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This section includes 65 Mcqs, each offering curated multiple-choice questions to sharpen your Applied Chemistry knowledge and support exam preparation. Choose a topic below to get started.
51. |
Addition polymerisation can be carried out in _________ mechanisms. |
A. | Two |
B. | Three |
C. | Four |
D. | Five |
Answer» C. Four | |
52. |
Blowing otherwise called as _________ |
A. | Air blow technique |
B. | Bubbling |
C. | Bubble casting |
D. | Bubble blowing |
Answer» D. Bubble blowing | |
53. |
The rubber coagulates into soft _________ colour mass. |
A. | Yellow |
B. | Light yellow |
C. | White |
D. | Light pink |
Answer» D. Light pink | |
54. |
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 | |
55. |
BUNA – N is a co-polymer of ___________ and __________ |
A. | Butadiene, acrylonitrile |
B. | Sodium poly sulphide, ethylene dichloride |
C. | Benzene, ethylene |
D. | Acetaldehyde, ethyl alcohol |
Answer» B. Sodium poly sulphide, ethylene dichloride | |
56. |
The heating and cooling of the thermo plastics _________the chemical nature. |
A. | Alters |
B. | Do not alters |
C. | Alters slightly |
D. | May be alters |
Answer» C. Alters slightly | |
57. |
Combination of the organic and inorganic polymers are called as _________ |
A. | Element organic polymers |
B. | Inorganic polymers |
C. | Fibres |
D. | Thermoplastics |
Answer» B. Inorganic polymers | |
58. |
Lubricants are used to prevent the moulded article from _________ |
A. | Rusting |
B. | Sticking |
C. | Not sticking |
D. | Burning |
Answer» C. Not sticking | |
59. |
The article in the transfer moulding are __________ |
A. | Cured very fast |
B. | Cured incompletely |
C. | Cured uniformly |
D. | Cured moderately |
Answer» D. Cured moderately | |
60. |
The thermo plastics resins are usually soluble in _________ |
A. | Organic solvents |
B. | Only in some organic solvents |
C. | Polar solvents |
D. | Only in water |
Answer» B. Only in some organic solvents | |
61. |
Thermo setting plastics are formed by_________ |
A. | Step polymerisation |
B. | Suspension polymerisation |
C. | Emulsion polymerisation |
D. | Co-ordination polymerisation |
Answer» B. Suspension polymerisation | |
62. |
In BUNA – S, the BU stands for ________ |
A. | Butadiene |
B. | Butane |
C. | Butaraldehyde |
D. | 3-Butanoic acid |
Answer» B. Butane | |
63. |
While producing the smoked rubber, the filtered latex is fed into long rectangular tanks of _________ deep. |
A. | 1m |
B. | 2m |
C. | 50cm |
D. | 30cm |
Answer» E. | |
64. |
Catering is done by the ________ |
A. | MATER BI |
B. | Teflon |
C. | Dacron |
D. | Poly lactic acid |
Answer» B. Teflon | |
65. |
The ionic mechanism again divided into _____________ |
A. | Two |
B. | Three |
C. | Four |
D. | Five |
Answer» B. Three | |