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Voltage Regulator
Quiz 2
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Q.1
The QUANTITY symbol for volts.
V
v
I
I
Q.2
To increase the voltage of a circuit…
Use a bigger cell/battery
Connect more cells in series
Connect more cells in parallel
Use a stronger voltmeter
Q.3
Voltmeters are connected in series in a circuit.
True
False
Q.4
The units of voltage.
Amps
Coulombs
Volts
Joules
Q.5
The transmission system operates at high voltages in ranges from ____________ to __________ volts.
240 to 1000
138,000 to 1,000,000
1000 to 5000
Q.6
Insulators such as ______________and ______________ are good materials that do not allow electrical current to flow through them.
glass and fiber glass
copper and aluminum
wood and titanium
Q.7
_____________have low resistances and ________________ have very high resistances.
conductors and insulators
resistors and capacitors
diodes and capacitors
Q.8
A____________ is an electrical device by which alternating current of one voltage is changed to another voltage.
Capacitor
Transformer
Resistor
Q.9
Forcing current through the resistance in a conductor makes _____________
amperage or current
heat
electricity
Q.10
If there are fewer turns in the primary winding than in the secondary winding, the transformer is said to be a _____________ transformer.
step-down
step-up
powerful
Q.11
If you are at home and your lights flash off and on two or three times that could be an indication that the _____________ is trying to protect the wires or lines.
distribution circuit breaker
distribution circuit regulator
distribution transformer
Q.12
In an operating plant, water is lost through leakage and other losses. Since the water level must remain fairly constant additional water has to be added to the system. This water is referred to as__________________.
liquid substitution
Flooding
makeup water
Q.13
______________ are materials such as copper and aluminum that allow current to flow freely through them.
buses
resistors
conductors
Q.14
A ________________ is a specially designed conductor having low resistance.
insulator
resistor
bus
Q.15
The “pressure” pushing the electrons along is called the ___________
Amperage or current
voltage
wattage
Q.16
_____________ is the number of electrons in motion in an electrical circuit.
Amperage or current
voltage
wattage
Q.17
Most of the furnace heat is absorbed by the boiler tubes, superheater and reheaters. However, some of the remaining heat that would otherwise go out the stack is left to heat the feed water. The economy of the system is increased by adding a bank of tubes to preheat the water. This bank of tubes is called the______________.
economizer
heat regulator
water heater
Q.18
To reuse the exhaust steam a large hollow box is attached to the exhaust opening of the turbine. This box is referred to as a ____________through which relatively cool water is pumped.
heat exchanger
heat pump
Condenser
Q.19
The _____________ is a heater that reheats the steam after it has been through part of the turbine.
Superheater
Reheater
thermal chamber
Q.20
The ___________________ are placed directly in the walls of the furnace to absorb the greatest possible amount of heat in the boiler.
fire hoses
Waterwall tubes
insulating pads
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