1. If the density of liquid A (carbon tetrachloride) is 1.6 g cm-3 and its height hA = 21.2 cm, then the density of oil B of height hB = 40 cm in the U-tube is about   0.85 g cm-3   3.01 g cm-3   0.33 g cm-3   1.18 g cm-3   Hint Half-n-half Clue   2. 12 litres of a gas at a pressure of 3 bar are compressed to 6 litres without any change in the temperature. The final pressure of the gas is about   12  bar   3.00  bar   1.50 bar   6.0  bar   Half-n-half Clue   3. 3 bars = _______ millibars   30   3000   0.3   0.003   Half-n-half Clue   4. Pressure is defined as   force × distance   mass / volume   force / area   mass × acceleration   Half-n-half Clue   5. Air is trapped in the space (labeled A) above the mercury level in the tube of a barometer, which measures 745 mm Hg. If the atmospheric pressure is 760 mm Hg, then the pressure of the trapped air is   between 745 and 760 mm Hg   15 mm Hg   760 mm Hg   745 mm Hg   Half-n-half Clue   6. 1 Pascal = 1 _______ m-2   Dyne   Joule   Newton   Erg   Half-n-half Clue   7. _______ is a type of barometer that consists essentially of a thin metal box exhausted of air.   Aneroid   Hydrometer   Manometer   Anemometer   Half-n-half Clue