Hvac electrical main test - Study guides, Class notes & Summaries

RCDD Practice Test Latest Questions With Complete Solutions. C If the input signal power to a communication system is 1 W and the output power is 1 mW, the system attenuation is: A. 3 dB B. 20 dB C. 30 dB D. 40 dB E. 1000 dB B The signal at the input to a balanced twisted pair cable is 10 mW. The cable is 1000 feet long and has an attenuation of 1 dB per 100 feet. This cable is connected to the input of a receiver. The noise level at the input to the receiver is 1 microwatt. What is t...

HVAC Electrical Test Questions with All Correct Answers There are four principle Electrical Quantities: - Answer-1. Voltage reped by E 2. Amperage reped by I 3. Wattage reped by P 4. Ohms reped by R Ohm's Law is expressed by the principle formula of - Answer-E/I*R The Power Formula is expressed by the principle formula of - Answer-P/I*E To determine the real power capability of an electrical service you must take into account - Answer-Phase, Voltage, and Amperage Having Sub-pa...

FDNY F-80 Fire Safety & Alarm Systems in Homeless Shelters Questions and Answers 100% Pass GOOD As the F-80 C of F holder, you notice a minor defect in the fire protection system and report it to the building owner. In the event the issue is still not corrected three months later, what would be the next step that you are required to take? Report the defect in writing to the Fire Department GOOD Typical causes of fires in homeless shelters are considered which of the following? - Halogen lamps ...

A gravity vent is part of which system in a building? - correct answer smoke management A multipurpose dry chemical extinguisher is rated for which classes of fire? - correct answer A, B, and C A performane-based code does what? - correct answer outlines a requirement that a design has to meet A stakeholder in a public fire safety program can be defined as: - correct answer an individual or group that is impacted by an issue According to NFPA 101, how are content hazards classified -...

NAFA CAFS /Exam What are the 3 types of media used in contaminate control - ANS Active carbon, chemically treated carbon, potassium permanganate What is residence time? - ANS the time it takes air to cross a distance equal to the thickness of the filter without accounting for the resistance of the media through which it travels What are the variations of the contamination control principle - ANS clean the air required by the process, blanket the product with cleaned air, o...

All of the statements about the administrative duties of a fire inspector are TRUE EXCEPT: - correct score The administrative work of the fire inspector is typically delegated to the fire chief Before you plan a meeting: - correct score Make sure that the meeting is the best way to accomplish your objectives The reference library provides the authority in guidance for the inspection, maintenance, and testing for all of the following except: - correct score Pumper apparatus criteria An a...

The floor in spray booths must be made of? - correct answer non-combustible materials Specifies fire codes and standards that are adipted and implemented by all DOD fire departments - correct answer UFC 3-600-1 establishes the foundation for fire prevention and education programs - correct answer DoD instructions 6055.06 2 ways to handle interruptions - correct answer leave box for people to drop off paperwork that needs a signature Allow voice mail to answer your calls when you're ...

It is important to maintain a positive grade away from the structure of at LEAST _______ inch drop per foot for six feet. - Answer- 1 What BEST describes the report statement shown below? "The roof is in good condition for its age." - Answer- Conclusion Which of the following conditions would be LEAST critical to your client's safety? A. A pin hole in the heat exchanger B. No handrails on an interior stairway C. Lack of a pressure and temperature relief valve on the water heater D. A no...

Exterior walls and structural members that are of approved noncombustible or limited combustible materials and interior structural members constructed wholly or partly of wood are considered - correct answer Type III To protect steel structural components of a building, which of the following may be applied to protect the steel from heat? - correct answer Layers of gypsum board Curtain walls: - correct answer are nonbearing exterior walls Which of the following is a component in a requ...

TCFP Firefighter Chapters 26-28 Test graded A+ already passed 2023In a preaction sprinkler system, what must happen before water will flow? Select one: A. The alarm condition must persist for a set time B. An alarm initiating device must be activated C. The dry-pipe valve must close D. System water pressure must drop B. An alarm initiating device must be activated Where is a main sprinkler system valve usually installed? Select one: A. On the main riser, below the water supply con...