Cement containing excess amount of lime
1). cracks during setting
2). becomes more strong
3). is slow setting
4). is quick setting
cracks during setting.
2. Taj Mahal is greatly affected due to :
3. Question 5.26:Explain the terms with suitable examples:(i) Alcosol (ii) Aerosol (iii) Hydrosol
4. Why does a cannon recoil after firing ?
5. Water is not effective in extinguishing a fire caused by petrol because
6. Which among the following is pure matter ?
7. Catalytic converters are generally made from :
8. Which one of the following is used as preservative for foodstuff ?