Parallel resistors - Study guides, Class notes & Summaries

When testing a water level supervisory switch serving a pressure tank a signal shall indicate if the water level _____________from the required level - PRECISE ANSWER rises or falls over 3 inches (NFPA 72, Table 14.4.3.2 17 (j) (4) If combination audible/visible appliances are installed the location of the installed appliance shall be determined by the requirements of - PRECISE ANSWER the visible appliance (Nfpa 72 18.4.8.1) What is the maximum number of 12 gauge THHN wires that can be ins...

Stationary Engineer Electric Pre Test Questions And Answers An AC circuit consists only of a pure inductance and a power source. The relationship between the voltage and the current in this circuit is that the - ANSWER : current lags the voltage The power factor of a load is equal to the ____________ power divided by the ____________ power. - ANSWER : True ; apparent A 10-ohms and 20-ohms resistor are connected in parallel. The total line current drawn by this parallel combination i...

Stationary Engineer Electric Pre Test Questions And Answers An AC circuit consists only of a pure inductance and a power source. The relationship between the voltage and the current in this circuit is that the - ANSWER : current lags the voltage The power factor of a load is equal to the ____________ power divided by the ____________ power. - ANSWER : True ; apparent A 10-ohms and 20-ohms resistor are connected in parallel. The total line current drawn by this parallel combination i...

HVAC Electrical Final Test Questions and Answers Graded A+ Split-phase motor PSC CSCR Shaded pole motor Resistance reading to ground from the terminal of a good compressor CSR Best starting and running single-phase compressor A. Uses a start and run winding B. Uses a run capacitor C. Uses a run capacitor, start capacitor, and potential relay D. Simplest motor E. 3 megohms F.Only uses a start capacitor G. CSCR motor How much resistance will be measured...

An AC circuit consists only of a pure inductance and a power source. The relationship between the voltage and the current in this circuit is that the correct answers current lags the voltage The power factor of a load is equal to the ____________ power divided by the ____________ power. correct answers True ; apparent A 10-ohms and 20-ohms resistor are connected in parallel. The total line current drawn by this parallel combination is 30 amps. Under these conditions, the line voltage will ...

Stationary Engineer Electric Test Questions And Correct Answers An AC circuit consists only of a pure inductance and a power source. The relationship between the voltage and the current in this circuit is that the - ANSWER : current lags the voltage The power factor of a load is equal to the ____________ power divided by the ____________ power. - ANSWER : True ; apparent A 10-ohms and 20-ohms resistor are connected in parallel. The total line current drawn by this parallel combina...

An AC circuit consists only of a pure inductance and a power source. The relationship between the voltage and the current in this circuit is that the - ANSWER current lags the voltage The power factor of a load is equal to the ____________ power divided by the ____________ power. - ANSWER True ; apparent A 10-ohms and 20-ohms resistor are connected in parallel. The total line current drawn by this parallel combination is 30 amps. Under these conditions, the line voltage will be ___________...

If two 10-ohm resistors are connected in series, what is the total resistance of these resistors? - ANSWER20 ohms In a split-phase motor, how much greater is the starting current when compared to the full-load current? - ANSWER6 to 8 times The terminals of a motor can be identified using a battery and a ___ - ANSWERvoltmeter A 5-ohm and a 20-ohm resistor are connected in parallel. What is the total resistance of these two resistors? - ANSWER4 ohms The normal location to provide overcurrent p...

What is electricity? - Flow of electrons between atoms in common wire material or load What is current flow? - Electrons flow What creates a magnetic field in a conductor? - Current flow What is voltage? - Electrical pressure that pushes current flow What is the difference between a conductor and an insulator? - A conductor allows current flow. What are the two common types of electricity? - Direct current and alternating current What is control voltage? - ...

Aviation Mechanic General "Basic Electricity" Questions and Answers Already Passed Why is alternating current (AC) more commonly used for power distribution than direct current (DC)? AC can be easily transformed to higher or lower voltages, making it more efficient for long- distance transmission. What effect does temperature have on the resistance of a conductor? As temperature increases, the resistance of a conductor typically increases. What does it mean when a circui...