HPCL Lab Analyst Model Question Paper on Polymers Foams and Adhesives

Rajasthan Polytechnic Third Year Paper 2016 – Polymers Foams and Adhesives

The tendency of dissimilar surfaces to cling to one another is
(a) Cohesion
(b) Adhesion
(c) Leveling
(d) Absorption

Adhesive joints are
(a) More directional
(b) Less directional
(c) Non directional
(d) None of these

An adhesive bonded joint exhibit atleast
(a) Five links
(b) Ten links
(c) Fifteen links
(d) Twenty links

Actual strength of an adhesive joint is the strength of
(a) Strongest link
(b) Weakest link
(c) Hard link
(d) Soft link

Which one is NOT a component of adhesive composition?
(a) Solvent
(b) Filler
(c) Thinner
(d) Glass

Adhesive joints are very good against forces like
(a) Shear
(b) Tension
(c) Peel
(d) Cleavage

Paper labels can be applied on cans by
(a) Riveting
(b) Welding
(c) Glueing
(d) Screwing

‘Weak boundary layer’ has been referred by
(a) Bikerman
(b) Leo Bakeland
(c) Carother
(d) Reinhart

Household adhesives should have
(a) Long storage stability
(b) Short storage stability
(c) Both
(d) None

Function of sealing adhesive is
(a) To close the joint
(b) To open the joint
(c) To hold adherends in high shear
(d) All of these