Parallel resistors - Study guides, Class notes & Summaries

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...

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 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 ...

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 ___________...

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? - ...

When testing a water level supervisory switch serving a pressure tank a signal shall indicate if the water level _____________from the required level (NFPA 72, Table 14.4.3.2 17 (j) (4) - rises or falls over 3 inches If combination audible/visible appliances are installed the location of the installed appliance shall be determined by the requirements of _______. (Nfpa 72 18.4.8.1) - the visible appliance What is the maximum number of 12 gauge THHN wires that can be installed in 1...

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

HVAC Electrical Test Questions and Answers Rated A+ Current flow is the flow of electrons in the circuit impedance is opposition to alternating current flow like charges repel each other Any material that will readily release electrons is called a conductor the symbol for current is I Which of the following materials would best be suited for use as a semi-conductor silicone the safety ground conductor is usually color coded black (or bare or green & yellow stripe) An e...