Chapter 13

Question 1

Mike is selecting an HVAC system for his building. He is concerned about several design consideration and financial factors, including all of the following except:

a. thermal load
b. building occupancy
c. environmental concerns
d. construction manager preference

Answer 1

D. construction manager preference

Question 2

Jocelyn is looking for an all-air system that will offset variations in loads by reheating the previously cooled air supplied to each one. This _______may serve interior or perimeter zones of a building and is considered an older style system.

a. single duct, constant-volume, variable-temperature
b. single-duct, constant-temp, variable-volume
c. VAV fan system with economizer control
d. multizone, constant-volume, variable-temp

Answer 2

a. single duct constant- voulme, variable-temperature systems

Question 3

Brent, a facilities manager in Ontario, Canada, would like to use ______ in conjunction with ceiling diffusers to counteract downdrafts from a cold window and was surface as well as offset heat loss.

Answer 3

Perimeter radiation

Question 4

Leslie’s building has a wide variation in the cooling loa of the perimeter zones, so she has opted to include a(n)___________ in the HVAC system to use outside air for cooling in the winter months.

a. window air-conditioning unit
b. floor fan
c. economized cycle
d. economizer unit

Answer 4

c. economizer cycle

Question 5

A(n) _______, comprised of heating and cooling coils and low-grade replaceable or cleanable filters can be installed at a low initial cost and may be placed in a soffit above a hotel room or school classroom.

Answer 5

Fan coil unit

Question 6

When choosing a type of fan-coil system to install, Ginny selected the most common and least expensive type of fan-coil system arrangement, which is the:
a two-pipe fan-coil system
b. three-pipe fan-coil system
c. four-pipe fan coil system
d. five pipe fan coil system

Answer 6

a. two-pipe fan-coil system

Question 7

Aaron i sworking with a small budgen and specific building requirements. As such, he chose a unit with low initial costs, individual room control, and minimal duct space requirements. These are all advantages of a(n):

a. all-air induction unit
b. air-water induction unit.
c. fan-coil with supplemental air system
d. DX system

Answer 7

b. air-water induction unit

Question 8

A _______ is a vertical, self contained unit that has a water-cooled condenser and may be installed in the interior buildings, usually as a cabinet or console on the floor.

a. through-the-wall unit
b. box car unit
c. rooftop unit
d. split system

Answer 8

b. box car unit

Question 9

In split systems, the evaporator section is equipped with a supply fan, DX cooling coil, and filter section and is located________

a. in the basement
b. outside the building
c. inside the building
d. near the condensing section

Answer 9

c. inside the building

Question 10

Brendan will want to consult ASHRAE __________, one of the key HVAC energy efficiency standards to learn more about ventilation for acceptable indoor air quality standards.

a. 90.1
b. 90.2
c. 62.1
d. 62.5

Answer 10

c. 62.1