3/7/22, 2:17 PM
Midterm Examination: ME 530-ME42S22 - Design of Building Piping System and Air Conditioning Duct Works
Midterm Examination
Due Mar 7 at 11:59pm
Points 80
Questions 24
Available Mar 7 at 8:30am - Mar 7 at 11:59pm about 15 hours
Time Limit 120 Minutes
Allowed Attempts 2
Instructions
Directions: Choose the best answer in Multiple Choices and Insert the correct numerical answer in the Numerical Answer Question.
The Midterm Examination has two attempts and 120 mins per attempt.
Good Luck!
Attempt History
Attempt
Time
Score
KEPT
Attempt 2
8 minutes
80 out of 80
LATEST
Attempt 2
8 minutes
80 out of 80
Attempt 1
32 minutes
78 out of 80
Score for this attempt: 80 out of 80
Submitted Mar 7 at 2:17pm
This attempt took 8 minutes.
Question 1
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2 / 2 pts
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Midterm Examination: ME 530-ME42S22 - Design of Building Piping System and Air Conditioning Duct Works
The opposite of a trim compressor, a base compressor is expected to be mostly loaded. If the
compressed air system has only one compressor, the requirements of the Energy Standards require that
the single compressor be treated as a trim compressor.
Correct!
Base compressor
Trim compressor
Online compressors
Back-up compressors
Question 2
2 / 2 pts
An NFPA code where contains Recommended Practice for Fire Department Operations in Properties
Protected by Sprinkler and Standpipe Systems
NFPA 13R
NFPA 13
NFPA 13D
Correct!
NFPA 13E
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Midterm Examination: ME 530-ME42S22 - Design of Building Piping System and Air Conditioning Duct Works
Question 3
2 / 2 pts
Foam extinguishing systems are effective for rapidly controlling and extinguishing flammable liquid fires.
Gaseous Fire Suppression Systems
Dry Chemical Fire Suppression Systems
Correct!
Foam Fire Suppression Systems
Special Hazard Fire Protection Systems
Question 4
2 / 2 pts
A system that delivers mechanical energy (Pneumatic System), process air supply (mixing, agitation),
drying and cleaning.
Fire Protection System
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Midterm Examination: ME 530-ME42S22 - Design of Building Piping System and Air Conditioning Duct Works
Compressor
Pipes
Correct!
Compressed Air Piping System
Question 5
2 / 2 pts
ACFM stands for?
Correct!
ACTUAL MEASUREMENT OF COMPRESSED AIR
EQUIVALENT TO FREE AIR AT 0 PSIG
EQUIVALENT TO FREE AIR AT 10 PSIG
ACTUAL CUBIC FOOT PER MINUTE
Question 6
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2 / 2 pts
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Midterm Examination: ME 530-ME42S22 - Design of Building Piping System and Air Conditioning Duct Works
Demand for water by a plumbing fixture varies according to its type and the occupancy category of the
building in which it is installed.
Fixture Unit
Minimum supply pressure
Drainage Fixture Units
Correct!
Supply Fixture Units
Question 7
2 / 2 pts
A compressor that is designated for part-load operation, handling the short term variable trim load of
end uses, in addition to the fully loaded base compressor
Back-up compressors
Correct!
Trim compressor
Base compressor
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Midterm Examination: ME 530-ME42S22 - Design of Building Piping System and Air Conditioning Duct Works
Online compressors
Question 8
2 / 2 pts
An NFPA code where contains Standard for the Installation of Sprinkler Systems.
NFPA 11
Correct!
NFPA 13
NFPA 12
NFPA 10
Question 9
2 / 2 pts
It is the most economic for throttling flow and it can be hand controlled.
Correct!
Globe Valve
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Midterm Examination: ME 530-ME42S22 - Design of Building Piping System and Air Conditioning Duct Works
Butterfly Valve
Check Valve
Valve
Question 10
2 / 2 pts
A design factor that represents a probable flowrate of a plumbing fixture. The number of fixture units
depends on the volume of water required, the average duration of a single-use, and the number of uses
per unit time.
Correct!
Fixture Unit
Minimum supply pressure
Drainage Fixture Units
Supply Fixture Units
Question 11
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2 / 2 pts
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Midterm Examination: ME 530-ME42S22 - Design of Building Piping System and Air Conditioning Duct Works
Accessories in piping where the functions are to block the flow, throttle, and prevent flow reversal.
Correct!
Valve
Check Valve
Globe Valve
Butterfly Valve
Question 12
2 / 2 pts
SCFM stands for?
