MCQOPTIONS
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MCQOPTIONS
This section includes 13 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 true about fibreglass? |
| A. | Fibreglass is soft to touch |
| B. | Fibreglass is flexible |
| C. | Fibreglass readily absorbs water |
| D. | Fibreglass is fire-proof |
| Answer» D. Fibreglass is fire-proof | |
| 2. |
Alternate layers of ________ plastic is present in bullet-proof glass. |
| A. | Styrene |
| B. | Vinyl-resin |
| C. | Methyl methacrylate |
| D. | Alkyd |
| Answer» C. Methyl methacrylate | |
| 3. |
Which of the following is added to the glass in order to make its colour green? |
| A. | Cobalt oxide |
| B. | Magnesium dioxide |
| C. | Sodium oxide |
| D. | Chromium sesquioxide |
| Answer» E. | |
| 4. |
Which of the following is added to the glass in order to make its colour violet? |
| A. | Ferric oxide |
| B. | Manganese dioxide |
| C. | Tin oxide |
| D. | Copper oxide |
| Answer» C. Tin oxide | |
| 5. |
In the silvering of glass, a thin coat of ______ is first applied on which silver is then deposited. |
| A. | Tin |
| B. | Zinc |
| C. | Iron |
| D. | Copper |
| Answer» B. Zinc | |
| 6. |
Glass can be made opaque by grinding the surface of the glass with _________ |
| A. | Mortar |
| B. | Flint |
| C. | Alcohol |
| D. | Emery |
| Answer» E. | |
| 7. |
The process of slow and gradual cooling of glass articles is known as _________ |
| A. | Pressing |
| B. | Rolling |
| C. | Annealing |
| D. | Spinning |
| Answer» D. Spinning | |
| 8. |
Which of the following substances is not used as a decolorizer in the manufacturing of glass? |
| A. | Potassium carbonate |
| B. | Antimony oxide |
| C. | Cobalt oxide |
| D. | Manganese dioxide |
| Answer» B. Antimony oxide | |
| 9. |
Ferric oxide gives a very light yellow tint to the glass while ferrous oxide imparts a green colour. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
Common glass is mainly a mixture of ___________ |
| A. | Calcium silicate, potassium silicate and copper silicate |
| B. | Sodium silicate, iron silicate and calcium silicate |
| C. | Aluminium silicate, potassium silicate and iron silicate |
| D. | Magnesium silicate, potassium silicate and zinc silicate |
| Answer» C. Aluminium silicate, potassium silicate and iron silicate | |
| 11. |
_______ is used to indicate pieces of broken glass or waste glass. |
| A. | Sodium bicarbonate |
| B. | Cullet |
| C. | Decolorizer |
| D. | Sand |
| Answer» C. Decolorizer | |
| 12. |
Which of the following is a raw material for common glass? |
| A. | Lead dioxide |
| B. | Potassium bicarbonate |
| C. | Salt cake |
| D. | Litharge |
| Answer» D. Litharge | |
| 13. |
Litharge is _________ |
| A. | Lead trioxide |
| B. | Lead sesquioxide |
| C. | Lead dioxide |
| D. | Lead monoxide |
| Answer» E. | |