An _ in a series circuit causes current flow to stop
open
A___ in a series circuit produces heater than normal current.
short
1/19
Name | Mastery | Learn | Test | Matching | Spaced |
---|
No study sessions yet.
An _ in a series circuit causes current flow to stop
open
A___ in a series circuit produces heater than normal current.
short
A shorted circuit may eventually produce an _ by blowing (opening) the fuse , burning out a circuit component , or tripping the circuit breaker
open circuit
_ is the process of locating causes of malfunctions or troubles in a circuit
troubleshooting
AC motors have a number of advantages over DC motors , the main ones being less arcing at____ , _______ , and ___
higher altitude , smaller size , lighter weight
Induction motors have a rotor that is called the ___
Squirrel cage
The synchronous speed of an induction motor is the speed at which the magnetic field rotates, and it depends upon the number of for which the stator is wound _____and the __ of the applied voltage
poles , frequency
The _ of the volt meter is so high that only small current flow is in the circuit
resistance
Troubleshooting a parallel DC circuit for a shorted component should be accomplished with an ___
ohmeter
A short in the series part of a series parallel circuit will cause a ___ in total resistance which will cause total current to __
decrease, increase
The most commonly used reversible type motor in aircraft is
reversible series
To reverse the direction of rotation in a DC motor
Reverse the direction of current in the armature windings or the field windings
A cumulative compound motor has both a series field and a shunt field. The purpose of the shunt field is to
Prevent the motor from running away under a no-load condition
Looking at figure 7-19-19, which of the following statements is true?
R2 becoming short-circuited would cause the fuse to blow
For all induction motors , the principle of operation is a
Rotating magnetic field
The squirrel cage rotor in an induction motor has a speed of rotation determined by
Both A and B
If a transformer winding is completely short circuited ,several things may occur if power is applied
All of the above
The synchronous speed of an induction motor is found by
Multiplying the frequency by 60 and dividing the result by half the number of poles per phase
A series motor has a high current draw , small magnetic field and produces high torque making it ideal as a _
Starter
To reverse the direction of a DC motor you must reverse the direction of current in the winding of either the ____ or the ______
Arbiture, field