EQUIVALENT TO FREE AIR AT 10 PSIG
Correct!
EQUIVALENT TO FREE AIR AT 0 PSIG
EQUIVALENT TO FREE AIR AT 14.7 PSIG
ACTUAL MEASUREMENT OF COMPRESSED AIR
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Midterm Examination: ME 530-ME42S22 - Design of Building Piping System and Air Conditioning Duct Works
Question 13
2 / 2 pts
Designed to detect and extinguish fires in locations where standard suppression systems are not
appropriate or adequate.
Gaseous Fire Suppression Systems
Correct!
Special Hazard Fire Protection Systems
Foam Fire Suppression Systems
Dry Chemical Fire Suppression Systems
Question 14
2 / 2 pts
It prevents flow reversal and does not completely shut off reverse flow.
Valve
Butterfly Valve
Globe Valve
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Correct!
Midterm Examination: ME 530-ME42S22 - Design of Building Piping System and Air Conditioning Duct Works
Check valve
Question 15
2 / 2 pts
All compressors that are available to serve peak load.
Back-up compressors
Correct!
Online compressors
Trim compressor
Base compressor
Question 16
2 / 2 pts
An NFPA code where contains Standard for the Installation of Standpipe and Hose Systems.
NFPA 12
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Midterm Examination: ME 530-ME42S22 - Design of Building Piping System and Air Conditioning Duct Works
NFPA 11
Correct!
NFPA 14
NFPA 13
Question 17
2 / 2 pts
Those compressors are not used to meet peak compressed air flow loads. It can be physically
connected to the compressed air piping system and can be automatically controlled to turn on if one of
the other compressors on the system fails. It does not normally operate.
Base compressor
Correct!
Back-up compressors
Online compressor
Trim compressor
Question 18
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2 / 2 pts
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Midterm Examination: ME 530-ME42S22 - Design of Building Piping System and Air Conditioning Duct Works
Can extinguish a fire before it becomes detectable to the eye, thus protecting resources from damage
and businesses from any major interruptions.
Gaseous Fire Suppression Systems
Special Hazard Fire Protection Systems
Correct!
Dry Chemical Fire Suppression Systems
Foam Fire Suppression Systems
Question 19
2 / 2 pts
An important component of a building’s safety plan, regardless of whether it’s a commercial facility,
hospital, or educational facility.
Correct!
fire protection system
Elevator system
Safety Plan System
Building Plan System
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Midterm Examination: ME 530-ME42S22 - Design of Building Piping System and Air Conditioning Duct Works
Question 20
2 / 2 pts
Carbon dioxide is a clean and non-flammable gas that is commonly used as a fire-extinguishing agent
for areas that are not typically occupied by people. CO2 efficiently and effectively extinguishes fires
without leaving any toxic or liquid residue that might damage property or equipment.
Correct!
Gaseous Fire Suppression Systems
Dry Chemical Fire Suppression Systems
Special Hazard Fire Protection Systems
Foam Fire Suppression Systems
Question 21
10 / 10 pts
Calculate the total head loss (ft) of the following system.
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Correct!
Correct Answers
Midterm Examination: ME 530-ME42S22 - Design of Building Piping System and Air Conditioning Duct Works
24.15
0 (with margin: 0)
0 (with margin: 0)
Between 23.5 and 24.8
0 (with margin: 0)
Question 22
10 / 10 pts
1” S40 galvanized steel pipe delivers 20 GPM of water. Calculate pressure drop per length of water flow
(kPa/m) using Moody diagram.
Correct!
3.55
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Correct Answers
Midterm Examination: ME 530-ME42S22 - Design of Building Piping System and Air Conditioning Duct Works
0 (with margin: 0)
0 (with margin: 0)
0 (with margin: 0)
Between 3.05 and 4.05
Question 23
10 / 10 pts
Given a system with 4 base compressors with capacities of 100 acfm (Compressor A), 300 acfm
(Compressor B), 500 acfm (Compressor C), and 900 acfm (Compressor D), what is the Largest Net
Capacity Increment?
Correct!
Correct Answers
300
0 (with margin: 0)
300 (with margin: 0)
0 (with margin: 0)
0 (with margin: 0)
Question 24
10 / 10 pts
Calculate the total pressure loss (psi) of the following system.
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Correct!
Correct Answers
Midterm Examination: ME 530-ME42S22 - Design of Building Piping System and Air Conditioning Duct Works
10.47
0 (with margin: 0)
0 (with margin: 0)
0 (with margin: 0)
Between 10 and 11
Quiz Score: 80 out of 80
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