Top Tips for Passing the APC DU0-001 Exam on Your First Try

EIA-310

UL 1778

CSA C22.2

NEBS GR-63-CORE

The utility company's voltage is much higher than that of the spark.

The spark generates DC power but the utility company generates AC power.

The current available from a spark is much less than the current available from the utility company.

The human skin has a high enough resistance to keep from being hurt from the spark's voltage but not from the utility company's voltage.

Row-oriented architecture allows cooling capacity to be matched to the heat load within each zone.

Row-oriented architecture requires two cooling units per enclosure, creating a desirable oversizing scenario.

Row-oriented architecture cools all rows of the data center while generating additional conditioned air for the adjacent office areas.

Row-oriented architecture requires large volume of air mixing to reduce the return air temperature, driving up cooling system capacity.

(1) what you know, (2) what you have, (3) who you are

(1) what you know, (2) who you are, (3) what you have

(1) what you have, (2) who you are, (3) what you know

(1) what you have, (2) what you know, (3) who you are

Standby

Standby - ferro

Delta conversion online

Double conversion online

They set off smoke alarms.

They are corrosive to IT equipment.

They cause condensation on equipment.

They are ineffective against electrical fires.

Radiation

Convection

Conduction

Evaporation

Standby

High speed relay

Delta conversion online

Double conversion online

62-65F (17-18C)

72-75F (22-24C)

82-85F (28-29C)

92-95F (33-35C)

Switchgear

Wet cell battery

Diesel generator

Uninterruptible power supply