1. _______ is a type of barometer that consists essentially of a thin metal box exhausted of air.   Manometer   Hydrometer   Aneroid   Anemometer   Hint Half-n-half Clue   2. 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   101396   10.336   0.76   Half-n-half Clue   3. 25 litres of a gas at a pressure of 4 bar are compressed to 5 litres without any change in the temperature. The final pressure of the gas is about   25  bar   20.0  bar   1.00  bar   0.80 bar   Half-n-half Clue   4. 5 Pa = _______ dynes cm-2   500000   5e-05   0.5   50   Half-n-half Clue   5. 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.   1000   100000   100   10000   Half-n-half Clue   6. If the density of liquid A (carbon tetrachloride) is 1.6 g cm-3 and its height hA = 26.6 cm, then the density of oil B of height hB = 50 cm in the U-tube is about   1.18 g cm-3   0.85 g cm-3   3.01 g cm-3   0.33 g cm-3   Half-n-half Clue   7. The SI unit of pressure is   Joule   Watt   Newton   Pascal   Half-n-half Clue