cExams.net
Test # 154 [02-Dec-2016]


1.
In the recently hyped meeting held in Singapore IMF has raised the voting power of 4 middle income countries and there names are as follows: I China II Maxico III S.Korea IV Turky

Login/Register to access massive collection of FREE questions and answers.
Login/Register

Test Index
151 [29-Nov-2016] 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 [14-Dec-2016] 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 [29-Dec-2016] 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 [13-Jan-2017] 197 198 199 200

Hawaii is the only US state that grows cacao beans to produce chocolate.      .. More >>

Word of the Day


  • Rules to play Bobsleigh
  • Benefits of Cayenne
  • The Best Bulletproof Cars
  • Tips to succeed in Weight Loss
  • Benefits of Thyme
  • Mehandi Designs For Hands

  • Simple Science

    Camping Its Pleasures and its Dangers

    Pumps and their Value to Man:
    The allurement of a vacation camp in the heart of the woods is so great as to make many campers ignore the vital importance of securing a safe water supply. A river bank may be beautiful and teeming with diversions, but if the river is used as a source of drinking water, the results will almost always be fatal to some. The water can be boiled, it is true, but few campers are willing to forage for the additional wood needed for this apparently unnecessary requirement; then, too, boiled water does not cool readily in summer, and hence is disagreeable for drinking purposes.

    The only safe course is to abandon the river as a source of drinking water, and if a spring cannot be found, to drive a well. In many regions, especially in the neighborhood of streams, water can be found ten or fifteen feet below the surface. Water taken from such a depth has filtered through a bed of soil, and is fairly safe for any purpose. Of course the deeper the well, the safer will be the water. With the use of such a pump as will be described, campers can, without grave danger, throw dish water, etc., on the ground somewhat remote from the camp; this may not injure their drinking water because the liquids will slowly seep through the ground, and as they filter downward will lose their dangerous matter. All the water which reaches the well pipes will have filtered through the soil bed and therefore will probably be safe.

    But while the careless disposal of wastes may not spoil the drinking water (in the well to be described), other laws of health demand a thoughtful disposal of wastes. The malarial mosquito and the typhoid fly flourish in unhygienic quarters, and the only way to guard against their dangers is to allow them neither food nor breeding place.

    The burning of garbage, the discharge of waters into cesspools, or, in temporary camps, the discharge of wastes to distant points through the agency of a cheap sewage pipe will insure safety to campers, will lessen the trials of flies and mosquitoes, and will add but little to the expense.


    Chourishi Systems