Code Requirements Flashcards

Under NFPA 13 requirements for public assembly occupancies, what minimum clearance must be maintained between the deflector of a standard spray sprinkler and the top of storage?

Answer: 18 inches

NFPA 13 requires a minimum 18-inch clearance between sprinkler deflectors and the top of storage to allow proper water distribution pattern development.

Which ASTM standard specification applies to the deformed and plain steel bars most commonly used for reinforcement in public infrastructure concrete work?

Answer: ASTM A615

ASTM A615 covers deformed and plain carbon-steel bars for concrete reinforcement, specifying Grade 40, 60, and 80 rebar commonly used in public infrastructure.

An inspector observes that a new traffic signal pole foundation was installed without a grounding electrode. Which code is most directly applicable to this deficiency?

Answer: NFPA 70 (NEC) Article 250

NFPA 70 (National Electrical Code) Article 250 governs grounding and bonding requirements, including grounding electrodes for electrical equipment such as traffic signal pole foundations.

Under AWWA C651, what disinfection method is required before placing a newly installed water main into service?

Answer: Chlorination to achieve a minimum 50 mg/L free chlorine contact

AWWA C651 requires chlorination of new water mains to achieve a minimum initial chlorine concentration of 50 mg/L, with a 24-hour contact time before flushing.

According to the Manual on Uniform Traffic Control Devices (MUTCD), what color is used for warning signs on public roadways?

Answer: Yellow background with black legend

The MUTCD specifies yellow background with black legend for standard permanent warning signs on public roadways in the United States.

When inspecting a precast concrete manhole, an inspector identifies a crack wider than 0.01 inches. According to ASTM C478, this finding most likely indicates:

Answer: A defect requiring rejection or repair per specification

ASTM C478 limits allowable crack widths in precast concrete manholes; cracks exceeding project specifications (often set at 0.01 inches) are grounds for rejection or required repair.

The concept of 'right-of-way' in public infrastructure code enforcement primarily refers to:

Answer: The strip of land dedicated or reserved for public transportation infrastructure

Right-of-way (ROW) is the legal designation for land set aside for public use to accommodate transportation infrastructure such as roads, sidewalks, and utilities.