A synchronous motor - Study guides, Class notes & Summaries

BU2: Electrical and Mechanical Systems (AUSAT) | Latest Update | 2024/2025 | Rated A+ What is the main function of a transformer in an electrical system? A transformer is used to change the voltage levels in an electrical system, either stepping it up or stepping it down, depending on the needs of the circuit. How is electrical power typically transmitted over long distances? Electrical power is transmitted over long distances using high-voltage transmission lines to minimize ene...

Stationary Engineer Electric Exam Questions and Answers Latest 2024/2025 (Graded) 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 co...

Which article of the NEC covers grounding? Article 250 What is a dropout plate? Metal plate with a curve surface for cable to follow as it passes from the tray All of the following are common service voltages in the United States Except: 372/575 3- Phase, 4-wire What does a GFCI breaker do? Opens a circuit to prevent operation of an electrical device What will happen when one or more coils in a winding are grounded? The motor will automatically blow fuses eight incandescent lighting fix...

where do we use stays on a fire-tube boiler? A) at the top of the boiler b)outside of the boiler to mounting brackets c) in the steam space of the boiler d)between the tubes - ANSWER C vanstone flange held in place? A)screwed fittings B)loosely C) threaded d)star pattern - ANSWER B effiency of electrostatic precipitator? a) 84% b)92.9% c)98.9% d)99.9% - ANSWER D what is aluminum made from? 1)pig iron 2)aluxes 3)bauxite 4)copper - ANSWER 3 what is a class C fire? a)el...

If the potential difference across the coil is low, the coil will: A-draw too much current B-become too hot C-Produce too much magnetic force D-not heat up D-not heat up The NEC identifies environments that contain flammable vapors and gases as which class of hazardous location? A-Class I B-Class II C-Class III D-Class IV A-Class I Which of the following reduces high voltages and currents to save values for measurements? A-auto transformer B-megohmmeter C-instrument transf...

4 A ABSA Questions Correctly Answered To Score A+!! where do we use stays on a fire-tube boiler? A) at the top of the boiler b)outside of the boiler to mounting brackets c) in the steam space of the boiler d)between the tubes C vanstone flange held in place? A)screwed fittings B)loosely C) threaded d)star pattern B effiency of electrostatic precipitator? a) 84% b)92.9% c)98.9% d)99.9% D what is aluminum made from? 1)pig iron 2)aluxes 3)bauxite 4)copper 3 ...

The electrical NCCER test Questions and Answers 100% Accurate Which Article of the NEC covers grounding? article 250 Which of the following is a 90 degree, explosion proof fitting? GUAL What is a dropout plate? Metal plate with a curved surface for cable to follow as it passes from the tray All of the following are common service voltages in the United States EXCEPT: 372/575 3-PHASE, 4-WIRE What does a GFCI breaker do? Opens a circuit to prevent operation of an ...

Stationary Engineer Electric Exam Questions With 100% 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 - answercurrent lags the voltage The power factor of a load is equal to the ____________ power divided by the ____________ power. - answerTrue ; apparent A 10-ohms and 20-ohms resistor are connected in parallel. The total line current drawn by this parallel combination is ...

Electrician NCCER Questions and Answers Already Passed Which article of the NEC covers grounding? - Answer ️️ -Article 250 What is a dropout plate? - Answer ️️ -Metal plate with a curve surface for cable to follow as it passes from the tray All of the following are common service voltages in the United States Except: - Answer ️️ - 372/575 3-Phase, 4-wire What does a GFCI breaker do? - Answer ️️ -Opens a circuit to prevent operation of an electrical device What will happe...

Stationary Engineer Electric Exam Questions With 100% 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 - answercurrent lags the voltage The power factor of a load is equal to the ____________ power divided by the ____________ power. - answerTrue ; apparent A 10-ohms and 20-ohms resistor are connected in parallel. The total line current drawn by this parallel combination is ...