Power Supply Application Quiz

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