AVIOAVM8

What happens if a failure is detected during power up of the SSCVR?. Failure condition is stored in crash protected memory, front panel BITE indicator is continuously on, and maintenance discrete is set in failure mode. Failure condition is ignored, front panel BITE indicator flashes, and unit continues normal operation. Failure condition is reported to OMS system only, front panel BITE indicator is activated, and maintenance discrete is set in failure mode. Failure condition is reported to OMS system only, front panel BITE indicator is activated, and unit enters standby mode.

What data does the push to test function of the SSCVR check?. Audio data. Digital communication data. System integrity. Configuration data.

How does the SSCVR indicate a successful self-test during the push to test function?. By activating the status LED once and emitting an 800-Hz tone. By deactivating the status LED and emitting a 400-Hz tone. By activating the microphone monitor once. By displaying a message on the cockpit display.

The letter symbol used to represent electrical current is. I. E. R.

The letter symbol used to represent electrical pressure is. E. R. I.

The letter symbol used to represent electrical resistance is. R. I. E.

The point in an aircraft electrical system from which the various circuits get their power is called a. bus. an electrical load. contactor.

Three things that happen in an electrical circuit when current flows through it are: heat is produced in the conductor. magnetic field surrounds the conductor. voltage is dropped across the load.

If a 4-gage copper wire routed in free air is to be replaced with an aluminum wire that is to carry the same amount of current, a ___-gage aluminum wire will have to be used. 2. 4. 6. 8.

The smallest size aluminum wire recommended for use in aircraft electrical systems is ___-gage. 4. 6. 8. 10.

When selecting the size wire to use in an aircraft electrical system, two things must be considered. These are: current-carrying capability. allowable voltage drop. wire length. all of the above.

The longer line in the symbol for a battery indicates the ___ terminal. positive. negative.

Electrons flowing in an electrical circuit flow in the ___ direction as the arrowheads in a semiconductor diode symbol. opposite. same. Nearby.

Conventional current in an electrical circuit is assumed to flow in the ___ direction as the arrowheads in a semiconductor diode symbol. same. opposite. Nearby.

If the bar in the symbol for a semiconductor diode is connected to the negative terminal of a battery, the diode is ___ biased. forward. afther.

A forward-biased diode acts as a/an ___ switch. closed. open.

The voltage drop across a forward-biased silicon diode is approximately ___ volt. 0.7. 0.6. 0.9.

The voltage drop across a forward-biased silicon diode ___ vary with the current flowing through it. does not. does.

A semiconductor device that can be used as a voltage sensor is a/an. zener diode. bus.

A zener diode used as a voltage regulator is ___ biased. reverse. Nearby.

An electrical relay has a ___ core. fixed. Movable. Electromagnetic.

A solenoid has a ___ core. Unbiased. movable. Forward. Reverse.

When the base of an NPN transistor has the same polarity as the collector, the transistor acts as a/an ___ switch. closed. Open.

When a transistor is connected in an amplifier circuit, bringing its base polarity closer to that of the collector ___. increases. decreases.

A semiconductor device that acts in the same way as a holding relay is a/an. silicon controlled rectifier. Thyristor. Triac.

In a complete series circuit, the sum of the voltage drops is the same as the applied voltage. This sentence is (true or false). true. False.

The voltage drop across an open switch in a series circuit is (zero volts or battery voltage). battery voltage. zero volts.

The voltage drop across a closed switch in a series circuit is (zero volts or battery voltage). zero volts. battery voltage.

The amount of current that flows through each path of a parallel circuit is determined by the ___ of the path. resistance. battery voltage.

The voltage across each path of a parallel circuit is equal to the ___ voltage. battery. resistance.

The reference from which all voltage is measured in an aircraft electrical system is called the ___. ground. negative.

Return current from devices installed in an aircraft electrical system flows back to the battery through the ___. aircraft structure. Negative bus. Ground.

The battery terminal that is normally grounded is the ___ (negative or positive) terminal. negative. positive.

Circuit breakers and fuses are installed in a circuit primarily to protect the (wiring or circuit devices). wiring. circuit devices.

The one circuit in an aircraft electrical system that is not required to be protected by a circuit protection device is the main ___ circuit. starter. Battery.

Circuit breakers used in aircraft electrical systems must be of the ___ type. trip-free. trip-free.

A trip-free circuit breaker (can or cannot) be manually held closed in the presence of a fault. cannot. cannot.

Automatic reset circuit breakers (are or are not) approved for use in aircraft electrical circuits. are. are not.

An electrical circuit that has 12 fuses rated at 30 amps is required to carry at least ___ 30-amp fuses as spares. 6. 8. 10.

Current that is induced into a conductor by a changing current in another nearby conductor is called ___ current. Mutual. induced.

The amount of current that is induced by a changing magnetic field is determined by the ___ of change of the magnetic field. rate. Frequency. Magnitude.

The direction of flow of induced current is ___ that of the current that caused it. opposite. positive. negative.

The diode that is placed across the coil of a battery contactor is ___ biased by the battery. (forward or reverse). reverse. Forward. Forward.

Refer to Figure . The device that prevents the GPU from overcharging a fully charged battery. resistor R. switch. the fuse.

Refer to Figure . The device that prevents the GPU from being connected to the aircraft electrical system if its polarity is incorrect is. diode Dy. switch. the fuse.

Refer to Figure. The device that prevents the GPU from being connected to the aircraft electrical system if there is a short in the battery is. the fuse. switch. diode.

The prime source of electrical power in an aircraft is the. alternator. Battery. Inverter.

The load current produced in a AC alternator is produced in the. stator. Armature. Field windings.

In an A-circuit generator, the voltage regulator is between the field terminal of the generator and (ground or the armature). ground. the armature.

A 20-gage wire will carry ___ current than an 18-gage wire. more. less. the same. none of the above.