ETA Certification Test Questions and
Answers.
Which symbol is used for ohms of resistance? Answer - Ω
A unit of energy is the: Answer - Joule
Minute particles that make up all possible elements and still retain the unique chemical
characteristics of the element are called: Answer - atoms
A component whose value is measured in microfarads is a: Answer - capacitor
Kirchoff's Voltage Law (KVL) states that the total voltage around a closed loop must be
zero. Answer - True
The pole of the magnet from which the flux leaves is called the _______ pole. Answer -
north
Safety precautions to be taken when working on high voltage equipment include which
of the following? Answer - All jewelry should be removed
Which metric prefix would be used to represent 1 x 10⁻³ Answer - Milli
An electron has: Answer - a negative charge
Total power in a series circuit equals the: Answer - sum of the power dissipated by each
resistor
Invisible lines of force that surround a magnet are called: Answer - magnetic flux lines
The basic unit of electric power is the: Answer - watt
With three 4.5 kΩ resistors and one 1.5 kΩ resistor in parallel, the total resistance is:
Answer - 750 Ω
The basic unit of length in the metric system is the: Answer - meter
What two types of energy are used throughout electronics? Answer - Kinetic and
potential
, Electrical direct current flowing in a wire produces a magnetic field: Answer - parallel to
the wire
Battery cells are connected in parallel to: Answer - increase current capacity
Which class of fire extinguisher is used on oil fires? Answer - Class B
When the resistance of a series circuit decreases, ____________. Answer - total
current increases
A material is magnetized when the: Answer - domains are in alignment
If a series circuit has two 13 kΩ resistors with a source voltage of 10 V, the wattage is:
Answer - 3.85 mW
What does the M+ key on a calculator do? Answer - sums the quantity on screen to
memory
The total current in a series-parallel circuit equals the: Answer - sum of the parallel
branch circuit current
The ammeter setting on a multimeter indicates what type of reading? Answer - Current
In a series circuit, the current is _________. Answer - the same in all parts of the circuit
_______ force produces magnetic flux. Answer - Magnetomotive
Calculate the current in the circuit below:
https://lh6.googleusercontent.com/
pJLEK44RE1QIOD0SKYb1O2KsnIGwxNNJUaWp24wPLWJDQw3QUqh9RpH7PHFA9
JWOQb8uSRm6eg=w200 Answer - 6 Amps
A component whose value is measured in Ohms is a: Answer - resistor
You should use caution when talking to someone who is operating electrical equipment
because the distraction: Answer - could damage the equipment
could ruin an electronic device
both could be injured
all of the above
A material that can be magnetized easily falls into this category: Answer -
Ferromagnetic
Answers.
Which symbol is used for ohms of resistance? Answer - Ω
A unit of energy is the: Answer - Joule
Minute particles that make up all possible elements and still retain the unique chemical
characteristics of the element are called: Answer - atoms
A component whose value is measured in microfarads is a: Answer - capacitor
Kirchoff's Voltage Law (KVL) states that the total voltage around a closed loop must be
zero. Answer - True
The pole of the magnet from which the flux leaves is called the _______ pole. Answer -
north
Safety precautions to be taken when working on high voltage equipment include which
of the following? Answer - All jewelry should be removed
Which metric prefix would be used to represent 1 x 10⁻³ Answer - Milli
An electron has: Answer - a negative charge
Total power in a series circuit equals the: Answer - sum of the power dissipated by each
resistor
Invisible lines of force that surround a magnet are called: Answer - magnetic flux lines
The basic unit of electric power is the: Answer - watt
With three 4.5 kΩ resistors and one 1.5 kΩ resistor in parallel, the total resistance is:
Answer - 750 Ω
The basic unit of length in the metric system is the: Answer - meter
What two types of energy are used throughout electronics? Answer - Kinetic and
potential
, Electrical direct current flowing in a wire produces a magnetic field: Answer - parallel to
the wire
Battery cells are connected in parallel to: Answer - increase current capacity
Which class of fire extinguisher is used on oil fires? Answer - Class B
When the resistance of a series circuit decreases, ____________. Answer - total
current increases
A material is magnetized when the: Answer - domains are in alignment
If a series circuit has two 13 kΩ resistors with a source voltage of 10 V, the wattage is:
Answer - 3.85 mW
What does the M+ key on a calculator do? Answer - sums the quantity on screen to
memory
The total current in a series-parallel circuit equals the: Answer - sum of the parallel
branch circuit current
The ammeter setting on a multimeter indicates what type of reading? Answer - Current
In a series circuit, the current is _________. Answer - the same in all parts of the circuit
_______ force produces magnetic flux. Answer - Magnetomotive
Calculate the current in the circuit below:
https://lh6.googleusercontent.com/
pJLEK44RE1QIOD0SKYb1O2KsnIGwxNNJUaWp24wPLWJDQw3QUqh9RpH7PHFA9
JWOQb8uSRm6eg=w200 Answer - 6 Amps
A component whose value is measured in Ohms is a: Answer - resistor
You should use caution when talking to someone who is operating electrical equipment
because the distraction: Answer - could damage the equipment
could ruin an electronic device
both could be injured
all of the above
A material that can be magnetized easily falls into this category: Answer -
Ferromagnetic
