40 review Quiz

Most occupants will normally operate their system at about (a)   °F.

Tags

NGSS.MS-PS3-4

AHRI rates condensers with (a)   °F air passing over them.

At what conditions are air-conditioning systems rated?

• 95°F outdoors - 70°F DB - 50% indoors

• 95°F outdoors - 75°F DB - 50% indoors

• 95°F outdoors - 80°F DB - 50% indoors

• 100°F outdoors - 80°F DB - 60% indoors

At typical operating conditions, the standard air-conditioning system will operate with an evaporator boiling point of (a)   °F.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4

A normal evaporator superheat at the evaporator outlet in a standard efficiency air-conditioning system operating under design conditions will be (a)   °F.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

NGSS.MS-PS1-4

A more accurate rating system for air-conditioning equipment that takes into consideration operation during the complete cycle is the (a)   standard.

Tags

NGSS.MS-PS3-3

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

The (a)   rating is a steady-state rating and does not account for the time the unit operates before reaching peak efficiency.

Since the evaporator absorbs both sensible and latent heat, humidity must be taken into account and considered part of the load on the evaporator.

• True

• False

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

NGSS.MS-PS1-4

High efficiency condensers can actually be too efficient on cool days.

• True

• False

Tags

NGSS.HS-PS3-4

The larger the EER rating, the less efficient the equipment.

• True

• False

Tags

NGSS.MS-PS3-3