Multi Family blueprint reading

Question 1

If an RTU was 10 ton (4,000 CFM), and the economizer was set at 15%, how many CFM of fresh air would be delivered to the conditioned zone?

Answer 1

600 CFM
4,000 x 15%

Question 2

What is infiltration?

Answer 2

How unconditioned air enters a conditioned space

Question 3

What does HEPA stand for?

Answer 3

High Efficiency Particulate Arrestor

Question 4

What is the minimum number of suites in a structure that would make it multifamily?

Answer 4

2 or more individual suites

Question 5

How is an insulations effectiveness measured?

Answer 5

R-value

Question 6

What type of equipment can provide ventilation but does not have a provision to control humidity?

Answer 6

HRV

Question 7

What must be installed in all ductwork that penetrates fire rated walls?

Answer 7

Fire damper

Question 8

What type of HRV system is not coupled with any other HVAC equipment and stands alone with its own ductwork distribution of fresh air and stale exhaust?

Answer 8

Fully dedicated HRV system

Question 9

What makes an MUA indirect fired?

Answer 9

Has a heat exchanger

Question 10

Name 3 areas in a building that are negatively pressurized zones?

Answer 10

Commercial kitchens
Individual suites
Parkade

Question 11

What can be installed in an elevator machine room to eliminate pressurization issues?

Answer 11

Transfer air duct

Question 12

What is the number one reason for positive pressurization in hallways and stairwells?

Answer 12

Provide safe evacuation during a fire

Question 13

What is the most common type of residential multi equipment installation?

Answer 13

Furnace providing HVAC

Question 14

What does a dynamic smoke ventilation system do during a smoke event?

Answer 14

Exhaust smoke or provide clean pressurization air

Question 15

What is the most efficient method of heating multi family structures when space, operation and installation costs are considered?

Answer 15

Baseboard radiant heating

Question 16

What piece of equipment might be used to counteract the effects of high infiltration in a convenience store?

Answer 16

Air curtain

Question 17

Which 2 agencies regulate/test the construction and installation of fire protection devices?

Answer 17

NFPA and ULC

Question 18

What are 3 styles of fire dampers?

Answer 18

Curtain
Single blade
Multi blade

Question 19

What component on a heat pump allows it to heat in the winter and provide cooling in the summer?

Answer 19

4 way reversing valve

Question 20

Short walls built around the perimeter of a building are called?

Answer 20

Parapet walls

Question 21

The roof triangle consists of rise, run and ?

Answer 21

Slope

Question 22

The distance from one edge of the roof to the other is called?

Answer 22

Span

Question 23

If a roof has a run of 12’, what is the span?

Answer 23

24’
Span is double the run

Question 24

What is required to cover the top edge of base or step flashing?

Answer 24

Counter flashing

Question 25

What type of flashing is provided on the top surface of a wall and comes with a drip edge?

Answer 25

Coping

Question 26

If a 2" gas line penetrates the roof, what is the minimum size pitch pan that can be used?

Answer 26

4” x 4” 1” minimum clearance on every side

Question 27

The sides on a gum box must be a minimum of how many inches high?

Answer 27

4"

Question 28

What are the 3 most common materials for metal roofs?

Answer 28

Copper, aluminum and galvanized

Question 29

Which is the most durable roofing material?

Answer 29

Copper

Question 30

What is the recommended ratio for inlets to outlets used for natural ventilation?

Answer 30

1 to 1

Question 31

Which ventilation system allows moisture to be transferred between air streams?

Answer 31

ERV

Question 32

What is the high or positive pressure side of a building called?

Answer 32

Windward

Question 33

What is the low or negative pressure side of a building called?

Answer 33

Leeward

Question 34

What type of equipment gives occupants the most control over room temperature in a motel?

Answer 34

PTAC Packaged terminal air conditioner

Question 35

Name 2 types of solar space heating and the name given to the combination of these systems?

Answer 35

Passive, active Hybrid

Question 36

What type of heat pump is the most common?

Answer 36

Air to air heat pump

Question 37

If there are changes to blueprints during construction, where would these need to be documented?

Answer 37

As built drawings

Question 38

Smoke dampers are designed to close in response to what?

Answer 38

Smoke alarm

Question 39

What is installed in a fire damper to hold it open under normal operating conditions?

Answer 39

Fusible link

Question 40

Grilles and diffusers are found where on an HVAC drawing?

Answer 40

On a callout

Question 41

Which type of damper is designed to stop both heat and fire?

Answer 41

Ceiling radiation damper

Question 42

What must be done to duct when it is to include acoustic insulation?

Answer 42

Upsize the duct as to maintain internal dimensions

Question 43

If you were to install a fire damper in a vertical wall, in horizontal duct, would you order a vertical or a horizontal damper?

Answer 43

Vertical

Question 44

Specifications on a commercial blueprint are called?

Answer 44

Divisions

Question 45

What must be included when installing a heat pump in Alberta?

Answer 45

Back up heating system

Question 46

What is the clearance guideline for a fire damper installed in a floor or wall?

Answer 46

Minimum 1/8" for every 12" of dimension Maximum 2" bigger than the minimum size opening

Question 47

What type of fire damper has the blades out of the airstream?

Answer 47

Type B

Question 48

What must you refer to when installing fire protection devices?

Answer 48

Manufacturer's certified installation instructions

Question 49

What is the minimum rated fire damper that can be installed in a wall with a two (2) hour fire rating?

Answer 49

1.5 hour fire rating

Question 50

Name 3 types of radiant heating?

Answer 50

Wall panels, in floor and ceiling panels

Question 51

Most common type of equipment used to condition (heat/cool) a building?

Answer 51

RTU -roof top unit

Question 52

What do the letters EF stand for on a blueprint?

Answer 52

Exhaust fan

Question 53

What is needed beside a fire damper, to reset the fusible link if a grille or diffuser is not present?

Answer 53

Access door

Question 54

What is the most economical way to heat multi family structures?

Answer 54

Radiant heating

Question 55

Smoke dampers need to be installed at or within ________ of the smoke separation barrier, as well as before the duct takeoffs?

Answer 55

24”

Question 56

If a roof slope is 1 in 8, what is the amount of free ventilation area required in an attic? What if the roof slope is 1 in 6?

Answer 56

1 in 8-1 square foot of free ventilation for every 300 square feet of insulated ceiling area. 1 in 6-1 square foot of free ventilation for every 150 square feet of insulated ceiling area.

Question 57

In a crawl space, what is the unobstructed vent area required for natural ventilation?

Answer 57

1square foot for every 500 square foot floor area

Question 58

Tool used to develop the slope on a roof curb when the roof pitch is given?

Answer 58

Framing square

Question 59

How does a passive solar system get heat?

Answer 59

South facing windows

Question 60

What is the negative effect of a passive solar system?

Answer 60

Not enough heat overnight