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APC DU0-001 - Questions & Answers

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Question 1
Single choice

Which air distribution method is displayed in this picture?

A.

Flooded supply, fully ducted return

B.

Flooded supply, locally ducted return

C.

Locally ducted supply, flooded return

D.

Locally ducted supply, flooded return

Question 2
Single choice

Which air distribution method is displayed in this picture?

A.

Fully ducted supply, flooded return

B.

Flooded supply, fully ducted return

C.

Flooded supply, locally ducted return

D.

Locally ducted supply, flooded return

Question 3
Single choice

Click the Exhibit button.

Which air distribution method is displayed in the exhibit?

A.

Flooded supply, flooded return

B.

Flooded supply, fully ducted return

C.

Flooded supply, locally ducted return

D.

Locally ducted supply, flooded return

Question 4
Single choice

What is the highest cost UPS configuration?

A.

System + system

B.

Parallel redundant

C.

Isolated redundant

D.

Distributed redundant

Question 5
Single choice

What is the difference between an undervoltage and a sag?

A.

A sag lasts less time than an undervoltage condition.

B.

A sag has less of a voltage drop than an undervoltage condition.

C.

A sag is due to downstream loads and undervoltage is due to the power source.

D.

A sag occurs in low voltage distribution and undervoltage occurs in high voltage distribution.

Question 6
Single choice

What is required for the transfer of heat from one object to another?

A.

A difference in airflow

B.

A difference in volume

C.

A difference in pressure

D.

A difference in temperature

Question 7
Single choice

What does the CFD acronym stand for?

A.

Certified Field Dichotomy

B.

Circular Flow Determination

C.

Computational Finite Deviation

D.

Computational Fluid Dynamics

Question 8
Single choice

The rear of an IT equipment rack is fitted with a duct that is connected to a drop ceiling plenum; the
plenum is connected by a duct to the perimeter CRAC unit. The CRAC unit discharges air into a raised floor. The IT equipment rack is located above a hole in the raised floor which allows conditioned air to enter the rack.

This is an example of which type of air distribution system?

A.

Flooded supply, fully ducted return

B.

Locally ducted supply, flooded return

C.

Flooded supply, locally ducted return

D.

Fully ducted supply, fully ducted return

Question 9
Single choice

Cooling towers are a typical component of which heat rejection system?

A.

Water cooled system

B.

Glycol cooled system

C.

Air cooled split system

D.

Air cooled self-contained system

Question 10
Single choice

Which type of humidification system uses quartz lamps extended over an open pool of water to release water vapor?

A.

Infrared humidifier

B.

Ultrasonic humidifier

C.

Electromagnetic humidifier

D.

Steam canister humidifier

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