955 MSS TEST PAPER ALL QUESTIONS AND
ANSWERS SURE A+
✔✔What are air core transformers main use? - ✔✔Radio frequency circuits ABOVE
20kHz
✔✔What are iron core transformers main use? - ✔✔Lower frequency: below 20kHz
✔✔To transmit electrical power what must a transformer have? - ✔✔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? - ✔✔Uses high voltage to reduce the amount
and weight and therefore
✔✔What is the symbol for a transformer? - ✔✔XX
✔✔What kind of electrical charge does a neutron have? - ✔✔Neutral
✔✔What kind of electrical charge does a proton have? - ✔✔Positive
✔✔The step down transformer outside a house does what? - ✔✔Reduces the voltage
to a usable voltage for the house ELECTRIC, which are usually TWO 120VAC legs.
✔✔What is an electronic shunt? - ✔✔A device which allows electric current to pass
around a point in a circuit. A shunt as CIRCUIT PROTECTION: is a device that is
commonly called a CROWBAR circuit and is used when a circuit must be protected
from over VOLTAGE.
✔✔What does a capacitor do? - ✔✔When used as a shunt, redirects hight frequency
nouse to ground before it can transmit to the load or other circuit components. This is
why they are used so frequently in DC power supplies as AC filters.
ANSWERS SURE A+
✔✔What are air core transformers main use? - ✔✔Radio frequency circuits ABOVE
20kHz
✔✔What are iron core transformers main use? - ✔✔Lower frequency: below 20kHz
✔✔To transmit electrical power what must a transformer have? - ✔✔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? - ✔✔Uses high voltage to reduce the amount
and weight and therefore
✔✔What is the symbol for a transformer? - ✔✔XX
✔✔What kind of electrical charge does a neutron have? - ✔✔Neutral
✔✔What kind of electrical charge does a proton have? - ✔✔Positive
✔✔The step down transformer outside a house does what? - ✔✔Reduces the voltage
to a usable voltage for the house ELECTRIC, which are usually TWO 120VAC legs.
✔✔What is an electronic shunt? - ✔✔A device which allows electric current to pass
around a point in a circuit. A shunt as CIRCUIT PROTECTION: is a device that is
commonly called a CROWBAR circuit and is used when a circuit must be protected
from over VOLTAGE.
✔✔What does a capacitor do? - ✔✔When used as a shunt, redirects hight frequency
nouse to ground before it can transmit to the load or other circuit components. This is
why they are used so frequently in DC power supplies as AC filters.
