Dry type transformers - Study guides, Class notes & Summaries

BOMA – HVAC QUESTIONS AND ANSWERS 100% PASS Two basic categories of chillers are the compression cycle and absorption The five requirements for comfort are proper temperature, humidity, filtration, and ventilation circulation The primary function of an expansion device is to produce a reduction in the pressure on the liquid refrigerant, regulate the flow of refrigerant into the evaporator, lower the boiling point of the refrigerant far enough below the temperature of the load to g...

Conductors connected to the high leg of a four-wire delta system be color-coed with what color of insulation or tape? -correct answer -Orange (NEC Section 110.15) Dry-type transformers rated at 112.5kVA or less may be located out in the open provided they are separated from combustible material by a distance of ____. -correct answer -12" If the power factor is improved by the addition of a capacitor, the motor running overcurrent device must be selected based on the ___. -correct answer -...

NETA 3 Exam 2023 with 100%Correct Answers. Power-factor or dissipation-factor tip-up tests on large dry-type transformers that exceed ______ percent should be investigated correct answer1 A switch or circuit breaker enclosure may be used as a raceway if the conductor fill does not exceed % correct answer40 The Ferranti effect is experienced on a long overhead transmission line when it is correct answerLightly loaded In fiber optic cables, a 50% reduction in signal strength is a loss of dB...

. Disregarding exceptions, dry-type transformers located indoors having a rating of greater than _____ shall be installed in a transformer room of fire-resistant construction. A. 75 KVA B. 87 1/2 KVA C. 112 1/2 KVA D. 50 KVA - ANSWER C- 112 1/2 KVA 450.21(B) pg 335 2. What is the MINIMUM height allowed for a fence enclosing an outdoor installation of 2,400 volt electrical equipment? A. 6 feet B. 7 feet C. 8 feet D. 9 feet - ANSWER B - 60 7 feet

When using a dynamic schedule and the energy profile in an hour is >250 MW and the actual hourly integration deviates from the hourly energy profile by ____ the tag must be modified. A. 100 MW B. 10% C. 50 MW D. 25% B. 10% Dry steam plants, flash steam plants, and binary cycle power plants are the three main types of what kind of generating plant? A. Nuclear generators B. Combustion turbine generators C. Geothermal generators D. Hydroelectric generators C. Geothermal generators...

ELECTRICIANS PRACTICE EXAM QUESTIONS AND ANSWERS 100% ACCURATE ELECTRICIANS PRACTICE EXAM QUESTIONS AND ANSWERS 100% ACCURATE ELECTRICIANS PRACTICE EXAM QUESTIONS AND ANSWERS 100% ACCURATE 1. Disregarding exceptions, dry-type transformers located indoors having a rating of greater than _____ shall be installed in a transformer room of fire-resistant construction. A. 75 KVA B. 87 1/2 KVA C. 112 1/2 KVA D. 50 KVA - ANSWER-C- 112 1/2 KVA 450.21(B) pg 335 2. What is the MINIMUM height ...

Power-factor or dissipation-factor tip-up tests on large dry-type transformers that exceed ______ percent should be investigated 1 A switch or circuit breaker enclosure may be used as a raceway if the conductor fill does not exceed % 40 The Ferranti effect is experienced on a long overhead transmission line when it is Lightly loaded In fiber optic cables, a 50% reduction in signal strength is a loss of dBm 3 Non time delay fuses for the protection of wound rotors ...

18. The entire area of an aircraft hangar, including any adjacent and communicating area not suitably cut off from the hanger, shall be classified as a Class I, Division 2 or Zone 2 location up to a level ______ above the floor. A. 12 inches B. 18 inches C. 24 inches D. 30 inches - ANSWERB 18 inches 513.3(B) pg 396 1. Disregarding exceptions, dry-type transformers located indoors having a rating of greater than _____ shall be installed in a transformer room of fire-resistant construction...

PSI Journeyman Online Practice Test Questions with Certified Solutions A fitting is a part of a wiring system that is intended primarily to perform which type of function? mechanical When the disconnecting means of a transformer is located remotely it must be? lockable If installed and routed on the outside of a raceway, the length of the equipment bonding jumper shall not exceed how many feet? 6 feet What is an askarel? a group of nonflammable synthetic chlorinated hydrocarbons used as elec...

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...