A coil - Study guides, Class notes & Summaries

NEIEP 700 Final Exam Version 1 (Latest 2023/ 2024 Update) Questions and Verified Answers| 100% Correct| Grade A Q: When an elevator constructor describes a normal open contact or a making contact he or she is describing the same contact configuration. Answer: True Q: As current flows through a relay's coil _______________________ generated by the coil will pull or pick the relay's armature . Answer: Magnetic field Q: The most common relay used today is the plug type....

ESCO Light Commercial Refrigeration EXAM with Complete Solutions In a dry type (direct expansion) evaporator, liquid refrigerant must boil away as close to the end of the coil as possible in order to: ️️ The difference between the temperature of the refrigerant boiling in the evaporator and the temperature at theevaporator outlet is known as: ️️ An expansion device that is stuck open will cause: ️️ When measuring evaporator superheat on a commercial system that has a long su...

NEIEP 700 Final Exam Version 2 (Latest 2024 / 2025 Update) Questions and Verified Answers | 100% Correct | Grade A Q: What is the primary reason AC relays hum or chatter? Answer: AC cycle reversal Q: Which of the following best describes the contact rating of a magnetic switch? Answer: The maximum voltage and current that can be safely interrupted Q: How can you reduce contact arcing on plug-in relay contacts? Answer: Wire two contacts of the same relay in series Q: How are latching relays reset...

NEIEP 700 Final Exam Version 1 (Latest 2024 / 2025 Update) Questions and Verified Answers | 100% Correct | Grade A Q: When an elevator constructor describes a normal open contact or a making contact he or she is describing the same contact configuration. Answer: True Q: As current flows through a relay's coil _______________________ generated by the coil will pull or pick the relay's armature . Answer: Magnetic field Q: The most common relay used today is the plug type. Answer: True Q: The maj...

ESCO Light Commercial Refrigeration EXAM 2024/2025 with Complete Solutions. In a dry type (direct expansion) evaporator, liquid refrigerant must boil away as close to the end of the coil as possible in order to: A. operate at high efficiency. B. ensure that frost does not accumulate. C. sub-cool the compressor. D. ensure proper oil return. - Answer - A. operate at high efficiency. The difference between the temperature of the refrigerant boiling in the evaporator and the temperature at t...

NEIEP 700 Final Exam Version 2 (Latest 2023/ 2024 Update) Questions and Verified Answers| 100% Correct| Grade A Q: What is the primary reason AC relays hum or chatter? Answer: AC cycle reversal Q: Which of the following best describes the contact rating of a magnetic switch? Answer: The maximum voltage and current that can be safely interrupted Q: How can you reduce contact arcing on plug-in relay contacts? Answer: Wire two contacts of the same relay in series ...

Power Engineering 4A - Unit 2 - Elementary Physical, Chemical, and Thermodynamic Principles 100% Pass The Second Law of Thermodynamics states that in order to transfer heat from a colder substance to a hotter substance, _________ must be supplied. Select one: a. Internal energy. b. External work. c. Intense energy. d. Mechanical refrigeration. e. Physical labour. B Which one of the following methods is a method of ensuring uniform steam distribution in steam coils? Select one:...

IHS FINAL EXAM QUESTIONS AND ANSWERS ALREADY PASSED What is the difference between hearing instrument verification and validation? Select one: A. Verification measures take into account the patient's/client's opinions and perceptions in addition to determining the acoustic success of the hearing instrument fitting, while validation measures only include the patient's/client's opinions and perceptions B. Verification is a measure of the wearer's satisfaction with the hearing instrument f...

NEIEP 600 Final VERIFIED 100% SOLUTIONS 2023//2024 WITH DIAGRAM ILLUSTRATIONS Zener current will decrease Refer to figure 1. If the load resistance R2 is reduced by half what happens what happens to zener diode? 4v Refer to figure 1. The zener diode is designed to breakdown at 6VDC what is the voltage drop across R1 with a constant DC supply of 10VDC 30 rpm An elevators motor rotates at 1200 rpm at contract speed and is geard at a ratio of 40:1. If the motor turns 40 rpm the...

On an R-22 system, line diameters and lengths are typically specified for a vapor pressure drop that does not exceed what? CORRECT ANSWER 6-7PSI or 6F What is the primary purpose of using flux when soldering copper or brass parts? CORRECT ANSWER Prevent Oxidation The water that results from a defrost cycle of an air to air heat pump(runoff) must? CORRECT ANSWER Drain off and away from the outdoor coil. Why must the runoff be drained off and away from the outdoor coil? CORRECT ANSWER Exc...

DASLE MN What system has a tightening wrench to tighten and loosen the band? - Automatrix What is the purpose of a wedge? How many do you need for an MOD restoration? - To contour and hold the band securely, 2 wedges auto matrix is unique in that it has a wrench that does what? - has no retainer to hold the band in place. the tightening wrench is inserted into the coil and is turned clockwise to tighten the band What occurs if the wedge is not place properly? - Overhang or cupping Class III & ...