
d. Brass

What will be the net change of internal energy when a system acted on by surroundings receives 50J of heat and 20J of work?

a. -30
b. 70
c. 0
d. 30

In problems of simultaneous heat and mass transfer, which of the following option plays an important role?

a. Schmidt number
b. Sherwood number
c. Lewis number
d. Prandtl number

Where can you apply Fourier’s law in heat transfer?

a. Conduction
b. Radiation
c. Convection
d. All of the above

How is Aluminium Conductor Steel Reinforced used?

a. Super conductors
b. Underground cables
c. Fuse
d. Overhead transmission lines

What product outcome will result if you combine Phenol and Formaldehyde?

a. Polyester
b. Teflon
c. PVC
d. Bakelite

Choose the correct option to select the process for melt blown process.

a. Preparation, extrusion, quenching, attenuation, lay – down, winding
b. Preparation, quenching, extrusion, attenuation, lay – down, winding
c. Preparation, extrusion, drawing, attenuation, lay – down, winding
d. Preparation, extrusion, quenching, lay – down, attenuation, winding