IDENTIFY TEST PROCESS SYMBOLS AND DIAGRAMS
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What is the compression ratio for a small gas engine?
a. 4:1 c. 2:1 b. 5:1 d. 6:1
Answer the following statement(s) true (T) or false (F)
1. The magnetic switch is called a motor starter if it has overload protection. 2. Referring to the various types of rotor construction and associated code letters, code letter A has high starting torque and relatively low starting current. 3. The National Electrical Code® requires the use of two overload units as running-overload protection Table 430.37. 4. In the case of 125% or 115% overload thermal protection, the Code does allow the electrical personnel to increase the ratings if the original selection does not allow the motor to operate. 5. To reverse the direction of rotation of three-phase motors, interchange any three of the four line lead connections to the motor terminals.
During normal engine operation if a DPF does not get hot enough to burn off the collected soot inside of it, it will need to:
a. perform an active regeneration b. perform a passive regeneration c. perform a reverse flow regeneration d. be removed for thorough cleaning
A transistor is controlled by the polarity and current at the ________
A) Base B) Collector C) Emitter D) Both A and B