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(4-081-1.6) Shunt wound DC motors are used where speed must remain constant regardless of
load, such as on: Lathes
(4-083-1.10) Extra low voltages include all voltages below _____ V. 30
(4-078-6.2) Most conductors tend to: Increase in resistance with increase in temperature.
(4-081-1.3) The connection provided on DC motors to supply the armature with power, via
brushes,: Is a commutator
(4-078-2.4) An electrical device that is designed to start and stop current flow is the: Switch
(4-081-4.1) Watt meters measure: Active power
(4-082-4.5) Transformers should be inspected at least: Once or twice a year
(4-078-5.2) The total circuit resistance is less than a value of any individual resistor: When
the resistors are wired in parallel
(4-080-2.3) The instrument used to measure electrical power used in a period of time, is the:
Kilowatt hour meter
(4-078-3.3) _____ is a unit of electromotive force. The volt
(4-080-1.1) The voltmeter is placed: In parallel with the circuit
, (4-083-2.2) The electrical schematic or elementary diagram shows: By means of graphical
symbols the function, sequence, connection and electrical relationship of each circuit
(4-079-1.5) Current flow direction and intensity, through a conductor, will: Affect magnetic
field direction and intensity
(4-082-3.7) Three-phase transformers have: Six windings
(4-079-2.5) The maximum voltage generated by a single loop DC generator occurs, when the
conductor is cutting the magnetic lines of force at an angle of: 90°
(4-081-2.3) For three-phase power, each conductor is _____ electrical degrees out of phase
with the others. 120
(4-080-1.5) Clamp-on ammeter readings may be inaccurate if: Jaws are dirty or misaligned
(4-078-4.2) The total equivalent resistance of three resistances in a series circuit can be given
as: R1 + R2 + R3
(4-079-2.7) If a conductor is held stationary and a magnetic field is moved across it, it behaves
according to: Generator action
(4-079-2.10) If a conductor is forced to _____ magnetic lines of force, an electromotive force is
induced in the conductor. Move through
(4-081-1.18) The output voltage of a particular DC generator rises sharply from minimum load
to full load. This generator is a ___________ generator. Series