2018 Mechanical Chapter 11

Any portion of a ref. system subject to physical damage shall be approved.

• relocated
• elevated
• isolated
• protected
• 1101.3

Ref. systems having a refgnt. circuit containing more than _ #s of Class A2 refgnt. shall not be changed without prior notification to the code official.

• 30
• 60
• 110
• 220
• 1101.8

Where refrigerating equip. is located outside a bldg. and within _ ‘of a bldg. opening, the equip. shall be regulated by the occupancy classification of the bldg..

• 5
• 10
• 15
• 20
• 1103.2

Large mercantile occupancies for the purpose of regulating refrigerating systems are defined as facilities where more than _ persons gather to purchase personal merchandise.

• 50
• 100
• 300
• 500
• 1103.2, #5

In institutional occupancies, the max. permitted total of all Group A2, B2, A3 and B3 refgnt.s in occupied areas is _ #s.

• 30
• 66
• 550
• 1100
• 1104.2.1

In other than industrial occupancies, which of the following refgnt.s is prohibited for use in high-probability systems for air-conditioning for human comfort?

• A1
• B1
• A2
• A3
• 1104.3.1

For all occupancies, the total permitted amount of all Group A2, B2,A3 and B3 refgnt.s, other than _ , shall not exceed 1,100 #s except where approved.

• R-170, ethane
• R-290, propane
• R-600, butane
• R-717, ammonia
• 1104.3.3

In the Mech. Vent of machinery room shall be discharged a min. _ from property line or any openings

• 3
• 10
• 15
• 20
• 1105.6.1

Fusible plugs and purge systems shall terminate min. _ ‘above grade level.

• 5
• 10
• 15
• 20
• 1105.7

Permanently installed ref. systems containing more than _ pound(s) of flammable, toxic or highly toxic refgnt. or ammonia shall be provided with an emergency pressure control system.

• 1
• 1.5
• 5
• 6.6
• 1105.9