CPII Code Requirements 4

Question 1

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?

Accepted Answer

18 inches

Answer

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

Question 2

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

Accepted Answer

ASTM A615

Answer

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

Question 3

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?

Accepted Answer

NFPA 70 (NEC) Article 250

Answer

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

Question 4

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

Accepted Answer

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

Answer

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.

Question 5

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

Accepted Answer

Yellow background with black legend

Answer

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

(CPII) Certified Public Infrastructure Inspector Practice Test

(CPII) Certified Public Infrastructure Inspector Practice Test

CPII Code Requirements 4