A heat exchanger is - Study guides, Revision notes & Summaries

FDNY S-92 Questions and Answers Rated A+ The following are types of what? LPG, CNG, piped natural gas or solid fuel (coke). Portable fueled salamanders/space heaters National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL) for carbon monoxide 35 parts per million (ppm) over an 8 hour period What is the third leading cause of fires in buildings under construction ? temporary heating What is direct heat flow through matter? CONDUCTION What is the transport...

NATE Gas Heating Exam Verified Questions and answers 2023 Latest Update Since 1992, the United States Department of Energy has required that all furnaces sold and installed from that date on must have an AFUE of no less than: A: 70% B: 75% C: 78% D: 80% - correct answer C: 78% Many pre-1992 furnaces have efficiencies around . A: 10% B: 40% C: 60% D: 80% - correct answer C: 60% Today, furnaces with AFUE ratings greater than are available. A: 85% B: 90% C: 100% D: 110% - correct ...

The Problem with Stucco is that it____ - ANSWER-tends to crack How should corner moldings on aluminum sliding be installed - ANSWER-upper molding overlapping A hinge door that rubs the frame may have - ANSWER-loos hinge screws Discoloration or fogging in a window is an indication of - ANSWER-a leaking insulated glass seal what would not be the cause of a sag in a porch ceiling - ANSWER-rotting fascia board what is most highly recommended for repairing aluminum branch circuit wir...

LINDSEY JONES- TMC ACTUAL EXAM QUESTIONS AND ANSWERS 2023 (VERIFIED ANSWERS) 1. Which is the preferred order to manipulate a mechanical ventilator in order to gradually increase alveolar minute ventilation while limiting MAP? ANSWER - Decrease mechanical deadspace, increase VT, increase RR 2. An air-entrainment jet nebulizer is set at 50%. The respiratory therapist analyzes the oxygen coming from the end of the tubing and finds it is 60%. Which of the following most likely explains this ...

HVAC Gas Heat Certification Exam Prep (Latest 2024/ 2025 Update) 100% Correct Questions and Verified Answers| Grade A Q: Why is excess air supplied to all gas-burning appliance burners? Answer: to ensure that there is enough air all all times. Q: The purpose of a gas regulator at a gas burning appliance is to? Answer: B. decreases the pressure to the burner Q: Ture or False: All gas valves snap open and closed. Answer: False Q: Which of the followin...

HVAC NATE Gas Heat Exam Prep (Latest 2024 / 2025 Update) 100% Correct Questions and Verified Answers | Grade A Question: Differential pressure gauge (also called a manometer) is used to... Answer: Measure duct static pressure Question: A line voltage fuse is used to protect from... Answer: Excessive voltage Question: Forced air residential/ light commercial gas furnaces provide heat by... Answer: Circulating air across the heat exchanger Question: No mechanical fasten...

The formula for finding the microfarad value of a capacitor is (Amperage X 2650 divided by the applied voltage). Using this formula with amperage measured at 1.5 amps and applied voltage at 115 volts. The microfarad value of the capacitor would be approximately: a. 35 mfd b. 20 mfd c. 12.5 mfd d. 3.5 mfd - a. 35 mfd A closed loop, water sourced heat pump system drawn: a. water from a pond, runs it through a heat exchanger and returns the water back to the pond b. a fluid through sealed ...

What date was the sale of CFC's & HCFC's restricted to technicians certified in refrigerant recovery? - Correct answer-November 14, 1994 Section 608 of the Federal Clean Air Act requires technicians to what? - Correct answer-Recover all refrigerants. The objective of the Clean Air Act is to protect what? - Correct answer-The earth's stratosphere. HFC's - Correct answer-HydroFlouroCarbon's CFC's - Correct answer-ChloroFluoroCarbon's ODP - Correct answer-Ozone Depletion Potential Which in...

NBRC TMC/CRT/RRT EXAM LATEST 2023- 2024 QUESTIONS AND CORRECT ANSWERS |AGRADE After a patient undergoes a thoracentesis, the respiratory therapist notes that the obtained pleural fluid is clear with a slight straw color. This fluid is most likely the result of A. empyema. B. congestive heart failure. C. lung carcinoma. D. hemothorax. - ANSWER- B. congestive heart failure. Which of the following would be most important to evaluate for a patient who is entering a smoking cessation p...

NBRC TMC/CRT/RRT EXAM REVIEW TEST BANK Kettering Sample Test (A+ GRADED 100% VERIFIED) 2022/2023. NBRC TMC/CRT/RRT EXAM REVIEW TEST BANK 1. A physician has ordered a 4yr old to receive 40% oxygen therapy. You would recomend which of the following oxygen delivery devices. B. Oxygen tent 2. A water barometer is being used to record the barometric pressure. The water within the barometer column has meniscus formation. You would read the barometer pressure at the. A. Bottom of the meniscus...