Description : Which company is the best Oxygen Cylinder suppliers in Dubai?
Last Answer : There are many suppliers of Oxygen cylinder in Dubai.. Here are the list of best supplier of oxygen cylinder - Medical Mart Sharjah oxygen company Portable oxygen concentrator Oxygen concentrator Dubai Gulf cyro
Description : What are the things to look for when buying an Oxygen Cylinder?
Last Answer : You don't buy an oxygen cylinder. When you need more oxygen you return the tank and get another one. The tank is then tempered and tested to make sure it's not going to crack under pressure when they refill it.
Description : you sell oxygen cylinder size small or medium?
Last Answer : You can buy oxygen cylinders online at http://www.trishir.com/products-details.asp?POID=251 They offer many cylinders of small,medium portable cylinders You can buy small oxygen cylinders at www.oxygenmobility.com For more details call 800-716-6674.
Description : On the basis of Boyle’s Law explain why mountaineers carry oxygen cylinder with them.
Last Answer : Ans. At high altitude as the atmospheric pressure is low , the air is less dense. As a result less oxygen is available for breathing .
Description : A cylinder contains 640 gm of liquid oxygen. The volume occupied (in litres) by the oxygen, when it is released and brought to standard conditions (0°C, 760 mm Hg) will be __________ litres. (A) 448 (B) 224 (C) 22.4 (D) Data insufficient; can't be computed
Last Answer : (A) 448
Description : A cylinder contains oxygen at a pressure of 10 atm and a temperature of 300 K. The volume of the cylinder is 10 liters. What is the mass of the oxygen in grams? Molecular weight (MW) of oxygen is 32 g/mole? a. 125.02 b. 130.08 c. 135.05 d. 120.04
Last Answer : 130.08 {(10atm)(10)(32)/(0.0821) (300K)}
Description : Does Medical Oxygen contains pure oxygen?
Last Answer : Medical oxygen is high purity oxygen that is used for medical treatments and is developed for use in the human body. Medical oxygen cylinders contain a high purity of oxygen gas; no other types gases are allowed in the cylinder to prevent contamination.
Description : What happens when fire reacts with pure oxygen?
Last Answer : It burns faster (and hotter).
Description : What data does a sample of pure water irrespective of its source contains 11.1 hydrogen and 88.9 oxygen support?
Last Answer : It might have supported Proust's law or the law of definitecomposition, or law of constant composition. But unfortunately thedata used are not accurate. The correct proportions, based onrelative atomic masses of hydrogen and oxygen being 1.008 and15.999 give the results as 11.2% and 88.8%.
Description : Nitrogen 1. Is non-essential for the animal bodies 2. In air dilutes oxygen which, otherwise, is very active in the pure form 3. Makes oxygen soluble in blood 4. Is present in DNA and RNA The correct statements are: (a) 1 and 4 only (b) 2 and 4 only (c) 3 and 4 only (d) 1 and 2 only
Last Answer : Ans:(b)
Description : Human beings use ---- liters of pure oxygen per day. A. 550 (Answer) B. 2500 C. 1,050 D. 10,000
Last Answer : A. 550 (Answer)
Description : High value of BOD (Biochemical Oxygen Demand) indicates that (a) water is less polluted (b) consumption of organic matter in the water is higher by the microbes (c) water is pure (d) water is highly polluted.
Last Answer : (b) consumption of organic matter in the water is
Last Answer : (b) consumption of organic matter in the water is higher by the microbes
Description : Pick out the wrong statement. (A) Theoretical flame temperature is the temperature attained by the products of combustion, when the fuel is burned without loss or gain of heat (B) ... flame temperature (D) Adiabatic flame temperatures of actual combustions are always less than the maximum values
Last Answer : (C) Burning the fuel with excess pure oxygen results in maximum theoretical flame temperature
Description : Ignition temperature of a fuel in air is __________ that in pure oxygen. (A) More than (B) Less than (C) Equal to (D) Either more or less; depends on the type of fuel
Last Answer : (A) More than
Description : The ratio of maximum adiabatic flame temperature in air to that in pure oxygen is always (A) 1 (B) < 1 (C) > 1 (D) Unpredictable
Last Answer : (B) < 1
Description : The maximum adiabatic flame temperature in air as compared to that in pure oxygen is (A) Much lower (B) Much higher (C) Same (D) Either lower or higher, depends on the type of fuel
Last Answer : (A) Much lower
Description : In general, the limit of inflammability/explosion limit of fuel gases is widened by the (A) Increase in gas pressure (B) Increase in temperature (i.e. preheating) (C) Use of pure oxygen for combustion instead of air (D) All (A), (B) & (C)
Last Answer : (D) All (A), (B) & (C)
Description : Pure carbon is completely burnt in oxygen. The flue gas analysis is 70%CO2 , 20%CO and 10%O2 . The percent excess oxygen used is (A) 20 (B) 12.5 (C) 0 (D) 10
Last Answer : (C) 0
Description : A fuel containing carbon and carbon monoxide (but containing no hydrogen or its compounds) is burnt in pure oxygen at constant pressure. Its gross calorific value as compared to net calorific value will be (A) More (B) Less (C) Same (D) Data insufficient; can't be predicted
Last Answer : (C) Same
Description : The maximum adiabatic flame temperature in air is __________ the maximum flame temperature in pure oxygen. (A) Lower than (B) Higher than (C) Same as (D) Not related to
Last Answer : (A) Lower than
Description : Volumetric composition of flue gas analysed with the Orsat apparatus is : CO2 = 12%, O2 = 8%, CO = nil, N2 = 80%. This flue gas composition indicates that (A) Pure oxygen has been used for combustion ... very high (C) Excess air has been used for combustion (D) Hydrogen is not present in the fuel
Last Answer : (C) Excess air has been used for combustion
Description : A sample of pure carbon dioxide, irrespective of its source contains 27.27% carbon and 72.73% oxygen. The data supports [AIIMS 1992] (A) Law of constant composition (B) Law of conservation of mass (C) Law of reciprocal proportions (D) Law of multiple proportions
Last Answer : (A) Law of constant composition