Dielectric Study guides, Class notes & Summaries

In capacitors, what is the purpose of the dielectric? - ANSWER-Prevent arcing within the capacitor Which of the following is true about capacitors in AC circuits? - ANSWER-Current leads voltage all the time What describes a capacitor s ability to store an electrical charge? - ANSWER-Capacitance which of the following statements is correct about polarized electrolytic capacitors? - ANSWER-Voltage polarity must be correct What is the time constant for a circuit with 150k ohms and 2 mic...

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 ...

BICSI OSP Exam Real Test Questions & Correct Answers In areas where future excavation is anticipated, it may be advisable to place the cable at a greater depth. For example, if road grading that will remove 610 mm (24 in) of dirt is planned in a particular area, it would be wiser to initially place the cable at 1.2 m (4 ft) versus the standard 610 mm (24 in). - ANSWER True Placing all of the conduits during the initial conduit system installation is desirable, if not mandatory. ...

Progression: Construction Coordinator I - II Exam Answered Correctly. A chain trencher A return path sweep-and-alignment system is used to adjust which of the following? Anomalies, such as echoes and blind spots, can hide cable faults or cause a technician to misinterpret the signature of a time domain reflectometer (TDR) waveform. What causes an echo on a waveform TDR? As the RF signal travels on the coaxial cable, one portion of the signal may be attenuated more than the others. ...

ATT Test 3 Questions and Answers (Graded A) Henry - ANSWER ️️ The basic unit of inductance Contracts - ANSWER ️️ If the circuit current decreases, the magnetic field of an inductor Concentrate a magnetic field - ANSWER ️️ The inductor is used to varies - ANSWER ️️ The physical appearance of inductors Print or color code - ANSWER ️️ Inductors have the value of their inductive capacity by Air and iron - ANSWER ️️ The common inductors are Core type - ANSWER ️️ I...

NCCER Test Questions and Answers 100% Pass A UL listed rod type ground electrode must have minimum length of 8'' in a circuit of pure capacitance, the current leads the voltage by 90 degrees The standard unit for measuring the cross sectional area of wire is the circular mil the drawing scale is most likely to be found in the drawing title block what is the minimum number of overload sensing units required for all three phase motors 3 what is the resultant distance between center bends fo...

To mount a lens in a nylon suspension type frame, it would be necessary to _______ the lens. a) Drill b) Notch c) Groove d) V-Bevel c) Groove The optical center of a lens is: a) At the geometrical center b) One the 180 line c) At the point where the "a" and "b" measurement meet d) A lens location of zero deviation of the optical axis d) A lens location of zero deviation of the optical axis 01:05 01:09 The progressive power lens has a progressive zone after w...

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...

Test bank of tymoczkos biochemistry a short course 3rd edition Chapter 1 Biochemistry and the Unity of Life Matching Questions Use the following to answer questions 1–10: Choose the correct answer from the list below. Not all of the answers will be used. a) uracil b) cytoplasm c) protein d) thymine e) carbohydrate f) sugar–phosphate units g) cell wall h) transcription i) glycogen j) lipid k) central dogma l) phagocytosis m) endoplasmic reticulum n) translation o)...

Fire Officer I EXAM LATEST ACTUAL EXAM QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+ What are the 5 types of building construction? - CORRECT ANSWER Type 1- fire resistive Type 2- non combustible Type 3- ordinary Type 4- heavy timber Type 5- wood frame -Type 1 and 2 are non combustible -Type 3, 4, and 5 are combustible Fire drills in schools - CORRECT ANSWER Done monthly, different times of day Rough drawing of building is called - CORRECT ANSWER Field s...