Spark Plug MCQ

Test your knowledge with important Spark Plug MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Spark Plug MCQs at Bissoy

• Which of the following spark plug increases the resistance to increase the voltage required to jump across the spark plug gap?
  ক

  Rheostat spark plug

  খ

  Wire wound spark plug

  গ

  MOSFET spark plug

  ঘ

  Resistor spark plug
• Due to which of the following there are carbon deposits on the spark plug?
  ক

  Overheating of plug

  খ

  Burning of fuel on the plug

  গ

  Erosion of electrodes

  ঘ

  Engine speed
• Which among the following is not a requirement of a spark plug?
  ক

  Very high resistance to current leakage

  খ

  Contacts must close without bounce

  গ

  Resistance to corrosion

  ঘ

  Gas tightness
• Which of the following does not affect overheating?
  ক

  Weak mixture

  খ

  Defective cooling system

  গ

  Loose-fitting

  ঘ

  Engine speed
• How is the frequency of firing in a two-stroke concerning the value of four-stroke engines?
  ক

  Same as the value of four-stroke

  খ

  Twice the value of four-stroke

  গ

  Has no relationship with four-stroke

  ঘ

  Four times the value of four-stroke
• Which of the following material is used to fill the space between the plug electrodes in a surface discharge plug?
  ক

  Semiconductor

  খ

  Plastic

  গ

  Rubber

  ঘ

  Wood
• What is the correct range of gap size in the millimeter of a spark plug?
  ক

  0.35-0.45

  খ

  0.6-0.1

  গ

  1-2

  ঘ

  2-4
• Which of the following is.used as a material for the ground electrode of the spark plug?
  ক

  Nickel

  খ

  Cast iron

  গ

  Brass

  ঘ

  Bronze
• Which of the following is used as a material for the body shell of the spark plug?
  ক

  Low carbon steel

  খ

  Ceramic

  গ

  Paper

  ঘ

  Wood
• What is the function of the sealing between the insulator and the body shell?
  ক

  Prevents the hot gas from leaking

  খ

  Prevents the pressure increase

  গ

  Prevents the temperature increase

  ঘ

  Prevents Current leakage
• Which of the following is not the main part of a spark plug?
  ক

  The center electrode

  খ

  The ground electrode

  গ

  Distributor cap

  ঘ

  The insulator
• Which of the following is the hottest part of the spark plug?
  ক

  Terminal

  খ

  Insulator tip

  গ

  Shell

  ঘ

  Gasket