MCQOPTIONS
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MCQOPTIONS
This section includes 157 Mcqs, each offering curated multiple-choice questions to sharpen your Concrete Technology knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
WHAT_IS_THE_PERMISSIBLE_LIMITS_FOR_CONSTRUCTION_OF_INORGANIC_MATTER_IN_WATER.?$ |
| A. | 200mg/l |
| B. | 2000mg/l |
| C. | 3000mg/l |
| D. | 500mg/l |
| Answer» D. 500mg/l | |
| 152. |
What is the permissible limits for construction of organic matter in water? |
| A. | 200mg/l |
| B. | 2000mg/l |
| C. | 3000mg/l |
| D. | 500mg/l |
| Answer» B. 2000mg/l | |
| 153. |
To neutralize 200 ml sample of water should not require more than _________ ml of 0.1 normal NaOH. |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 154. |
To neutralize 200 ml of sample should not require more than 10 ml of __________ normal HCI using methyl orange. |
| A. | 1 |
| B. | .1 |
| C. | 10 |
| D. | .01 |
| Answer» C. 10 | |
| 155. |
With regard to the curing water, identify the incorrect statement. |
| A. | Curing water shouldn’t produce objectionable stains on the surface |
| B. | The presence of tannic acid and iron compounds is objectionable |
| C. | Iron and organic matter are responsible for staining |
| D. | Water is suitable for mixing is also suitable for curing |
| Answer» D. Water is suitable for mixing is also suitable for curing | |
| 156. |
The vegetable oil if present in mixing for concrete |
| A. | Improves strength |
| B. | Reduces strength |
| C. | Gives more slump |
| D. | Gives a smooth surface |
| Answer» C. Gives more slump | |
| 157. |
Which of the following statement is incorrect for mixing water, |
| A. | Suspended particles of clay and slit < .02% |
| B. | The quality of CaCl<sub>2</sub> is restricted to 1.5% |
| C. | The pH value of water should be between 6-8 |
| D. | Free vegetable oil is beneficial |
| Answer» E. | |