Hvac unit 1 2 3 - Study guides, Class notes & Summaries

HVAC journeyman prep test Exam Guide 2024 Questions and Answers A listed smoke damper designed to resist the passage of smoke shall be provided at each point in a duct or air transfer opening penetrates a: (A)smoke barrier wall (B)fire rated wall (C)interior wall (D)corridor wall - CORRECT ANSWER-Corridor wall (IMC 607.5.4) Flexible air duct may be what length? (A)10' (B)2' (C)14' (D)6' - CORRECT ANSWER14' (IMC 603.6.1.1) The maximum vertical distance between the front lower lip...

HVAC Unit 1, 2 & 3

HVAC Unit 1, 2 & 3.

Fire alarm lesson 5&6 Questions and Answers 100% Correct Which article of the NEC covers burglary system wiring? Article 725 Correct Non-power-limited circuits operate with voltages up to ? . 600 V Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:08 / 0:15 Full screen Brainpower Read More Tables ? and ? provide limitations for power-limited circuits. 12A and 12B Generally speaking, power-limited fire alarm circuits operate at ? . less ...

What are the five basic components to any schematic? - correct answer 1. A power supply 2. A path for the power 3. A load or component that operates from the power. 4. A switch or component that interrupts the power to the load. 5. A legend or key that explains what the various symbols and abbreviations used in the schematic mean. What are the three basic types of wiring diagrams used in the HVACR trade? - correct answer 1. The ladder diagram 2. The pictorial diagram 3. The installation...

Mold Remediation Contractor TX State exam, With Complete Solution 2024. Can mold be found anywhere? yes, they can grow on virtually any organic substance (food) What is needed for mold to to grow? moisture and oxygen must be present What is the key to mold control? Moisture control According to the EPA, what is the ideal RH? 30 - 50% (below 60%) If water is detected how quickly should it be cleaned and dried to prevent mold growth? within 48 hours What are the EPA regulations for mold...

HVAC-R Midterm Exam Questions With Verified And Updated Solutions. 1.) Temperature can be defined as? - answerLevel of heat 2.) Sensible heat causes? - answerRise in temp. 3.) What direction does heat flow? - answerWarm to cold 4.) Four types of temperature scales? - answerFahrenheit,Rankine,Celsius, & Kelvin 5.) 1 BTU will raise 1lb. of water? - answer1 Degree 6.) Latent heat causes? - answerChange of state 7.) Pressure in a bourdon tube, what happens to gauges? - answerCauses them to s...

Revenue Management Latest 2023 with Certified Solutions Revenue Management Also Known as Yield Management An essential instrument for matching supply and demand by dividing customers into different segments based on their purchase intentions and allocating capacity to different segments in a way that maximizes a particular's facility's revenues. The constellation of tools and actions dedicated toward the achievement of an optimal level of the hotels net revenues and gross operating profit 7...

- Answer-Consider a room which is 40' square. How many 15cd wall mounted strobes are required to adequately cover this space? Annually - Answer-What is the testing frequency of a strobe? 15 - Answer-In a corridor application, visible appliances shall be rated not less than ________ cd? 4 hours - Answer-Consider a household fire alarm system where the primary power is provided by a circuit that can be switched off by means other than a circuit breaker. The battery must be recharged in__...

What is the frequency for smart cards? 13.56 MHz The distances that a CCTV signal may be run are determined by what? 1. Signal strength at the source 2. Required signal strength 3. Signal loss over the distance What are the most commonly controlled conditions in HVAC systems? 1. Pressure 2. Temperature 3. Humidity 4. Rate of Flow 5. On, Off or variable speed What is the primary reason for considering a physical ring? A redundant cable path for disaster recovery. ...