# Civil Engineering - Hydraulics - Discussion

### Discussion :: Hydraulics - Section 3 (Q.No.11)

11.

Atmospheric pressure varies with

 [A]. altitude [B]. temperature [C]. weather conditions [D]. all of the above.

Explanation:

No answer description available for this question.

 Vilas Tembhurne said: (Aug 14, 2013) Atmospheric pressure varies with the altitude.

 Kashi Ram Upadhayaya said: (Oct 7, 2015) Do you have any reason?

 Maulik Joshi said: (May 5, 2016) Altitude increases the atmospheric pressure decreases.

 Shuaan said: (Jul 16, 2016) Increases with Altitude. Atmospheric Pressure has nothing to do with weather condition or temperature.

 Pawan said: (Nov 18, 2016) I think d is the right answer. Atmospheric pressure at any point is numerically equal to the weight of the air column of the unit x sectional area. Temperature can vary the weight of the air. Weather conditions also vary the weight of air.

 Manish said: (Nov 20, 2016) The correct answer is option A.

 Ehsan Khosa said: (May 14, 2017) I think Option A is the correct answer.

 Prasun said: (Jun 15, 2017) A is the answer. At an elevation of 10 km (6 miles or about 30,000 feet), roughly the height of Mt. Everest, pressure drops to 265 millibars. That's less than 30% of the pressure at sea level! Both atmospheric pressure and the density of air decrease with altitude.

 Rinku Meena said: (Nov 28, 2017) This happens when the temperature of air is increased. Warm air molecules have more energy, so they move faster and create more pressure. Likewise, cold air has less energy and therefore exerts less pressure on its surroundings. The denser the air is, the more molecules there are in that given space.

 Saeed said: (Nov 9, 2018) I think A is the correct answer.

 Mukul said: (Jan 1, 2019) Altitude is the correct answer.

 Abhik said: (Mar 11, 2019) Warm air are more faster and create more pressure. So it depends.

 Abdul Latif said: (Mar 30, 2019) Option D is correct. Atmospheric pressure increases with altitude as well as with temperature.

 Anil Kumar Bhanja said: (Jun 8, 2019) Agreed @Vilas Tembhurne and @Maulik Joshi.

 Saurabh Verma said: (Jun 11, 2020) The answer is A as altitude increase atmospheric pressure decrease.

 Amit said: (Aug 20, 2020) Pressure on Earth varies with the altitude of the surface, so air pressure on mountains is usually lower than air pressure at sea level. Pressure varies smoothly from the Earth's surface to the top of the mesosphere. Although the pressure changes with the weather, NASA has averaged the conditions for all parts of the earth year-round. As altitude increases, atmospheric pressure decreases. One can calculate the atmospheric pressure at a given altitude. Temperature and humidity also affect the atmospheric pressure, and it is necessary to know these to compute an accurate figure. The graph at right was developed for a temperature of 15°C and relative humidity of 0%.

 Baburao said: (Dec 3, 2020) The correct answer is A.

 Mudasir Shah said: (Jan 23, 2021) D is correct answer. Atmospheric pressure decreases at higher altitude, because it for cooking more time required at altitude. And it also varies with temperature warmer air exert more pressure than colr air.

 Ayoub Shabnum said: (Aug 21, 2021) D is the correct answer.

 Dilbandhu Yadav said: (Aug 25, 2021) D is the correct answer.