A.
mark the correct statement:
select one:
1. local atmospheric pressure depends only upon the height of locality above mean sea level
2. local atmospheric pressure is always below the standard atmospheric pressure
3. standard atmospheric pressure is the mean local atmospheric pressure at sea level incorrect
incorrect
4. a barometer reads the difference between local and standard atmospheric pressure
b.
the pressure at the bottom of a freshwater lake is 1.5 times that at half the depth. if the water barometer reads 10 m, the depth of lake is
select one:
1. 10 m incorrect
incorrect
2. 15 m
3. 20 m
4. 25 m
c.
a horizontal pipe line conveys a constant rate of flow which is measured by a venturimeter located in it. the secondary element is a differential manometer. when the manometer is inclined upward in the direction of flow, the deflection on a differential manometer will:
select one:
1. increase
2. decrease
3. remain same
4. fluctuate and provide erroneous results
d.
a piezometer is used to measure the:
select one:
1. undisturbed liquid pressure
2. gauge pressure in a static mass of liquid
3. pressure difference between two liquids
4. dynamic pressure of a moving stream of liquid
5. pressure if the flowing fluid is a gas
e.
a pitot static tube measures:
select one:
1. static pressure
2. total pressure
3. difference between total and static pressure
4. difference between total and dynamic pressure
5. difference between dynamic and static pressure
f.
an ideal fluid:
select one:
1. is compressible and viscous
incorrect
2. is compressible and non-viscous
3. is incompressible and viscous
4. is incompressible and non-viscous