Distributed Generation

Question 1

How many Tiers of ITE site infrastructure support are there?

Answer 1

4

Question 2

What does SPOF stand for?

Answer 2

Single Point of Failure

Question 3

A tier __ system is the most common, typically small, and less critical. They are somewhat prone to failure, because that have multiple points of failure. They are backup with no redundancy.

Answer 3

Tier 1 (N)

Question 4

A tier __ system has redundancy for ONLY select loads, such as UPS’s and cooling equipment.

Answer 4

Tier 2 (N+1)

Question 5

A tier __ system has double the need for the center, allowing it to be concurrently maintained.

Answer 5

Tier 3 (2N)

Question 6

A tier __ system is completely redundant, and then some, for the entire ITE. It is very fault-tolerant.

Answer 6

Tier 4 (2N+1)

Question 7

What does CRAC stand for?

Answer 7

Computer Room Air Conditioning

Question 8

What are the three basic types of credentials for security?

Answer 8

1. ) What you have (Key cards, badges, etc)
2. ) What you know (PIN, password, code)
3. ) Who you are (Biometrics)

Question 9

What does UPS stand for?

Answer 9

Uninterruptible Power Supply

Question 10

What are the five different types of UPS?

Answer 10

1. ) Standby
2. ) Rotary
3. ) Line-Interactive
4. ) Delta Conversion On-Line
5. ) Double Conversion On-Line

Question 11

Which type of UPS is typically very small, and is usually connected to personal computers?

Answer 11

Standby

Question 12

Which type of UPS is an early design, using a rectifier to provide power to a DC motor/generator which supplies AC to the equipment, while also charging the battery. Upon loss of power, the battery maintains the speed of the DC motor/generator.

Answer 12

Rotary.

Question 13

Which type of UPS is used for small businesses, Web, and departmental services, with an inverter always on and connected to the output of the UPS. (When power fails, the inverter is ran backwards from the battery to feed equipment)

Answer 13

Line-Interactive

Question 14

Which type of UPS is the most recent design, which uses an AC to AC conversion process in conjunction with an AC/DC/AC power path? (Excellent Voltage Regulation and Highly Efficient)

Answer 14

Delta Conversion On-Line

Question 15

Which type of UPS changes all AC input to DC, charging the battery, and feeding the inverter which delivers AC power to the equipment? (Excellent Voltage and Frequency Regulation)

Answer 15

Double Conversion On-Line

Question 16

UPS’s are sized in which measure of Power?

Answer 16

VA (Apparent Power)

Question 17

In power quality measurement, 1 is considered ____. (Where True and Apparent power are the same)

Answer 17

Unity

Question 18

It is good practice to only load a UPS to __% of its capacity.

Answer 18

80%

Question 19

What is a Parallel Redundant System?

Answer 19

A system using two or more independent UPS modules, with two separate input/output feeders.

Question 20

What is a Distributed Redundant System?

Answer 20

The most commonly used type of system used today, containing multiple PDU’s and Solid State Transfer Switches. It can switch within one cycle (1/60th of a second)

Question 21

____-____ testing is done at the manufacturer’s facility before the equipment is shipped to the job site. The IT manager may request a copy of the test results.

Answer 21

Factory-Acceptance

Question 22

____ is when proper function of a system or machine is tested, verified, and signed off on. It is done after installation is completed. The system/machine is usually tested at 100% capacity to verify integrity.

Answer 22

Commissioning

Question 23

What is the most common reason that ITE centers lose power?

Answer 23

Human error.

Question 24

Sometimes the ____ service conductor is oversized to handle higher currents caused by harmonics in a facility.

Answer 24

Neutral (Grounded)

Question 25

____ Fuel Cells use liquid phosphoric acid and ceramic electrolyte and a platinum catalyst. They are used not only to produce electricity but heat for large facilities such as hospitals, schools, manufacturing and processing centers.

Answer 25

PAFC (Phosphoric Acid Fuel Cell)

Question 26

____ fuel cells are the highest temperature fuel cell, operating at about 1800 degrees Fahrenheit. They use a dense layer of ceramic as an electrolyte, which at high temperatures allows for the conductivity of oxygen ions. They are used for a large range of applications from residential, to greater buildings and businesses.

Answer 26

SOFC (Solid Oxide Fuel Cell)