Answer the following statement(s) true (T) or false (F)
1. Almost all ignition systems used in power equipment engines fire the spark plug once per revolution of the crankshaft.
2. The sole purpose of an ignition system is to provide a spark that will ignite the air–fuel mixture in the combustion chamber.
3. High-tension magneto ignition systems are commonly used in power equipment engines.
4. The breaker points in both the high- and low-tension magneto ignition systems are connected in series with the primary circuit
5. The current-carrying wire is always pulled toward the side having the stronger magnetic field.
1. True
2. True
3. False
4. True
5. False
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Hard hats should be inspected _______________________ for damage.
A. daily B. weekly C. monthly D. every six months
Technician A says that one planetary gear set can provide gear reduction, overdrive, and reverse. Technician B says that most transmissions today use compound (multiple) planetary gear sets. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
Draw the top, the front, and the right side orthographic views of the objects shown. Indicate when an object needs only one or two views to be fully described.
Answer the following statement(s) true (T) or false (F)
1. An operational amplifier can be used as an oscillator. 2. The operational amplifier circuit depends on a slight imbalance in the op amp or random circuit noise to start the oscillator. 3. A voltage difference of only a few hundred millivolts is all that is needed to make the output of the amplifier go high or low. 4. If the oscilloscope is connected to a pulse generator, the positive pulse is much longer than the negative pulse. 5. The 741 operational amplifier can easily be changed from a square-wave oscillator to a pulse generator.