WorksheetsPower Supply Application Quiz
Total questions: 10
Worksheet time: 5mins
What is the proper voltage for a U.S. electrical outlet?
120V
60V
0V
-120V
What voltages does an ATX12V P1 connector provide for the motherboard?
3.3V, 5V
3.3V, 12V
5V, 12V
3.3V, 5V, 12V
What sort of power connector do better video cards require?
Molex
Mini
PCIe
SATA
Joachim ordered a new power supply but was surprised when it arrived because it had an extra 4-wire connector. What is that connector?
P2 connector for plugging in auxiliary components
P3 connector for plugging in case fans
P4 connector for plugging into modern motherboards
Aux connector for plugging into a secondary power supply
What should you keep in mind when testing DC connectors?
DC has polarity. The red lead should always touch the hot wire; the black lead should touch a ground wire.
DC has polarity. The red lead should always touch the ground wire; the black lead should always touch the hot wire.
DC has no polarity, so you can touch the red lead to either hot or ground.
DC has no polarity, so you can touch the black lead to either hot or neutral but not ground.
What voltages should the two hot wires on a Molex connector read?
Red = 3.3V; Yellow = 5V
Red = 5V; Yellow = 12V
Red = 12V; Yellow = 5V
Red = 5V; Yellow = 3.3V
Why is it a good idea to ensure that the slot covers on your computer case are all covered?
To maintain good airflow inside your case.
To help keep dust and smoke out of your case.
Both A and B are correct reasons.
Trick question! Leaving a slot uncovered doesn't hurt anything.
A PC's power supply provides DC power in what standard configuration?
Two primary voltage rails, 12-volts and 5-volts, and an auxiliary 3.3-Volt connector
Three primary voltage rails, one each for 12-volt, 5-volt, and 3.3-volt connectors
One primary DC voltage rail for 12-volt, 5-volt, and 3.3-volt connectors
One voltage rail with a 12-volt connector for the motherboard, a second voltage rail with a 12-volt connector for the CPU, and a third voltage rail for the 5-volt and 3.3-volt connectors
What feature of ATX systems prevent a user from turning off a system before the operating system has been shut down?
Motherboard power connector
CMOS setup
Sleep mode
Soft power
How many pins dos a SATA power connector have?
6
9
12
15
