Practice Test: Question Set - 01
1. Styrene butadiene rubber (SBR) is
- (A) A natural
rubber
- (B) Another
name of silicone rubber
- (C) A
synthetic polymer
- (D) A
synthetic monomer
2. Bakelite is
- (A) Same as
Polytetrafluoroethylene (PTFE)
- (B) An
inorganic polymer
- (C) Same
as thermoset phenol formaldehyde
- (D) Not
a polymer
3. Polyurethane cannot be used for making
- (A) Mattresses
& foam
- (B) Coating
material
- (C) Adhesives
- (D) Bottles
4. __________ resins are produced by the condensation polymerisation of formaldehyde with urea or melamine.
- (A) Epoxy
- (B) Amino
- (C) Alkyd
- (D) Phenolic
5. Nylon-6, 10 which is used for bristles making is superior to nylon 6, 6 due to its lower water absorption capacity, is a/an
- (A) Polyester
- (B) Polyamide
- (C) Polyisoprene
- (D) Polystyrene
6. Which of the following natural bio-polymers are formed as a result of polymerisation of amino-acids?
- (A) Starch
- (B) Cellulose
- (C) Proteins
- (D) Nucleic
acids
7. Which of the following is an inorganic polymer?
- (A) Teflon
- (B) Perspex
- (C) Silicones
- (D) Bakelite
8. Buna-S is a __________ material.
- (A) Fibrous
- (B) Plastic
- (C) Resinous
- (D) Rubbery
9. Epoxy resin is a polymer containing two or more groups of the bellow fig. is called epoxide group or ethoxyline group. It is a
- (A) Polyamide
& an elastomer
- (B) Good
adhesive
- (C) Surface
coating agent
- (D) Both (b) and
(c)
10. __________ practically possess no elasticity.
- (A) Vulcanite
or ebonite
- (B) Spandex
fibre
- (C) Polysulphide
rubber
- (D) Epoxy
resin
11. Which of the following has the weakest intermolecular forces?
- (A) Polyisoprene
- (B) Nylon-66
- (C) Polystyrene
- (D) Bakelite
12. Polystyrene is a __________ plastic at room temperature.
- (A) Ductile
- (B) Brittle
- (C) Malleable
- (D) None of
these
13. Transistor parts and refrigerator components are normally made of
- (A) Polystyrene
- (B) Polyester
- (C) High
density polythene
- (D) Polyurethane
14. Condensation polymerisation of __________ produces Bakelite.
- (A) Propylene
- (B) Phenol
& formaldehyde
- (C) Phenol
& acetaldehyde
- (D) Urea
& formaldehyde
15. Silicone resins, which are highly water repellent and has good heat resistance cannot be used
- (A) As
room temperature adhesive
- (B) As
grease & lubricant
- (C) Hydraulic
fluid for heat transfer
- (D) Resin
for lamination