Explain how the heat range of a spark plug is determined.
What will be an ideal response?
The heat range of a spark plug is determined by the length of the insulator before it contacts the shell. In a cold plug there is a short distance for the heat to travel up to the insulator to the shell. The short heat path means the electrode and insulator will maintain little heat between firings.
You might also like to view...
If the tungsten electrode touches the filler metal during welding, the welder must _____
a. remove and clean the electrode b. discard the electrode c. increase the push angle d. touch the electrode to the weld puddle
What is the curing agent (that is, the material that initiates the reaction) for cyanoacrylates?
What will be an ideal response?
The bubble point temperature represents the temperature at which the __________ will appear in high pressure, high temperature liquid refrigerant. The bubble point temperature is used to calculate and determine the condenser __________.
What will be an ideal response?
Three fuel gases other than acetylene used for cutting include _____
a. argon, oxygen, and helium b. methane, butane, and oxygen c. natural gas, propylene, and propane d. benzene, halon, and fluorine