2022 Summer TAB Journal Quiz

Name(Required)

First Last

Email(Required)

Company Name(Required)

Are you an AABC, ACG, or EMA member? (check all that apply)(Required)

AABC

ACG

EMA

None of the above

Duct Leakage Testing

Mike Van Wiechen, TBS, Airwaso Canada, Inc.

1. The make-up air unit in this case study was allowed to leak 534 CFM. Which SMACNA class does this equate to?(Required)

50

12.3

54.25

7.5

Duct Leakage Testing

Mike Van Wiechen, TBS, Airwaso Canada, Inc.

2. What was the final response from the engineer?(Required)

Reverse the fan so air flowed in the opposite direction

Test the ducts according to SMACNA method, leakage class 12

Test the ducts according to SMACNA method, leakage class 13

Clean the air filters and replace the dampers

Quality Construction and the Effect on Pressurization in Surgical Suites

Thi Pham, TBE, Engineered Air Balance Co., Inc.

3. What was the initial solution proposed by the author to help alleviate the excess pressure?(Required)

Utilize one of the smoke evacuation fans as a relief function.

Create a new vent in the connected plenum that would lead outside.

Install a new vent.

Turn off air intake.

Quality Construction and the Effect on Pressurization in Surgical Suites

Thi Pham, TBE, Engineered Air Balance Co., Inc.

4. What was the approximate new differential air pressure once the solution was implemented?(Required)

+.18 in. w.c.

-18 in. w.c.

+.10 in. w.c.

-.10 in. w.c.

Importance of Balancing Agencies Conducting Pre-Construction Audits on Existing Systems

Victor Lakoseljac, VPG Associates, Ltd.

5. According to the article, why are pre-construction audits on existing systems useful?(Required)

They help catch system deficiencies early to avoid delays at the end of projects.

They can help determine whether the proposed project is necessary or not.

They allow TAB agencies to complete their full scope of balancing work before systems are modified or upgraded.

They help assign blame for current system problems.

Importance of Balancing Agencies Conducting Pre-Construction Audits on Existing Systems

Victor Lakoseljac, VPG Associates, Ltd.

6. Which of the following items can be identified during a pre-construction audit of existing mechanical systems?(Required)

Correct outside air to meet new COVID-19 requirements

Fans or pumps not running

Control boxes not communicating

All of the above

5 Common Misconceptions for System Balancing

Mike Wozniak, TBE, Air Systems Engineering, Inc.

7. Which of the following is true, according to the article?(Required)

System balancing can take place so long as equipment is installed

Handwritten balancing reports so that a certificate of occupancy can be issued as soon as possible

Equipment must be installed and the controls ready and verified complete before balancing can occur

You can assume a fan is rotating in the right direction if you can feel air blowing

5 Common Misconceptions for System Balancing

Mike Wozniak, TBE, Air Systems Engineering, Inc.

8. Which of the following is true for hydronic system balancing?(Required)

The operating chemical solution must be added to the system before balancing can occur

Any fluid within the system is sufficient to provide proper readings for balancing

Pumps don’t necessarily need to be installed for the balancing process

Water must be in the system for it to be properly balanced

Ask Why & Where: The Importance of Differential Pressure Locations

Vincent Ciccarella, TBE, Precision Testing & Balancing, Inc.

9. Where was the differential pressure sensor initially located?(Required)

Near OAU-1

Near the pump

In the basement

Near the heating element

Ask Why & Where: The Importance of Differential Pressure Locations

Vincent Ciccarella, TBE, Precision Testing & Balancing, Inc.

10. What was the solution the author offered the building owner?(Required)

Remove the differential pressure sensor in the basement and move it to the roof

Remove the differential pressure sensor on the roof and make an installed but unwired DP sensor in the basement operational

Bleed and feed the system

Reduce the pump's power

Door Sweeps: Sometimes the Simplest Solution is the Best One

Cody S. Shook, PE, TBE, CxA, Precision Flow Engineering, LLC

11. What should an enclosed location with a clear positive or negative pressure feature?(Required)

Acoustical, lay-in or drywall ceilings

Hard-lid, gypsum or fiberglass-reinforced plastic ceilings

Open electrical fixtures and wall penetrations

Slider doors

Door Sweeps: Sometimes the Simplest Solution is the Best One

Cody S. Shook, PE, TBE, CxA, Precision Flow Engineering, LLC

12. The air changes per hour (ACH) for a room designed for positive pressure will be driven by its:(Required)

Exhaust

Plenum

Transformer

Supply

Door Sweeps: Sometimes the Simplest Solution is the Best One

Cody S. Shook, PE, TBE, CxA, Precision Flow Engineering, LLC

13. Why might contractors or building operators be apprehensive of door sweeps?(Required)

They add to construction costs

Their installation is difficult

They are seen as a “bandage” on a larger issue

The difference they make is negligible

Monitor Flow and Velocity for Successful Piping Flush

Robert Kolnes, TBE, CxA, TABITT, LLC

14. What is “bleed-and-feed”?(Required)

Removing glycol from the system as system water is removed

Increasing the exhaust for a space while decreasing the supply

Adding more vents to a space

Feeding freshwater to a hydronic system while bleeding system water

Monitor Flow and Velocity for Successful Piping Flush

Robert Kolnes, TBE, CxA, TABITT, LLC

15. Why is flow velocity important?(Required)

It ensures that the system cools the space properly

Debris will find spaces in the system to settle to contaminate it later

It creates outliers to the building's energy estimates

It causes room pressure to increase rapidly

2022 Summer TAB Journal Quiz

Suggested Drawing Specification

AIA-Format LONG-FORM SPECIFICATION

Section 230593 – TESTING, ADJUSTING AND BALANCING FOR HVAC

AIA-Format SHORT – FORM SPECIFICATION

Section 230593 – TESTING, ADJUSTING AND BALANCING FOR HVAC

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