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Barometric distribution ..



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Q1. A simple U tube manometer connected to a pipe in which liquid is flowing with uniform speed will give which kind of pressure?

(a) Absolute Pressure
(b) Vacuum Pressure
(c) Gauge Pressure
(d) None of the mentioned

Q2. For dynamic fluid motion in a pipe, the pressure measurement cannot be carried out accurately by manometer.

(a) True
(b) False
(c) -
(d) -

Q3. As we go upwards, at height there is slight decrease in pressure variation.

(a) True
(b) False
(c) -
(d) -

Q4. .What is the variation observed in temperature in atmosphere with respect to elevation?

(a) It goes on decreasing with height
(b) It goes on increasing with height
(c) It first increases then decreases
(d) It first decreases then increases

Q5. Why can?t the density be assumed as constant for compressible fluids?

(a) It shows variation with temperature and pressure
(b) It remains constant with temperature and pressure
(c) It becomes almost constant at very high temperature
(d) None of the mentioned

Q6. Pressure variation for compressible fluid is maximum for which kind of process?

(a) Isothermal
(b) Adiabatic
(c) Quasi Static
(d) None of the mentioned

Q7. Calculate the pressure of air at a height of 3500m from sea level where pressure and temperature of air are 10 N/cm2 and 25? respectively. The temperature lapse rate is given as 0.0065 ? /m. Take density of air at sea level equal to 1.2 kg/m3.

(a) 19.7 N/cm2
(b) 9.85 N/cm2
(c) 4.93 N/cm2
(d) 6.24 N/cm2

Q8. Calculate the pressure at a height of 6500m above the sea level if the atmospheric pressure is 10.145 N/cm2 and temperature is 25? assuming air is incompressible. Take density of air as 1.2 kg/m3. Neglect variation of g.

(a) 4.98 N/cm2
(b) 2.49 N/cm2
(c) 1.24 N/cm2
(d) None of the mentioned

Q9. The barometric pressure at sea level is 760 mm of Mercury while that on a mountain top is 715 mm. If the density of air is assumed constant at 1.2 kg/m3 , what is the elevation of the mountain top?

(a) 510 m
(b) 1020 m
(c) 255 m
(d) 128 m

Q10. If the atmospheric pressure at sea level is 7.5 N/cm2, determine the pressure at a height of 3000m assuming the pressure variation follows isothermal law. The density of air is given as 1.2 km/m3.

(a) 4.68 N/cm2
(b) 9.37 N/cm2
(c) 2.34 N/cm2
(d) None of the mentioned


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0 Answer
486 views

1° C Rise In Temperature Is Equal To A Rise Of

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1° C Rise In Temperature Is Equal To A Rise Of

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In A Closed Flask Of 5 Litres, 1.0 G Of H2 Is Headed From 300 To 600 K. Which Statement Is Not Correct

Modified 243 Year Ago

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243 Year Ago

In A Closed Flask Of 5 Litres, 1.0 G Of H2 Is Headed From 300 To 600 K. Which Statement Is Not Correct

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440 views

Equal Amounts Of Two Gases Of Molecular Weight 4 And 40 Are Mixed. The Pressure Of The Mixture Is 1.1 Atm. The Partial Pressure Of The Light Gas In This Mixture Is

Modified 243 Year Ago

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243 Year Ago

Equal Amounts Of Two Gases Of Molecular Weight 4 And 40 Are Mixed. The Pressure Of The Mixture Is 1.1 Atm. The Partial Pressure Of The Light Gas In This Mixture Is

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413 views

Assertion : Effusion Rate Of Oxygen Is Smaller Than Nitrogen. Reason : Molecular Size Of Nitrogen Is Smaller Than Oxygen.

Modified 243 Year Ago

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243 Year Ago

Assertion : Effusion Rate Of Oxygen Is Smaller Than Nitrogen. Reason : Molecular Size Of Nitrogen Is Smaller Than Oxygen.

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0 Answer
412 views

Molecules/ions And Their Magnetic Properties Are Given Below

Modified 243 Year Ago

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243 Year Ago

Molecules/ions And Their Magnetic Properties Are Given Below

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Assertion : We Air Is Heavier Than Dry Air. Reason : The Density Of A Dry Air Is More Than Density Of Water.

Modified 243 Year Ago

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243 Year Ago

Assertion : We Air Is Heavier Than Dry Air. Reason : The Density Of A Dry Air Is More Than Density Of Water.

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