Related Questions

Super plasticizers reduce water requirement by ___________ %.
Proper amount of entrained air in concrete results in
(i) Better workability
(ii) Better resistance to freezing and thawing
(iii) Lesser workability
(iv) Less resistance to freezing and thawing
What is super plasticizers?
At constant workability, what is the reduction in mixing water?
What is the EMF of a galvanic cell if the standard reduction potential of the reduction half-reaction is -0.38 volts and the standard reduction potential of the oxidation half-reaction is 0.52 volts?
Following is the data for transmission system of a Gear box reduction ratios.
1st gear - 4.3 : 1
2nd gear - 3.00 : 1
3rd gear - 2.71 : 1
4th gear - 1 : 1
Final drive reduction is 5.0 : 1
The overall reduction when the vehicle is driven in 2nd gear is
Which of the following statements are true/false?
1. No person shall be allowed to work in a mine on more than six days in any one week.
2. No adult employed above ground in a mine shall be required or allowed to work for more than nine hours in any day.
3. A person will not work for more than five hours continuously before he has had an interval forrest of atleast half an hour.
4. No adult employed below ground in a mine shall be allowed to work for more than eight hours in any day.
Which of the following statements are true/false?
1. Every worker who has worked fora period of 240 days or more in a factory during a calendar year shall be allowed during the subsequent calendar year, leave with wages.
2. A worker who has been allowed leave for not less than four days, in the case of an adult, and five days, in the case of a child shall, before his leave begins, be paid the wages due for the period of the leave allowed.
3. If a worker works in a factory works for more than nine hours in any day or for more than 40 hours in any week, he shall, in respect of overtime work, be entitled to wagesat the rate oftwicehis ordinary rate of wages.4. The periods of work of an adult worker in a factory shall be so arranged that inclusive of his intervals for rest, they shall not spread over more than eleven and a half hours in any day.
Statement : The meteorological department has issued a notification forecasting less rainfall during next year's monsoon.

Courses of Action :
I. The government should immediately set up a water authority for proper management of water resources.
II. The water supply authorities should be asked to implement reduction in regular water supply to tackle the situation.
III. The farmers should be advised to cultivate alternate crops which require less water during the coming months.
What are Plasticizers?