SGE chapter 6 Questions with Detailed Verified Answers
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the primary purpose of the ignition system of a small gas engine is to
provide sufficient electrical voltage to discharge:
Ans: a spark between the electrodes of the spark plug
the ignition system must be capable of producing as much as ____ volts to
force the electrical current across the plug gap
Ans: 30,000
A single cylinder, four cycle engine running at 3000 rpm requires ____
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ignition sparks per minute, or ___ sparks per second
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Ans: 1500, 25
three types of magnetos in use on small gas engines
Ans: Mechanical breaker ignition system
Capacitive discharge ignition system
transistor controlled ingition system
electrons travel in ___ around the center of an atom
Ans: orbits
electrons have ___ electrical charges, and protons have ___ electrical
chargess
Ans: negative, positive
neutrons and protons make up the ____ of an atom
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Ans: nucleus
In any atom, the electrons are equal in number to the ___
Ans: protons
Explain why electrons do not collide with one another
Ans: bc their similarily negative charges repel eachother
electrons tend to stay in orbits due to their attraction by
Ans: positively charged protons
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Three ways in which an electrical potential is produced and give an
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example of each one
Ans: Mechanically (Ex: electrical generator)
Chemically (Ex: Batteries)
Statically (Ex: lightning bolt)
electrical units
Ans: Force that causes electrons to flow = volts
rate of electron flow = amperes
Resistance to electron flow = ohms