955 test WITH ACTUAL
EXAM QUESTIONS WITH
DETAILED VERIFIED
ANSWERS
Define IMPEDANCE - ANSWER -...
What does NPN stand for? - ANSWER -...
What does PNP stand for? - ANSWER -...
What are the three leads on a PNP, or NPN TRANSISTOR? - ANSWER -EMITTER, BASE,
AND COLLECTOR. On the symbol the Emitter is the one with the arrow, the Base is the sideway
T, and the Collector is the third leg.
State Ohm's law - ANSWER -V=IXR
R=V/I
I=V/R
If current goes down, what does resistance do? - ANSWER -Reistance goes up
If Voltage is CONSTANT and Resistance goes DOWN, what must Current do? - ANSWER -
Current HAS to go UP!
, What is the definition of a short circuit? - ANSWER -Zero resistance. Circuit has high
current, and zero resistance.
What would cause Current to DECREASE in a circuit, IF Voltage remained CONSTANT? -
ANSWER -INCREASSE in Resistance
What is a Transformer? - ANSWER -An electrical device that transfers energy from one
electrical circuit to another by magnetic coupling, aka: Mutal Induction. One set of windings
induce a voltage in the other set of windings.
What are Transformers used for? - ANSWER -Used to convert between high and low
voltages and for impedance transformation.
State the Power formula. - ANSWER -P = V X I
power equals voltage times current
What are air core transformers main use? - ANSWER -Radio frequency circuits ABOVE
20kHz
What are iron core transformers main use? - ANSWER -Lower frequency: below 20kHz
To transmit electrical power what must a transformer have? - ANSWER -Has a very high
current OR very high voltage. High current means a high flow rate of electrons. This requires a
VERY large COPPER or ALUMINUM cable.
*How does a Power Station function? - ANSWER -Uses high voltage to reduce the
amount and weight and therefore
What is the symbol for a transformer? - ANSWER -XX
What kind of electrical charge does a neutron have? - ANSWER -Neutral
EXAM QUESTIONS WITH
DETAILED VERIFIED
ANSWERS
Define IMPEDANCE - ANSWER -...
What does NPN stand for? - ANSWER -...
What does PNP stand for? - ANSWER -...
What are the three leads on a PNP, or NPN TRANSISTOR? - ANSWER -EMITTER, BASE,
AND COLLECTOR. On the symbol the Emitter is the one with the arrow, the Base is the sideway
T, and the Collector is the third leg.
State Ohm's law - ANSWER -V=IXR
R=V/I
I=V/R
If current goes down, what does resistance do? - ANSWER -Reistance goes up
If Voltage is CONSTANT and Resistance goes DOWN, what must Current do? - ANSWER -
Current HAS to go UP!
, What is the definition of a short circuit? - ANSWER -Zero resistance. Circuit has high
current, and zero resistance.
What would cause Current to DECREASE in a circuit, IF Voltage remained CONSTANT? -
ANSWER -INCREASSE in Resistance
What is a Transformer? - ANSWER -An electrical device that transfers energy from one
electrical circuit to another by magnetic coupling, aka: Mutal Induction. One set of windings
induce a voltage in the other set of windings.
What are Transformers used for? - ANSWER -Used to convert between high and low
voltages and for impedance transformation.
State the Power formula. - ANSWER -P = V X I
power equals voltage times current
What are air core transformers main use? - ANSWER -Radio frequency circuits ABOVE
20kHz
What are iron core transformers main use? - ANSWER -Lower frequency: below 20kHz
To transmit electrical power what must a transformer have? - ANSWER -Has a very high
current OR very high voltage. High current means a high flow rate of electrons. This requires a
VERY large COPPER or ALUMINUM cable.
*How does a Power Station function? - ANSWER -Uses high voltage to reduce the
amount and weight and therefore
What is the symbol for a transformer? - ANSWER -XX
What kind of electrical charge does a neutron have? - ANSWER -Neutral
