Battery Maintenance MCQ Quiz Questions With Answers

50 Questions | Total Attempts: 31

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Battery Maintenance MCQ Quiz Questions With Answers - Quiz

In this quiz, you'll be able to learn about various important battery maintenance MCQ questions with answers. So, if you're looking for a practice set of questions on cells, lead-acid batteries, and turbochargers, you should definitely play this quiz. Do you know batteries should be kept clean and corrosion-free at all times to work efficiently? Many other things should be done to maintain the lifetime of a battery. Do you know what those are? Take this quiz and get to know about them.


Questions and Answers
  • 1. 
    When servicing lead acid batteries, what precautions must be taken?
    • A. 

      Wear PPE

    • B. 

      Remove metal jewelry

    • C. 

      Ensure neutralizing agent is available

    • D. 

      All of the above

  • 2. 
    What is used to measure the specific gravity of a lead acid battery cell?
    • A. 

      Thermometer

    • B. 

      Anemometer

    • C. 

      Barometer

    • D. 

      Hydrometer

  • 3. 
    During servicing of a lead acid battery you notice that it has a low electrolyte level. What should you add to the battery to top up the electrolyte level?
    • A. 

      Distilled water

    • B. 

      Sulphuric acid

    • C. 

      Tap water

    • D. 

      Boric acid

  • 4. 
    What is used to neutralize a spilled electrolyte from a lead acid battery?
    • A. 

      Boric acid

    • B. 

      Water

    • C. 

      Baking soda

    • D. 

      Sulfuric acid

  • 5. 
    What electrolyte is used in lead acid batteries?
    • A. 

      Boric acid

    • B. 

      Potassium hydroxide

    • C. 

      Sulfuric acid

    • D. 

      Distilled water

  • 6. 
    What is a benefit of NiCad batteries compared to Lead Acid Batteries?
    • A. 

      NiCad batteries are not susceptible to thermal runaway

    • B. 

      NiCad batteries maintain an almost constant voltage throughout discharge

    • C. 

      NiCad batteries require fewer cells for the same voltage

    • D. 

      NiCad electrolyte is less corrosive & dangerous than Lead Acid electrolyte

  • 7. 
    What is the required next step if a NiCad battery fails its capacity check?
    • A. 

      Deep cycle

    • B. 

      Tag serviceable & place on shelf

    • C. 

      Recharge

    • D. 

      Tag unserviceable & scrap

  • 8. 
    What is used to neutralize a spilled electrolyte from a Nicad battery?
    • A. 

      Boric acid

    • B. 

      Water

    • C. 

      Baking soda

    • D. 

      Sulfuric acid

  • 9. 
    What electrolyte is used in NiCad batteries?
    • A. 

      Boric acid

    • B. 

      Potassium hydroxide

    • C. 

      Sulfuric acid

    • D. 

      Sodium bicarbonate

  • 10. 
    What happens to the specific gravity of a NiCad cell during discharge?
    • A. 

      Decreases

    • B. 

      Increases

    • C. 

      Remains constant

    • D. 

      Drops to zero

  • 11. 
    What will happen to the performance of a sea level boosted engine once it is above its critical altitude?
    • A. 

      Nothing

    • B. 

      The engine will overspeed and overheat

    • C. 

      Performance (horsepower) will drop

    • D. 

      Performance (horsepower) will rise

  • 12. 
    Where will the exhaust gasses enter a turbocharger?
    • A. 

      Through the circular plenum around the outside of the turbine

    • B. 

      Through the center of the turbine

    • C. 

      Through the circular plenum around the outside of the compressor

    • D. 

      Through the center of the compressor

  • 13. 
    What is often used to protect the engine from excessive turbocharger “boost”?
    • A. 

      A bypass valve which will redirect some of the turbocharger exhaust into the inlet

    • B. 

      A bypass valve valve which will redirect some of the turbochargers to the inlet

    • C. 

