Hydrocarbons in the air can be analyzed by mixing an air sample with a fuel and then burning the mixture. When the mixture burns, _____
A) heat is produced in proportion to the hydrocarbons present
B) ions are produced according to the amount of hydrocarbons present
C) the flame produces different colors based on the hydrocarbons present
D) the orange flame turns blue if hydrocarbons are present
B
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All of the following are approved methods for diagnosing an ECT (engine coolant temperature) sensor EXCEPT ________
A) Observing resistance values at a specified temperature B) Substituting a variable resistor C) Digital multimeter (DMM) D) Scan tool
What is the inductance of a 20 mH inductor connected in parallel with a 50 mH inductor?
A) 50 mH B) 20 mH C) 14.3 mH D) 70 mH
When material bends, there is ____ on the inside of the bend and ____ on the outside.
A. stretching, compression B. compression; bending C. compression; stretching D. bending; stretching E. none of the above
The ____ in a parallel circuit remains constant across each individual branch.
A. resistance B. inductance C. capacitance D. voltage