Ambient air - Study guides, Class notes & Summaries

NAUI eLearning (SCUBA) Questions and Answers Already Passed What is the importance of equalizing pressure during a dive? Equalizing pressure prevents discomfort or injury to the eardrums and sinuses due to changes in ambient pressure as a diver descends or ascends. What should a diver do if they feel disoriented underwater? The diver should remain calm, stop moving, and assess their surroundings. They can signal their buddy or use a dive light to find their orientation. How does ...

HVAC NATE Gas Heat Exam Prep (Latest 2024/ 2025 Update) 100% Correct Questions and Verified Answers| Grade A Q: When starting up a dual system, the temperature rise method for determining airflow cannot be used with compressor cycle of the heat pump because: Answer: The capacity of the system varies too much with outdoor temperature. Q: The flame pattern a technician would expect to see on a properly operating single stage gas furnace equipped with "in shot" type burner is a:...

NAFI CFEI OFFICIAL Exam Graded A+ CODE A standard that is an extensive compilation of provisions covering broad subject matter or that is suitable for adoption into law independently of other codes and standards. GUIDE A document that is advisory or informative in nature and that contains only non mandatory provision. This may contain mandatory statements such as when it can be used, but the document as a whole is not suitable for adoption into law. Recommended Practice A document that...

Carbon Filters - Answer-Mitgating air pollution including ozone and VOC content. Food Storage Volume Capacity - Answer-20 liters per occupant, but no more than 7,000 liters of combined space. Mechanical Noise Criteria (NC) Requirement - Answer-Open Office Spaces and Lobbies - max NC of 40 Closed Office Spaces - max NC of 35 Conference Rooms - max NC of 30 Daylighting Fenestration - Answer-Feature that addresses both window size and transmittance for working and learning spaces and uni...

Tidal volume is always: a) greater than zero and less that total lung capacity b) greater than residual volume c) greater than functional residual capacity d) greater than residual capacity and less than total lung capacity e) all options are correct - Answer a - correct; tidal volume is the amount you breathe in and out when relaxed so is less than maximum but more than zero b - no; we cant measure residual volume so dont know c - no; FRC includes residual capacity, which cant be meas...

EPA SECTION 608 CORE (2021-2022 revision) A disposable cylinder should be reduced to what pressure before scrapping? a. 0 psig b. 20 psig c. 50 psig d. 80 psig A major system repair is being performed on a R-22 appliance. What CANNOT be done to recharge the appliance? a. Add R-22 after the repair is complete. b. Retrofit the unit to R-407C. c. Use recovered or recycled R-22 from the same owner. d. Top off the unit with R-410a. A refillable cylinder must not be filled above what ...

TCFP Driver Op Questions and Answers 2023 Compared to full-size pumpers, initial attack fire apparatus have ? a. Larger Chassis b. smaller chassis c. larger agent tank size d. the same chassis and agent tank size b When water converts to a gas, water vapor, or steam, the water: a. immediately dissipates so it is rarely visible b. changes to droplets that will fall back to the surface c. only become visible if the ambient air temp is above 40 degrees d. only becomes visible a...

Absolute Temperature Ans- A temperature measured in Kelvins (K) or Rankines (R). Accelerant Ans- A fuel or oxidizer, often an ignitible liquid, intentionally used to initiate a fire or increase the rate of growth or spread of fire. Accident Ans- An unplanned event that interrupts an activity and sometimes causes injury or damage or a chance occurrence arising from unknown causes; an unexpected happening due to carelessness, ignorance, and the like. Active Fire Protection System Ans-...

DOTD Asphalt Inspection 2 Questions and Answers (100% Verified)DOTD Asphalt Inspection 2 Questions and Answers (100% Verified)DOTD Asphalt Inspection 2 Questions and Answers (100% Verified) alignment - ANSWER-A stringline set on or near the ground is used for what? located properly, smooth with no bends, & the follower is directly above the line - ANSWER-What are 3 inspection points for the alignment control of a paver? below 50 degrees f - ANSWER-What is the ambient air temperature limit...

1. An air-to-air heat pump has many of the same components as an air conditioning system. The major difference is that a heat pump also has a (an); : C: reversing valve. 2. What is the difference between "demand defrost" and "timed defrost?" : D: demand defrost only happens when needed, and time defrost is on timed temperature 3. The thermostat that controls the auxiliary electric heat according to the outdoor temperature is called the; : C: outdoor ambient thermostat. 4. The out...