True/False
Indicate whether the statement is true or false by circling T or F.
|
|
Q 11
Answer - true
Q 12
Answer - true
According to the HOMEWORKLIB RULES when multiple questions are asked or multiple sub category have then answer first four so from my side I'm providing more answer..
1. One of the modes of operation for a Type C supplied air respirator is a....
Hello, could you help me with it . 55. A flowmeter has a completely closed needle valve, and the ball jumps then retums to zero when the flowmeter is plugged into a gas source. Which of the following is correct? I aBourdon gauge is being used II it is a Thorpe tube flowmeter III. it is a back-pressure compensated flowmeter IV. the needle valve is malfunctioning A B. C. D. I & IV II & III I,II & III II,...
14. An automobile tire is inflated to a gauge pressure of 207 kPa (30 lb/in.2) at a time when the surrounding pressure is 1 atm (101.3 kPa) and the temperature is 25°C After the car is driven, the temperature of the air in the tire increases to 40°C. Assuming the volume changes only slightly, what will be the new gauge pressure in the tire? d) An oxygen tank with an internal volume of 20 liters is filled with oxygen under...
1) In the figure below, assume the pipe diameter is 4-inches, (f = 0.035), Distance from BC is 18-feet, distance DE is 187-feet and ∆ z = 69-feet. The elevation of C is 14-feet above the lower water surface. If the pressure head @ C is to be no less than (–) 20 feet, what is the maximum flow rate that can be pumped? (Flow rate in GPM) 2) If the pump from the previous problem has 63% efficiency, what horsepower must be...
9.С rdon workers who enter a trench deeper than 8 fret must always wear (a) a respirator ) an extraction harness (c) a hard hat (4) eye protection () sove cf e above 10. A construction worker may enter an excavation without a protective systers when the eaaratos is potestial cae n ) entirely in Type A soll() less than 5 feet and there is no indication fa (c) free of standing water (d) entirely in Type D soll (e)...
A2. Ethylene vapour C2H4 at 27°C is burned in a combustion chamber with 15% excess air, which is also supplied at 27 °C. The temperature and pressure of the products of combustion are 640 °C and 1.1 bar respectively. The heat released in the combustion chamber is used to heat oil. The combustion chamber is well insulated (a) Obtain the stoichiometric and the actual chemical equation for this process [1596] [1096] (b) The air fuel ratio by mass for the...
56. Fresh air is introduced into a room at such a rate that the air in the room is changed every 5 minutes. The room is 30 by 30 by 10 ft and the air in the room is at 70 °F with a percentage humidity of 60. Outside air at a temperature of 60 °F is used as air supply. The outside air is heated to the room temperature by a heat exchanger. How many BtU per hour must...
4. Air-Conditioning Unit [20 Marks] 1 m3/s of moist air at 32 °C with a relative humidity of 70% is to be treated by a simple air condition system to produce air at 18 °C with a relative humidity of 50% The system will have two stages. In the first stage, the air will pass over cooling coils to dehumidify it, and in the second stage it will be heated electrically to the specified outlet conditions You may ignore the...
1. Ventilation include A. inspiration only B. expiration only c. both inspiration and expiration d. the volume of air that can be exhaled 2. What part of the respiratory system carries out gas exchange? a. larynx b. nasal cavity c. lungs d. diaphragm 3. Which of the following is NOT part of the inspiration? a. the pressure in the lung increases b. the rib cage moves up and out c. the intercostal muscles pull the ribs outwards d. the diaphragm...
A flexible air supply hose is connected to a compressed air tank as shown in the figure. The hose is 5 m long and has an internal diameter of 10 mm. At its free end the hose discharges to the atmosphere. The air leaves the hose at sonic velocity (M = 1), with p = 100 kPa and T = 273 K. The friction coefficient C (the same as f in the Anderson text books) within the hose is 0.0227...
9,10,11,12,13,14, and 15 please a syringe is filled with 40. mL. of air at room temperature (22°C) in the lab and then this syringe is placed into a boiling water bath. After S minutes, the volume of gas in in the syringe (still at lab pressure) should be close to which volume? 9. Which of these is a true statement about a below a tube that is filled with a liquid such as mercury b. The weight of the liquid...