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School Physics Quiz : Pressure


Answer the following questions based on the change of state and latent pressure.

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Multiple choice

Your Performance  

1.

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

  100

  10000

  100000

  Half-n-half Clue
 

2.

6 bars = _______ millibars

  60

  6000

  0.6

  0.006

  Half-n-half Clue
 

3.

Barometers modified to measure the height above sea level are called

  sphygmomanometers

  manometers

  hydrometers

  altimeters

  Half-n-half Clue
 

4.

pressure measurement
A _______ measures the pressure in terms of the difference in fluid levels between the vertical arms of a glass U-tube.

  Barometer

  Manometer

  Sphygmomanometer

  Hydrometer

  Half-n-half Clue
 

5.

With increase in altitude, the pressure of the atmosphere

  may increase or decrease

  remains constant

  decreases

  increases

  Half-n-half Clue
 

6.

pressure - manometer
If the density of liquid A (carbon tetrachloride) is 1.6 g cm-3 and its height hA = 11.2 cm, then the density of oil B of height hB = 20 cm in the U-tube is about

  0.90 g cm-3

  2.84 g cm-3

  0.35 g cm-3

  1.11 g cm-3

  Half-n-half Clue
 

7.

If a pressure of  8 Pa acts on 3 m2 of area, then the force acting on the surface is

  2.67 N

  24 N

  2.67dynes

  24dynes

  Half-n-half Clue
 


 
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