Chemical Engineering Basics MCQ Questions & Answers | Chemical Engineering

A. For a pressure vessel to be classified as 'thin vessel', the ratio of wall thickness to mean radius is less than 0.1

B. For calculating forces and efficiency of rivetted joint, either rivet diameter or rivet hole diameter is used in case of pressure vessel and in structural work

C. Longitudinal joint is normally made butt joint to maintain the circularity of the vessel

D. Maximum diameter of the opening provided in a pressure vessel, which does not require any compensation is 200 mm

A. Are magnetised by eddy currents only

B. Are non-magnetic and can not be magnetised

C. Are magnetised in direction opposite to the magnetic field

D. Can be magnetised in one direction only

A. 9100

B. 13000

C. 7000

D. 2550

A. SiO₂

B. FeO

C. MgO

D. CaO

A. Is an electrical insulating material

B. Of low resistivity is preferred

C. Should have high thermal conductivity

D. Need not defy the corrosive action of chemicals

A. Microspot

B. Under water

C. Precious metals

D. Heavy structure

A. Case hardening

B. Spheroidising

C. Normalising

D. Annealing

A. Ductile material

B. Hard materials

C. Brittle materials

D. Finishing cuts

A. Alphabetical letter

B. Rockwell hardness number

C. Brinell hardness number

D. None of these

A. Promotes graphite module formation

B. Improves its ductility

C. Does not promote graphite flakes formation

D. Increases the fluidity of molten metal