Voltage drop - Study guides, Class notes & Summaries

According to the NEC®, the ampacity of branch circuit conductors must be derated when there are more than how many current-carrying conductors in a raceway? - correct answer 3 Air conditioning overcurrent protective devices can never exceed what percentage of the motor-rated load current or the branch circuit selection current (whichever is greater)? - correct answer 225% Conductors must be derated when installed in conduit - correct answer on or above rooftops Continuous loads are cal...

Zener current will decrease - ANSWER-Refer to figure 1. If the load resistance R2 is reduced by half what happens what happens to zener diode? 4v - ANSWER-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 - ANSWER-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 sheave turns 1 rpm. What is the actual speed of the drive sheave ...

Question Which one of is a fluorescent surface-mounted fixture with a prismatic lens? Answers: • Shower Light • Universal • Wraparound • Strip Light correct answers Answer Wraparound Question Which statement is FALSE with respect to a 60A19W lamp? Answers: • 60 describes the output • A describes the shape • 19 describes the diameter in 1/8's of an inch • W describes the coating or finish of the bulb correct answers Answer 60 describes the output Question ...

Whenever the driver/operator is faced with approaching an unguarded railroad crossing, he or she should: - come to a complete stop The distance that a fire apparatus travels from the time that the brakes are activated until the apparatus makes a complete stop is known as the __________ distance - braking What is in the apparatus maintenance records? - The date and description of all maintenance work, repairs, and other inspections performed on the vehicle. When preforming a voltage drop te...

NCCER ELECTRICAL TEST Questions and Answers 2024 1. The NEC recommends maintaining voltage within a 3% drop. If a branch cir- cuit operates at 240 volts AC. What is the minimum circuit operating volt?: 232 2. What is the name of the connecting device shown in the diagram?: Split-bolt 3. The volt amperes in an AC circuit is the same as: Apparent power 4. What is the voltage drop for a #8 (16.510 cmil) copper wire at 120v. 215 feet one way and a load of 39amps?: 10.5

NICET Level 1 inspection and Testing Exam 2024 When using a pulse load tester on a sealed lead acid battery, the minimum acceptable capacity is... -Answer-80% When a software change is made to a fire alarm system, what percentage of the initiating devices not affected by the change must be tested -Answer-10% When testing elevator recall, the elevator should go to the alternate level when: -Answer-The lobby smoke detector on the recall level is activated Minimum requirement for system docu...

Progression: Maintenance Tech I - II Conventional: Exam In the tree-and-branch architecture, how is the downstream signal from the trunk fed to the distribution branches? What is a common solution when congestion from modem activity and traffic becomes unacceptable in a hybrid fiber/coax (HFC) network? What technologies are defined in DOCSIS 4.0 to help sustain the hybrid fiber/coax (HFC) network infrastructure for several more years? How can a less-experienced technician identi...

IEC YEAR 1 EXAM WITH REAL QUESTIONS AND WELL VERIFIED ANSWERS | ALREADY GRADED A+ | GUARANTEED PASS | LATEST VERSION What is the percentage of voltage drop on a 120-volt circuit? 12 AWG copper conductors were used and the load draws 20 amperes. The distance from the panel to the load is 100 feet. Use K = 12 to calculate the voltage dropped in the conductors. - ANSWER-6% What is the voltage drop on a 120-volt circuit? The circuit uses 12 AWG copper conductors ...

Spectrum - Field Tech New Hire, Spectrum Field Tech New Hire Week 2 Questions and Answers Already Passed What does the "S" in S.A.F.E stand for? Stop What does the "A" in S.A.F.E stand for? Assess What does the "F" in S.A.F.E stand for? Focus What does the "E" in S.A.F.E stand for? Eliminate What are the three branches of the Safety Triangle? Knowledge Technique Attitude What (in electricity) is the direct cause of injury voltage (E), current (I), or resistance (R)? Current (I) Wha...

How DC motors operate? Magnetic lines of force are continuous and always form closed loops; Magnetic lines of force do not cross. Armature: (Definition) The rotating windings of a DC motor. The ____ is a movable electromagnet located between the poles of another fixed permanent (field) magnet as shown. Armature A twisting force called ______ must be developed. _____ is produced by mounting a loop in a fixed magnetic field and as long as the fields of the magnet and armatu...