Electrolysis & Storage Of Batteries(Electrical Engineering Questions ) Questions and Answers

Question 1. In alkaline cell the electrolyte is_____________?
  1.    dilute sulphuric acid
  2.    concentrated sulphuric acid
  3.    NaOH
  4.    KOH
Explanation:-
Answer: Option D. -> KOH
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 2. Which of the following factors adversely affects the capacity of the leadacid battery ?
  1.    Temperature of surroundings
  2.    Specific gravity of electrolyte
  3.    Rate of discharge
  4.    All of the above
Explanation:-
Answer: Option D. -> All of the above
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3. In a lead-acid battery the energy is stored in the form of___________?
  1.    charged ions
  2.    chemical energy
  3.    electrostatic energy
  4.    electromagnetic energy
Explanation:-
Answer: Option B. -> chemical energy
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 4. A typical output of a solar cell is_____________?
  1.    0.1V
  2.    0.26 V
  3.    1.1 V
  4.    2 V
Explanation:-
Answer: Option B. -> 0.26 V
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 5. Satellite power requirement is provided through________?
  1.    solar cells
  2.    dry cells
  3.    nickel-cadmium cells
  4.    lead-acid batteries
Explanation:-
Answer: Option A. -> solar cells
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 6. Which among the following constitutes the major load for an automobile battery _________?
  1.    Brake light
  2.    Self starter
  3.    Parking lights
  4.    Spark plugs
Explanation:-
Answer: Option B. -> Self starter
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 7. Cells are connected in parallel to__________?
  1.    increase the efficiency
  2.    increase the current capacity
  3.    increase the voltage output
  4.    increase the internal resistance
Explanation:-
Answer: Option B. -> increase the current capacity
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 8. Under normal charging rate, the charging current should be__________?
  1.    10% of capacity
  2.    20% of capacity
  3.    30% of capacity
  4.    40% of capacity
Explanation:-
Answer: Option A. -> 10% of capacity
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 9. When the load resistance equals the generator resistance which of the following will be maximum __________?
  1.    Current
  2.    Efficiency of the circuit
  3.    Power in the load resistance
  4.    Voltage across the load resistance
Explanation:-
Answer: Option C. -> Power in the load resistance
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 10. A constant-voltage generator has___________?
  1.    minimum efficiency
  2.    minimum current capacity
  3.    low internal resistance
  4.    high internal resistance
Explanation:-
Answer: Option C. -> low internal resistance
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
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