      A back-pressure sensing thermal compensating

    • D. 

      A pressure relief valve, set 1.5 - 2” of Hg above max specified boot

  • 14. 
    Which of the following is not a use for a turbocharger on an aircraft piston engine?
    • A. 

      To increase sea level horsepower

    • B. 

      To provide air for cabin pressurization

    • C. 

      To create a pressure source to drive instruments and the de-ice

    • D. 

      To maintain sea level horse to a critical altitude

  • 15. 
    What is the purpose of a sea level boosted engine?
    • A. 

      To maintain sea level performance above the critical altitude

    • B. 

      To maintain sea level performance up to the critical altitude

    • C. 

      To maintain sea level performance below sea level

    • D. 

      To maintain sea level performance up to the aircraft’s service

  • 16. 
    What is the source of “muscle” pressure that drives the waste gate actuator towards the closed position?
    • A. 

      Hydraulic pressure

    • B. 

      Oil pressure from the EDP

    • C. 

      Fuel pressure from the EDP

    • D. 

      Turbocharger compressor discharge pressure

  • 17. 
    When does the density controller control the turbocharger?
    • A. 

      At full throttle

    • B. 

      At idle

    • C. 

      It does not, that is the job of the differential pressure

    • D. 

      At all throttle settings

  • 18. 
    What is the compressor discharge pressure of a turbocharger also called?
    • A. 

      Upper deck pressure

    • B. 

      Exhaust back pressure

    • C. 

      Exhaust gas pressure

    • D. 

      Manifold pressure

  • 19. 
    How is the speed of the compressor controlled in a turbocharger system?
    • A. 

      By controlling the flow of air into the compressor

    • B. 

      By controlling the flow of air our of the turbine

    • C. 

      By controlling the flow of air out of the compressor

    • D. 

      By controlling the flow of air into the turbine

  • 20. 
    What is used to turn the compressor of a turbocharger?
    • A. 

      The compressor will be turned by the crankshaft

    • B. 

      Intake gasses passing through a turbine will turn the compressor 

    • C. 

      The compressor will be turned by the propeller gearbox

    • D. 

      Exhaust gasses passing through a turbine will turn the compressor

  • 21. 
     An aircraft type certificate data sheet identifies that the empty weight centre of gravity (EWCG) range is between FS 47 and FS 53. A mechanic establishes that the actual EWCG is located at FS 47.2. Which of the following statements is correct?
    • A. 

      The aircraft must be reweighted at every annual inspection to ensure that the EWCG is still within range.

    • B. 

      The aircraft centre of gravity will always be between the forward at C of G range limits for all legal loading conditions

    • C. 

      Ballast is required at the nose of the aircraft

    • D. 

      Ballast is required in the tail of the aircraft

  • 22. 
    Which of the following describes useful load?
    • A. 

      Maximum takeoff weight minus fuel used during flight

    • B. 

      Another name for payload

    • C. 

      Maximum takeoff weight minus basic empty weight

    • D. 

      Basic empty weight plus usable fuel

  • 23. 
    What are the consequences of an aircraft operating with a centre of gravity that is too far forward?
    • A. 

      Lower stall speed

    • B. 

      Better spin characteristics

    • C. 

      Improved pitch stability

    • D. 

      Longer takeoff distance

  • 24. 
    Choose the statement that describes the datum from the following
    • A. 

      Butt Line (BL) 0.0

    • B. 

      An imaginary line down the centre-line of the aircraft, established by the manufacturer, used exclusively for weight and balance computations

    • C. 

      Fuselage Station (FS) 0.0

    • D. 

      An imaginary reference line used to identify wing stations

  • 25. 
    How is aircraft empty weight determined?
    • A. 

      Maximum takeoff weight minus fuel used during the flight

    • B. 

      Net weight plus unusable fuel

    • C. 

      Scale weight minus tare weight

    • D. 

      Scale weight plus tare weight

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