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Canadian Basic Exam Question Bank

effective 4/01/2007

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B-003-16: Cells and batteries, types, ratings, charging

B-003-16-01: How much voltage does a standard automobile battery usually supply ?

About 12 volts

About 240 volts

About 120 volts

About 9 volts



B-003-16-02: Which component has a positive and a negative side?

A battery

A potentiometer

A fuse

A resistor



B-003-16-03: A cell, that can be repeatedly recharged by supplying it with electrical energy, is known as a:

storage cell

low leakage cell

memory cell

primary cell



B-003-16-04: Which of the following is a source of EMF?

lead acid battery

germanium diode

P channel FET

carbon resistor



B-003-16-05: An important difference between a conventional flashlight battery and a lead acid battery is that only the lead acid battery:

can be repeatedly recharged

has two terminals

can be completely discharged

contains an electrolyte



B-003-16-06: A dry cell has a nominal voltage of 1.5 volt. When supplying a great deal of current, the voltage may drop to 1.2 volt. This is due to the cell's:

internal resistance

electrolyte becoming dry

current capacity

voltage capacity



B-003-16-07: The most common primary cell in use today is the carbon-zinc or flashlight cell. This cell can be recharged:

never

twice

many times

once



B-003-16-08: All storage batteries have discharge limits, and nickel-cadmium, the type most used in hand-held portables, should not be discharged to less than:

1.0 volt per cell

0.5 volt per cell

1.5 volt per cell

0.2 volt per cell



B-003-16-09: To increase the current capacity of a cell, several cells should be connected in:

parallel

series

parallel resonant

series resonant



B-003-16-10: To increase the voltage output, several cells are connected in:

series

parallel

series-parallel

resonance



B-003-16-11: A nickel-cadmium battery should never be:

short-circuited

recharged

left disconnected

left overnight at room temperature





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B-003-15: Digital mode fundamentals (RTTY, ASCII, AMTOR, packet)
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B-003-17: Power supply fundamentals
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