For which of the following purposes is the instrument hydrometer used?

Options :
  1. For measuring sound under water
  2. To detect the presence of hydrogen in the atmosphere
  3. For measuring the specific gravity of liquids
  4. To detect the changes in atmospheric humidity
Answer and Explanation :-

Answer: Option 3


Sorry there is no explanation for this answer. Please help others by posting your response below

How do you rate this queston?  Very Easy  Easy  Average  Above Average  Tough

Previous Question : Which of the following measurements of length is equal to one micron?

Next Question : Among the following thermometers, the one that is used to indicate the lowest temperature is

Click here for online test on General Science


 (Getemail alerts when others member replies)

We lay there and looked up at the night sky and she told me about stars called blue squares and red swirls and I told her I'd never heard of them. Of course not, she said, the really important stuff they never tell you. You have to imagine it on your own.
-Brian Andreas