TPC Basic Electricity & Electronics
UPDATED ACTUAL Exam Questions and
CORRECT Answers
All modern electrical equipment is based on an understanding of the relationship between
_________
and _________. - CORRECT ANSWER - electricity; magnetism
If a gap exists in an electric circuit, the circuit is said to be - CORRECT ANSWER - open
Atomic particles that have a positive electrical charge are called - CORRECT ANSWER -
protons
Static electricity - CORRECT ANSWER - does not move
You may find electricity easier to understand if you think of voltage as electrical - CORRECT
ANSWER - pressure
Identical cells connected in __________ provide greater _________ than a single cell. -
CORRECT ANSWER - parallel; current capacity
You must be careful when recharging lead-acid batteries because they - CORRECT
ANSWER - can explode
can throw acid around the area
produce flammable gases
"all of the above" ALL IS ANSWER
The negative plate in an electrochemical cell is called the - CORRECT ANSWER -
cathode
, Which device for producing a potential difference consists of two different metals welded
together? - CORRECT ANSWER - Thermocouple
An optoisolator receives a low-voltage signal on the LED side of the device and triggers a device
that
produces a ___________ voltage on the output side. - CORRECT ANSWER - higher
The purpose of a potentiometer is to - CORRECT ANSWER - divide a potential difference
into two parts
Power is measured in - CORRECT ANSWER - watts
Variable resistors in the range of ^1/_2 to 2 watts are called _____________, while those in the
range of
5 to 1000 watts are called _____________. - CORRECT ANSWER - potentiometers;
rheostats
If the fourth color band on a resistor is silver, the measured value of resistance is within
_________% of
the marked value - CORRECT ANSWER - 10
Which of the following diode operating specifications defines the maximum potential difference
that can
be applied across a diode in the reverse direction without destroying it? - CORRECT
ANSWER - Peak inverse voltage
The center section of a transistor is - CORRECT ANSWER - base
A cathode has a ______________ charge. - CORRECT ANSWER - negative
UPDATED ACTUAL Exam Questions and
CORRECT Answers
All modern electrical equipment is based on an understanding of the relationship between
_________
and _________. - CORRECT ANSWER - electricity; magnetism
If a gap exists in an electric circuit, the circuit is said to be - CORRECT ANSWER - open
Atomic particles that have a positive electrical charge are called - CORRECT ANSWER -
protons
Static electricity - CORRECT ANSWER - does not move
You may find electricity easier to understand if you think of voltage as electrical - CORRECT
ANSWER - pressure
Identical cells connected in __________ provide greater _________ than a single cell. -
CORRECT ANSWER - parallel; current capacity
You must be careful when recharging lead-acid batteries because they - CORRECT
ANSWER - can explode
can throw acid around the area
produce flammable gases
"all of the above" ALL IS ANSWER
The negative plate in an electrochemical cell is called the - CORRECT ANSWER -
cathode
, Which device for producing a potential difference consists of two different metals welded
together? - CORRECT ANSWER - Thermocouple
An optoisolator receives a low-voltage signal on the LED side of the device and triggers a device
that
produces a ___________ voltage on the output side. - CORRECT ANSWER - higher
The purpose of a potentiometer is to - CORRECT ANSWER - divide a potential difference
into two parts
Power is measured in - CORRECT ANSWER - watts
Variable resistors in the range of ^1/_2 to 2 watts are called _____________, while those in the
range of
5 to 1000 watts are called _____________. - CORRECT ANSWER - potentiometers;
rheostats
If the fourth color band on a resistor is silver, the measured value of resistance is within
_________% of
the marked value - CORRECT ANSWER - 10
Which of the following diode operating specifications defines the maximum potential difference
that can
be applied across a diode in the reverse direction without destroying it? - CORRECT
ANSWER - Peak inverse voltage
The center section of a transistor is - CORRECT ANSWER - base
A cathode has a ______________ charge. - CORRECT ANSWER - negative
