Multiple Choice Questions on Plastic Moulding
1- In which of the following plastic is used
(A) Automobiles
(B) Electrical appliances
(C) Packaging
(D) All of the above
2- Plastics can be shaped into
(A) Sheets
(B) Films
(C) Fibers
(D) All of the above
3- Plastics are principal ingredient of the following material(s)
(A) Paints
(B) Varnishes
(C) Adhesives
(D) All of the above
4- Which of the following plastics are made up of lines of long chain molecules?
(A) Thermoplastics
(B) Thermosetting plastics
(C) Both (A) and (B)
(D) None of the above
5- Credit cards are made of
(A) Polyethylene
(B) Polypropylene
(C) Polyvinyl chloride (PVC)
(D) Polystyrene
6- Milk and water bottles are made of
(A) Polyethylene
(B) Polypropylene
(C) Polyvinyl chloride (PVC)
(D) Polystyrene
7-Bottles for acidic foods like juices are made of
(A) PTFE (polytetrafluoroethylene)
(B) PET (polyethylene terephthalate)
(C) Polyamide (nylon)
(D) Acrylics (PMMA: polymethyl methacrylate)
8- Polyamide (nylon) is used for making
(A) Bearings
(B) Gears
(C) Textiles and fabrics
(D) All of the above
9- Which of the following plastics are made up of molecules that are heavily cross-linked?
(A) Thermoplastics
(B) Thermosetting plastics
(C) Both (A) and (B)
(D) None of the above
10- Which of the following plastics cannot be reshaped?
(A) Thermoplastics
(B) Thermosetting plastics
(C) Both (A) and (B)
(D) None of the above
11- Which of the following is an example of Thermosetting plastic?
(A) PVC
(B) Epoxies and Resins
(C) PET
(D) All of the above
12- Which of the following product(s) is (are) made by Compression moulding?
(A) Electric plugs
(B) Pot handles
(C) Dinnerware plates
(D) All of the above
13- There is no sprue and runner system in a
(A) compression mold
(B) injection mold
(C) extrusion mold
(D) all of the above
14- Which of the following is a type of Transfer Moulding?
(A) Pot transfer moulding
(B) Plunger transfer moulding
(C) Both (A) and (B)
(D) None of the above
ANSWERS:
1-(D), 2-(D), 3-(D), 4-(A), 5-(C), 6-(A), 7-(B), 8-(D), 9-(B), 10-(B), 11-(B), 12-(D), 13-(A), 14-(C)