Which of the following conditions will cause a DC series motor to develop into a runaway condition?
A. the armature coil opens
B. the field coil opens
C. the physical load which it drives becomes disconnected
D. all of the above
Answer: C
You might also like to view...
The features of older horses are a little like those of older people. The sides of the face become more depressed, the poll more prominent, and the hollows above the eyes become ____________________.
Fill in the blank(s) with the appropriate word(s).
When planning a vegetable garden, the soil should have a pH range of _____
A) 5.3 to 7.0 B) 6.3 to 7.3 C) 6.3 to 7.0 D) 6.0 to 7.3
Two technicians are discussing anti-theft systems. Technician A says that some systems require a special key. Technician B says that some systems use a computer chip in the key. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Carry the answer to two decimal places. Find dimension A in millimeters.
Fill in the blank(s) with the appropriate word(s).