Transformers are rated in Study guides, Class notes & Summaries

Does a fire hood system and a kitchen need to be monitored by the fire alarm system? - Yes What does P.L.F.A stand for? - Power Limited Fire Alarm What does N.P.L.F.A stand for? - Non-Power Limited Fire Alarm What is the difference between P.F.L.A and N.P.F.L.A? - an N.P.L.F.A can operate at up to 600v, and the power output isn't limited a P.L.F.A has the voltage and power limited by a listed power source. What material must N.P.F.L.A circuit conductors be made from? - ONLY solid...

NETA 2 Top Exam Questions and answers, rated A+ Under what considerations can tag out without lock out be permitted? - -***&If an energy isolating device is not capable of being locked For PV systems, a(n) _____ is a device that changes direct-current input to an alternating-current output. - -Inverter Identify the contact pictured above. (NC and NO separated by a node) - -Form C When applying personal protective grounds, which end is attached first? - -***&The equipment end An ...

HVAC-R Final Exam 1. volt amps: Transformers are normally rated in? 2. true: An insulated jumper may be used to temporarily jump a component in an electrical circuit(true or false)? 3. divided by 10: When using a 10 wrap multiplier the reading on the meter must be? 4. ladder diagram: An electrical line wiring diagram is often called?

Second Year IEC Final Exam Questions and Answers 100% Pass ______ in utility transmission lines reduces the power losses in the transmission conductors. increasing the voltage ______ shall not support luminairs weighing over 6 lb. lampholder _______ surrounds the windings in typical "pole-mounted" transformers. oil 40C = ____ F 104 A .25KVA transformer has a nameplate rating of 240/480 primary volts 120/240 secondary volts. IF rated voltage is applied to the primary the sec...

NETA 2 QUESTIONS AND ANSWERS ALREADY GRADED A Under what considerations can tag out without lock out be permitted? ***&If an energy isolating device is not capable of being locked For PV systems, a(n) _____ is a device that changes direct-current input to an alternating-current output. Inverter Identify the contact pictured above. (NC and NO separated by a node) Form C When applying personal protective grounds, which end is attached first? ***&The equipment end An induction ...

NFPA 72 Questions and Answers with Certified Solutions What does PFLA stand for? Power Limited Fire Alarm. What does NPFLA stand for? Non-Power Limited Fire Alarm. What material must NPFLA circuit conductors be made from? Only solid or stranded copper is permitted. What is a single station detector? Battery powered smoke detectors that do not communicate off premises. What is a multiple station detector? Mains powered smoke detectors with battery backup that are linked toget...

TFM 12 Fire Alarm Technical Questions and Answers 100% Pass Does a fire hood system and a kitchen need to be monitored by the fire alarm system? Yes What does P.L.F.A stand for? Power Limited Fire Alarm What does N.P.L.F.A stand for? Non-Power Limited Fire Alarm What is the difference between P.F.L.A and N.P.F.L.A? an N.P.L.F.A can operate at up to 600v, and the power output isn't limited a P.L.F.A has the voltage and power limited by a listed power source. What material m...

HVAC pre-test questions and answers graded A+ Two basic categories of chillers are Compression cycle and absorption The 5 requirements for comfort are temperature, humidity, filtration, ventilation and _______ Circulation The primary function of an expansion device is to: Reduce pressure on liquid refrig, regulate flow, lower the boiling point below the temp of the load All of the above The wet-bulb depression is The difference between the dry-bulb and wet-bulb temperatures T...

Does a fire hood system and a kitchen need to be monitored by the fire alarm system?Answer - Yes What does P.L.F.A stand for?Answer - Power Limited Fire Alarm What does N.P.L.F.A stand for?Answer - Non-Power Limited Fire Alarm What is the difference between P.F.L.A and N.P.F.L.A?Answer - an N.P.L.F.A can operate at up to 600v, and the power output isn't limited a P.L.F.A has the voltage and power limited by a listed power source. What material must N.P.F.L.A circuit conductor...

What does A.W.G stand for? - American Wire Gauge What size conductors are permitted? - Size 18 A.W.G and 16 A.W.G are permitted, provided they do not exceed certain capacities. What is used to protect transformers or other devices supplied from power-supply conductors? - An over-current device not rated over 20 amperes. When located within 7 feet of the floor, how shall cables be fastened? - Cables shall be fastened in an approved manner at intervals of not more than 18 inches. Si...