Explore topic-wise MCQs in Applied Chemistry.

This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Applied Chemistry knowledge and support exam preparation. Choose a topic below to get started.

1.

How many types of fabrication methods are there?

A. 4
B. 5
C. 6
D. 7
Answer» E.
2.

Compression moulding is applicable to ___________

A. Thermoplastic resins
B. Thermo setting resins
C. Both thermo plastic and thermo setting resins
D. Neither thermo plastics nor thermo setting resins
Answer» D. Neither thermo plastics nor thermo setting resins
3.

Which of the following is a stabilizer?

A. White lead
B. PbO
C. ZnO
D. Metallic oxides
Answer» B. PbO
4.

___________ is used to improve the thermal stability during polymerisation.

A. Accelerators
B. Colouring materials
C. Stabilizers
D. Lubricants
Answer» D. Lubricants
5.

Which of the following are not used lubricants?

A. Oils
B. Waxes
C. Oleates
D. Salts
Answer» E.
6.

Lubricants are used to prevent the moulded article from _________

A. Rusting
B. Sticking
C. Not sticking
D. Burning
Answer» C. Not sticking
7.

__________ prevent moulded article from sticking to the fabrication equipment.

A. Catalyst
B. Fillers
C. Lubricants
D. Stabilizers
Answer» D. Stabilizers
8.

Which of the following are used as the fillers?

A. Vegetable oils
B. Camphor
C. Ester of stearic acids
D. Wood flour
Answer» E.
9.

The percentage of the fillers is up to ___________ total moulding mixture.

A. 20%
B. 30%
C. 40%
D. 50%
Answer» E.
10.

__________ makes the polymers impermeable to x-rays.

A. Strontium salts
B. Ammonium salts
C. Calcium salts
D. Barium salts
Answer» E.
11.

Plasticizers ___________ the strength of the plastics.

A. Increase
B. Decrease
C. Do not affect
D. May increase above the room temperature
Answer» C. Do not affect
12.

Plasticizers are used to get the ___________ between the polymeric molecules.

A. Attraction
B. Freedom of movement
C. Pi-bond
D. Sigma bond
Answer» C. Pi-bond
13.

___________ increases the flexibility of the polymer.

A. Resins
B. Catalysts
C. Lubricants
D. Plasticizers
Answer» E.
14.

__________ acts as a binder in plastics.

A. Resins
B. Plasticizers
C. Lubricant
D. Accelerators
Answer» B. Plasticizers
15.

Usually the polymer resin is mixed with four to ten ingredients during the fabrication to impart useful properties to the finished articles. This is called mix.

A. True
B. False
Answer» B. False