Integration with Building Systems and Construction 15% (Mech & Plumb)

Question 1

Example of a VAV System

Answer 1

Question 2

What is the minimum cubic feet per minute per person required to maintain proper Indoor Air Quality?

Answer 2

5 CFM per person

Question 3

What are Grilles?

Answer 3

They REMOVE air from an indoor space adn return it to the HVAC system for reconditioning

Question 4

What are Registers?

Answer 4

SUPPLY conditioned air into an indoor environment

Question 5

What are Diffusers?

Answer 5

PUSH conditioned air into a space in a set pattern for optimal airflow

Question 6

Where is a plenum located?

Answer 6

Between the ceiling and the structural floor above

Question 7

All supply air is connected to what?

Answer 7

Main duct work

Question 8

When fire partitions ar presented what must be provided?

Answer 8

Supply air ducts and openings for return air

Question 9

What is a mixing box?

Answer 9

Adjust the quanity or temperature of air going into a space from the main supply lines

Question 10

What are thermostats connected to?

Answer 10

Mixing box

Question 11

VAV boxes are typically placed where?

Answer 11

Above the ceiling within or near the space it serves

Question 12

Daylight sun pattern example

Answer 12

Question 13

Where do ducts run?

Answer 13

Plenum or chase

Question 14

When a duct passes through a fire rated wall or other assembly it must have what?

Answer 14

Fire stop

Question 15

Most HVAC systems use what for air return?

Answer 15

Duct or plenum

Question 16

What can be used in a fire area for air return a duct or plenum?

Answer 16

Plenum

Question 17

Can a plenum go trhough a stair shaft/well?

Answer 17

NO

Question 18

Access panels must be install in what kind of ceilings?

Answer 18

Gyp

Question 19

Do you need an access panel in a suspended ceiling?

Answer 19

NO since it allows for easy access

Question 20

What does AHU stand for?

Answer 20

Air Handling Units

Question 21

Where should thermostats be located?

Answer 21

• Away from exterior walls
• Away from heat sources and enclosed rooms

Question 22

How high are thermostates installed?

Answer 22

44” to 48”

Question 23

How far away from the inside of glass should air supply (vents) be located?

Answer 23

2”

Question 24

Ducts are noted with two numbers, 10x8, what is the first number and what is the second number represent?

Answer 24

Width and Height

10W x 8H

Question 25

What is a soil stack?

Answer 25

Carries human waste from toilets

Black water

Question 26

What is a waste stack?

Answer 26

Carries waste other than human waste

gray water

Question 27

What is a stack vent?

Answer 27

Connects to a soil or waste stack above the highest fixture and extended through the roof

Question 28

Plumbing Vent/Stack example

Answer 28

Question 29

All fixtures with floor drains must be on a what?

Answer 29

Plumbing trench

Question 30

All plumbing must be within how many feet from a trench?

Answer 30

10’

Question 31

In a multi user toilet room, how many toilets are required to be ADA?

Answer 31

1 or 5%

Question 32

In a multi user toilet room, how many sinks are required to be ADA?

Answer 32

1 or 5%

Question 33

Multi user toilet room example

Answer 33

Question 34

When calculating drinking fountains, is it split between men and women OR total for the buidling?

Answer 34

Total for the building

Question 35

If you have a multi story buillding, when calculating toilets do yo calculated the total per floor or by the entire building?

Answer 35

Per floor

Question 36

What is the distance limited to a toilet?

Answer 36

500 feet

Question 37

An AHU in a gyp board requires what?

Answer 37

Access panel