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LHB TL & AC MCQ (136-150)
  1.  What is method adopted to keep the cells Voltage in uniform condition?
  1. Boost charging
  2. Normal charging
  3. Equalizing charging
  4. Trickle charging
Show Answer
Correct Answer » Equalizing charging

 

  1.   What are the means of Boost charging and with what capacity charging is done?
  1. 1/2th of rated current for 5 Hours
  2. Higher rate for short period @ 2.25 V/cell
  3. Rated current for 1 hour
  4. None of the above
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Correct Answer » Higher rate for short period @ 2.25 V/cell

 

  1.  What is the charging current for boost charging?
  1. 1.5 X normal charge rate
  2. 2 times the normal current
  3. 2.5 times the normal current
  4. 3 times the normal current
Show Answer
Correct Answer » 1.5 X normal charge rate

 

  1.  What is the voltage per cell maintained for float charging?
  1. 1.8 V/cell at constant potential mode
  2. 2.0V/cell at constant potential mode
  3. 2.2V/cell at constant potential mode
  4. 2.4V/cell at constant potential mode
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Correct Answer » 2.4V/cell at constant potential mode
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  1.  What is the capacity of the battery is expressed in?
  1. Ampere hours
  2. Watts
  3. Watt -Hours
  4. Horse Power
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Correct Answer » Ampere hours

 

  1.  What are the modes of charging a Lead Acid Battery?
  1. Constant potential mode
  2. Constant current mode
  3. Both A&B
  4. None of the above
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Correct Answer »
  1. Constant potential mode
  2. Constant current mode

 

  1.  What is the full form of VRLA?
  1. Valve Regulated Lead Acid Cell
  2. Valve released lead Acid Cell
  3. Valve Regulated Low Acid Cell
  4. None of the above
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Correct Answer » Valve Regulated Lead Acid Cell

 

  1.  What is the working principle of the VRLA battery?
  1. Pressure release
  2. Hydrogen recombination
  3. Oxygen recombination
  4. None of the above
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Correct Answer » Oxygen recombination

 

  1.  What else is a VRLA battery called?
  1. Maintenance-free batteries
  2. Sealed maintenance-free (SMF) Cell
  3. Sealed Cell
  4. None of the above
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Correct Answer » Sealed maintenance-free (SMF) Cell

 

  1.  To increase the voltage of the battery, cells are connected in
  1. Series
  2. Parallel
  3. Series/Parallel
  4. None of the above
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Correct Answer » Series

 

  1.   What is the main purpose for providing the battery bank?
  1. Alternator Voltage is fluctuating
  2. Supply to the coach in case of feeder supply failure.
  3. Battery Voltage is constant
  4. None of the above
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Correct Answer »  Supply to the coach in case of feeder supply failure.

 

  1.  What is the applied with cell connecter to prevent sulphation?
  1. Paint
  2. Kerosene
  3. Grease
  4. Petroleum jelly
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Correct Answer » Petroleum jelly

 

  1.  What is the method of charging recommended for VRLA batteries?
  1. Constant current
  2. Constant voltage
  3. Constant Voltage Constant Current
  4. None of the above
Show Answer
Correct Answer » Constant Voltage Constant Current

 

  1.  What is the open-circuit voltage of the battery bank used for AC Coaches with VRLA battery?
  1. 100 V
  2. 105 V
  3. 115V
  4. 130 V
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Correct Answer » 115V

 

  1.  What is the Speed potential of a power car coach?
  1. 140 kmph.
  2. 160 kmph.
  3. 180 kmph.
  4. 200 kmph.
Show Answer
Correct Answer » 160 kmph.
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LHB TL & AC MCQS
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