The working voltage of a capacitor in an ac circuit should be

at least 50 percent greater than the highest applied voltage

Capacitors are sometimes used in dc circuits to

smooth out slight pulsations in current/voltage

The amount of electricity a capacitor can store is directly proportional to the

plate area and inversely proportional to the distance between the plates

When inductors are connected in series in a circuit, the total inductance is (where the magnetic fields of each inductor do not affect the others)

equal to the sum of the individual inductances

If electrolyte from a lead-acid battery is spilled in the battery compartment, which procedure should be followed?

Apply sodium bicarbonate to the affected area followed by a water rinse.

Which statement regarding the hydrometer reading of a lead-acid storage battery electrolyte is true? The hydrometer reading does not require a temperature correction if the electrolyte temperature is 80°F, A specific gravity correction should be added to the hydrometer reading if the electrolyte temperature is below 59°F, The hydrometer reading will give a true indication of the capacity of the battery regardless of the electrolyte temperature

The hydrometer reading does not require a temperature correction if the electrolyte temperature is 80°F

A fully charged lead-acid battery will not freeze until extremely low temperatures are reached because

most of the acid is in the solution

What determines the amount of current which will flow through a battery while it is being charged by a constant voltage source?

The state-of-charge of the battery

The method used to rapidly charge a nickel-cadmium battery utilizes

constant voltage and varying current

The purpose of providing a space underneath the plates in a lead acid battery's cell container is to

prevent sediment buildup from contacting the plates and causing a short circuit

Which condition is an indication of improperly torqued cell link connection of a nickel-cadmium battery? Light spewing at the cell caps, Toxic and corrosive deposits of potassium carbonate crystals, Heat or burn marks on the hardware

Heat or burn marks on the hardware

What is the likely result of servicing and charging nickel-cadmium and lead acid batteries together in the same service area?

Contamination of both types of batteries

The end-of-charge voltage of a 19-cell nickel-cadmium battery, measured while still on charge

depends upon its temperature and the method used for charging

Nickel-cadmium batteries which are stored for a long period of time will show a low liquid level because

electrolyte becomes absorbed into the plates

What may result if water is added to a nickel-cadmium battery when it is not fully charged?

excessive spewing is likely to occur during the charging cycle

In nickel-cadmium batteries, a rise in cell temperature

causes a decrease in internal resistance

Which of the following best describes the contributing factors to thermal runaway in a nickel-cadmium battery installed in an aircraft? Options: High internal resistance intensified by high cell temperatures and high current discharge/charge rate in constant potential charging system, Low internal resistance intensified by high cell temperatures and a high voltage discharge/charge rate in a constant current charging system, Low internal resistance intensified by high cell temperatures and a high current discharge/charge rate in a constant potential charging system

Low internal resistance intensified by high cell temperatures and a high current discharge/charge rate in a constant potential charging system

When a charging current is applied to a nickel cadmium battery, the cells emit gas

toward the end of the charging cycle

Basic Electricity (Aviation) Flashcards

Student preview

49 questions

Show all answers

1.

FLASHCARD QUESTION

Front

The most commonly used solder for electrical applications is

Back

60/40 tin/lead

2.

FLASHCARD QUESTION

Front

The proper appearance of a gold solder connection is

Back

bright, smooth, shiny

3.

FLASHCARD QUESTION

Front

The opposition to current flow in an electrical circuit is called?

Back

resistance

4.

FLASHCARD QUESTION

Front

Ammeters are used to measure the rate of electron flow.

Back

rate of electron flow

5.

FLASHCARD QUESTION

Front

A shunt resistance for an ammeter is used to

Back

bypass most of the current around the meter

6.

FLASHCARD QUESTION

Front

What is the purpose of a megohmmeter? To measure very high

Back

resistance

7.

FLASHCARD QUESTION

Front

One KW is the term used to express one

Back

kilo watt

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