MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Building Construction knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is not a property of plastics? |
| A. | Plastics are not ductile |
| B. | Plastics are organic in nature |
| C. | Plastics have good electric insulation properties. |
| D. | PVC plastics are inflammable |
| Answer» E. | |
| 2. |
Tributyl phosphate is an example of ___________ |
| A. | Hardener |
| B. | Pigment |
| C. | Plasticizer |
| D. | Filler |
| Answer» D. Filler | |
| 3. |
Hexamethylene tetramine serves as a hardener for ________ |
| A. | Cellulose |
| B. | Polystyrene |
| C. | Polyvinylchloride |
| D. | Phenol formaldehyde |
| Answer» E. | |
| 4. |
Homogeneous plastic is made of the chain containing only carbon atoms while heterogeneous plastic consists of the chain containing carbon and oxygen, nitrogen and other elements. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
Melamine is derived from ________ |
| A. | Silicon carbide |
| B. | Calcium silicate |
| C. | Calcium carbide |
| D. | Calcium sulphate |
| Answer» D. Calcium sulphate | |
| 6. |
Which of the following resins is obtained by the precipitation of milk with acids? |
| A. | Vinyl |
| B. | Casein |
| C. | Cellulose |
| D. | Alkyd |
| Answer» C. Cellulose | |
| 7. |
Which of the following statements about styrene is not true? |
| A. | Styrene is light in weight |
| B. | It has a low electrical resistance |
| C. | Water absorption of styrene is low |
| D. | Styrene is not easily attacked by chemicals |
| Answer» C. Water absorption of styrene is low | |
| 8. |
The components of alkyd are _______ |
| A. | Alcohol and phthalic acid |
| B. | Glycol and formic acid |
| C. | Glycerine and phthalic acid |
| D. | Glycerine and formic acid |
| Answer» D. Glycerine and formic acid | |
| 9. |
Which of the following resins is also known as acrylic? |
| A. | Methyl methacrylate |
| B. | Alkyd |
| C. | Styrene |
| D. | Vinyl |
| Answer» B. Alkyd | |
| 10. |
Which of the following is a thermoplastic resin? |
| A. | Casein |
| B. | Phenol formaldehyde |
| C. | Cellulose |
| D. | Urea-formaldehyde |
| Answer» D. Urea-formaldehyde | |
| 11. |
Which of the following types of plastics have a high modulus of elasticity? |
| A. | Rigid plastics |
| B. | Semi-rigid plastics |
| C. | Soft plastics |
| D. | Elastomers |
| Answer» B. Semi-rigid plastics | |
| 12. |
Which of the following statements about thermosetting plastics is not true? |
| A. | It is possible to change their shape on heating |
| B. | They are durable and strong |
| C. | They are available in a variety of colours |
| D. | They become rigid on heating |
| Answer» B. They are durable and strong | |
| 13. |
In addition polymerization, the molecular weight of the resulting polymer is the same as the sum of the molecular weights of the reacting molecules. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 14. |
Plastics are divided into thermoplastic and thermosetting on the basis of their ________ |
| A. | Behaviour with respect to heating |
| B. | Structure |
| C. | Physical properties |
| D. | Mechanical properties |
| Answer» B. Structure | |
| 15. |
Which of the following polymers is obtained by condensation polymerization? |
| A. | Polyethene |
| B. | Polystyrene |
| C. | Polyvinylchloride |
| D. | Carbamide |
| Answer» E. | |