Briefly describe the effects of a reduction of a load on the speed of a DC series motor.
What will be an ideal response?
If the motor is running with a mechanical load and the load is suddenly reduced, the motor speed increases. The increase in speed creates more CEMF in the armature, and the circuit current is reduced. The circuit current is the same current in both the stator field and the rotor field, therefore squaring the effect of the current reduction. The torque that is produced drops off dramatically.
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____________________ programming means that the program is being developed without being connected to the process or driven equipment.
Fill in the blank(s) with the appropriate word(s).
Is angle C a right angle or a straight angle?
What will be an ideal response?
The ideal air-fuel mixture for a gasoline engine is _____.
A. 13.5:1 B. 16:1 C. 10.5:1 D. 14.7:1
What is the difference in height between Corner #3 and #4?
What will be an ideal response?