24 Questions
Unless otherwise specified, any value given for current or voltage in an AC circuit assumed to be
effective value
A circuit has an applied voltage of 24 volts and a load consisting of a 10-ohm resistor in series with a 30 ohm resistor. what is the voltage drop across the 10-ohm resistor
6 volts
which is correct in reference to electrical resistance
If one of three bulbs in a parallels lighting circuit is removed, the total resistance of the circuit will become greater
The potential difference between two points in an electrical circuit is measured in
volts
Forward biasing of a solid state device will cause the device to
Conduct
Which statement is correct when made in reference to a parallels circuit
The total current is equal to the sum of the current through the individual branches of the circuit
Which of these will cause the resistance of a conductor to decrease
Decrease the length or increase the cross-sectional area
What is an advantage of a rotating field alternator versus a DC generator
The alternator stator armature can provide higher voltage than that of a generator
In a P-N-P transistor application, the solid state device is turned on when
Base is negative with respect to the emitter
How much does a 30-volt,1/2 horsepower motor that is 85%, efficient draw from the bus
14.6 amperes
which term mean 0.001 ampere
milliampere
In an AC circuit, the effective voltage is
less than the maximum instantaneous voltage
Increasing applied frequency will increase ...... and present more opposition to current in the circuit
Inductive reactance
In three-unit regulator, the... relay prevent damage to the generator due to extreme loads in the circuit
Current limiter
The electrolyte level of a nickel-cadmium battery is highest when the battery is
In a fully charged condition
What electrical component builds voltage to 99% of the applied value in five time constants
Capacitors
If the constant speed drive spins faster, the...outputs a higher current to the solenoid valve, reducing pressure to the hydraulic pump, slowing the drive
tachometer generator
The thermocouple uses which source of electrical energy
temperature
What would you install in a circuit that has numerous items operating at different potentials, but powered from one source
Voltage divider
When handling a line replaceable unit containing sensitive electronics, what should you not do
Wear consumer synthetic clothing
What is the function of a band-pass filter
Only frequencies between two cutoffs is passed
What device is used to limit mechanical travel by interrupting an electrical circuit
Microswitch
What electrical component maintains a holding circuit after the energizing power is removed
Latching relay
How do engineers compensate for high ambient temperature in electrical power distribution system installations
Derating circuit breakers
Test your knowledge of voltage, resistance, and parallel circuits in an AC circuit with this quiz. Questions cover topics such as voltage drop, potential difference measurement, forward biasing of solid state devices, and statements related to parallel circuits.
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