ASHRAE Technical Specifications 4

Question 1

Under ASHRAE 62.1, what is the zone air distribution effectiveness (Ez) for ceiling supply of cool air with ceiling return?

Accepted Answer

1.0

Answer

Table 6.2.2.2 assigns Ez = 1.0 to ceiling supply of cool air with ceiling return.

Question 2

Which ASHRAE 90.1 compliance path uses Appendix G to compare a proposed design against a baseline building?

Accepted Answer

Performance Rating Method

Answer

Appendix G's Performance Rating Method is also used for LEED energy credits and code compliance in recent editions.

Question 3

ASHRAE 52.2 groups test particles into ranges. Which size range is E1?

Accepted Answer

0.3 to 1.0 µm

Answer

E1 covers the smallest particles, 0.3 to 1.0 µm; E2 covers 1.0 to 3.0 µm and E3 covers 3.0 to 10.0 µm.

Question 4

In ASHRAE Standard 55, operative temperature in a space with low air speed is roughly equal to what?

Accepted Answer

The average of air temperature and mean radiant temperature

Answer

At low air speeds, operative temperature is about the mean of the dry-bulb air temperature and the mean radiant temperature.

Question 5

ASHRAE 90.1 climate zone assignments are defined in which ASHRAE standard?

Accepted Answer

Standard 169

Answer

ASHRAE 169 provides the climatic data and climate zone definitions that 90.1 references.

ASHRAE - American Society of Heating, Refrigeration and Air Conditioning Engineers Certification Practice Test