A Quiz About Three Phase Generator

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AdewumiKoju
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    What is the frequency of a three-phase generator rotating at 3600rpm?

    • 56 Hz
    • 60 Hz
    • 45 Hz
    • 90 Hz
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About This Quiz

Three phase generators are machines powered by fuel and used in manufacturing plants and factories. They are greatly preferred to smaller generators because they supply three simultaneous alternating currents. Additionally, three-phase generators are known to be more durable, stronger, convertible, and efficient. Are you familiar with this kind of machine?

A Quiz About Three Phase Generator - Quiz

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  • 2. 

    What is used to power three-phase generators?

    • Petrol

    • Coal

    • Diesel

    • Biofuel 

    Correct Answer
    A. Diesel
    Explanation
    Three-phase generators are typically powered by diesel fuel. Diesel engines are commonly used in industrial applications because they are efficient, reliable, and have a high power output. Diesel fuel is also readily available and has a longer shelf life compared to other fuels. Additionally, diesel engines can operate for longer durations without overheating, making them suitable for continuous use in generators.

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  • 3. 
    What part of a three-phase generator starts the engine? - ProProfs

    What part of a three-phase generator starts the engine?

    • Piston 

    • Electric motor 

    • Ignition system

    • Connection shaft

    Correct Answer
    A. Ignition system
    Explanation
    The ignition system is responsible for starting the engine in a three-phase generator. It provides the spark needed to ignite the fuel-air mixture in the engine's cylinders, initiating the combustion process and starting the engine. Without the ignition system, the engine would not be able to start and the generator would not be able to produce electricity.

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  • 4. 
    Which of these is not a basis for which three-phase generators are rated? - ProProfs

    Which of these is not a basis for which three-phase generators are rated?

    • Voltage

    • Power

    • Frequency

    • Efficiency

    Correct Answer
    A. Efficiency
    Explanation
    Efficiency is not a basis for which three-phase generators are rated. Three-phase generators are typically rated based on factors such as voltage, power, and frequency. Efficiency is a measure of how effectively a generator converts input power into useful output power, but it is not directly used as a basis for rating the generator.

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  • 5. 
    What gas does three-phase generators produce? - ProProfs

    What gas does three-phase generators produce?

    • Carbon dioxide 

    • Carbon monoxide 

    • Hydrogen sulphide 

    • Nitrogen oxide 

    Correct Answer
    A. Carbon monoxide 
    Explanation
    Three-phase generators produce carbon monoxide gas. Carbon monoxide is a colorless and odorless gas that is produced when fuel, such as gasoline or diesel, is burned incompletely. It is a toxic gas that can be harmful or even fatal when inhaled in high concentrations. Carbon monoxide is often produced by generators as a byproduct of their combustion process. It is important to ensure proper ventilation when using generators to prevent the buildup of carbon monoxide gas.

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  • 6. 
    What is the reciprocating engine in three-phase generators? - ProProfs

    What is the reciprocating engine in three-phase generators?

    • Fossil engine 

    • Piston engine

    • Inverter engine

    • Heat engine

    Correct Answer
    A. Piston engine
    Explanation
    A reciprocating engine is a type of engine that converts linear motion of a piston into rotational motion. In the context of three-phase generators, a piston engine is commonly used. This type of engine utilizes pistons that move back and forth within cylinders to convert the energy of fuel combustion into mechanical energy. The reciprocating motion of the pistons drives a crankshaft, which in turn rotates the generator's rotor to produce electrical power. Therefore, a piston engine is the correct answer for the reciprocating engine in three-phase generators.

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  • 7. 
    What is the minimum amount of electricity three-phase generators produce? - ProProfs

    What is the minimum amount of electricity three-phase generators produce?

    • 5 kVA

    • 10 kVA

    • 2 kVA

    • 12 kVA

    Correct Answer
    A. 5 kVA
    Explanation
    The minimum amount of electricity that three-phase generators produce is 5 kVA. This is the smallest power rating among the given options. It is important to note that kVA (kilovolt-ampere) is a unit used to measure apparent power, which is the combination of real power (measured in kilowatts) and reactive power.

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  • 8. 
    Which of these is not part of a three-phase generator? - ProProfs

    Which of these is not part of a three-phase generator?

    • Electric motor 

    • Circuit breaker 

    • Fuel tank

    • Compressor

    Correct Answer
    A. Compressor
    Explanation
    A three-phase generator is a device that generates electrical power by converting mechanical energy into electrical energy. It consists of various components such as an electric motor, circuit breaker, fuel tank, and compressor. However, a compressor is not part of a three-phase generator. A compressor is typically used to increase the pressure of a gas or air, whereas a generator is specifically designed to produce electricity. Therefore, a compressor does not play a role in the generation of electrical power in a three-phase generator.

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  • 9. 
    What part of three-phase generators drives the motor? - ProProfs

    What part of three-phase generators drives the motor?

    • Engine

    • Shaft

    • Piston

    • Ignition system

    Correct Answer
    A. Engine
    Explanation
    The engine is the part of a three-phase generator that drives the motor. The engine is responsible for converting fuel into mechanical energy, which is then used to rotate the shaft of the generator. This rotation creates the necessary magnetic field that induces the three-phase current in the stator windings, ultimately driving the motor. The engine is the power source of the generator and provides the necessary force to generate electricity.

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  • 10. 
    Which of these is not used as engines for three-phase generators? - ProProfs

    Which of these is not used as engines for three-phase generators?

    • Steam engine

    • Turbine

    • Rollers 

    • Motor engine

    Correct Answer
    A. Motor engine
    Explanation
    A motor engine is not used as an engine for three-phase generators. Three-phase generators typically use steam engines, turbines, or rollers as engines to generate electricity. Motor engines, on the other hand, are typically used to convert electrical energy into mechanical energy, such as in cars or other machinery. Therefore, a motor engine does not fit the criteria of being used as an engine for three-phase generators.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 19, 2019
    Quiz Created by
    AdewumiKoju
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