1. A _______ measures the pressure in terms of the difference in fluid levels between the vertical arms of a glass U-tube.   Barometer   Hydrometer   Sphygmomanometer   Manometer   Hint Half-n-half Clue   2. If the average atmospheric pressure at sea level can support 10.34 m of vertical length of a water column, then its magnitude is about _______ Pa. Assume density of water = 1 g cm−3 and gravitational acceleration = 9.8 m s−2.   100   1000   10000   100000   Half-n-half Clue   3. To measure the atmospheric pressure, the space (labeled A) above the mercury level in a barometer tube is   filled with nitrogen   filled with air   essentially vacuum   filled with water   Half-n-half Clue   4. What instrument is used for measuring atmospheric pressure?   Sphygmomanometer   Barometer   Hygrometer   Hydrometer   Half-n-half Clue   5. The average atmospheric pressure at sea level is 760 mm Hg. If the relative density of mercury is 13.6, then the air pressure can support _______ m of vertical length of a water column at sea level.   10336   0.76   101396   10.336   Half-n-half Clue   6. _______ states that the product of the pressure and volume of a fixed mass of gas is constant provided the temperature is unchanged.   Dalton's Law   Boyle's Law   Avogadro's Law   Charles' Law   Half-n-half Clue   7. Which is the 'odd one out'?   N   mm Hg   bar   Pa   Half-n-half Clue