Deck 6: Indirect and Special Wastes

Question 1

Backwater valves are typically installed in sanitary stems to prevent:

A)grease from escaping
B)precious metals from entering drainage systems
C)soil and waste products from flowing back to and out of fixtures
D)relief valves from prematurely releasing pressure

Answer 1

C

Question 2

Which type of connection is used in the vast majority of plumbing fixtures in a drainage system?

A)indirect connection
B)side connection
C)direct connection
D)intermittent connection

Answer 2

C

Question 3

Which of these interceptors is designed to catch and collect free-floating fats?

A)oil interceptors
B)grease interceptors
C)sand interceptors
D)special-purpose interceptors

Answer 3

B

Question 4

An air conditioner is most likely to produce what type of waste?

A)special-purpose waste
B)oil
C)condensate waste
D)steam

Question 5

A swimming pool would typically use what type of connection?

A)indirect connection
B)side connection
C)direct connection
D)intermittent connection

Question 6

Condensate waste systems must have indirect connections and should be separately trapped close to equipment.

A)floor sinks
B)standpipes
C)relief valve
D)special-purpose interceptor

Question 7

Laboratories that produce precious-metal shavings and grindings would require what type of interceptor?

A)oil interceptors
B)sand interceptors
C)grease interceptors
D)special-purpose interceptors

Question 8

With an indirect connection, a sewage backflow can develop in a sanitary drain line when a blockage or back-siphonage happens.

Question 9

Condensate waste systems must have indirect connections and should be separately trapped close to equipment.

Question 10

Air gaps provide a higher level of protection than air breaks.

Question 11

Special wastes include all but which of the following?

A)detergent
B)oil
C)chemicals
D)steam

Question 12

Which type of system uses chemicals to change harmful substances to products that are acceptable to sanitary waste sewers and sewage treatment systems?

A)dilution
B)neutralization
C)vacuum
D)backflow

Question 13

Which of the following can be described as an unobstructed vertical distance through the free atmosphere between the lowest opening from a pipe, plumbing fixture, appliance, or appurtenance conveying waste to the flood-level rim of the receptor?

A)air break
B)air gap
C)air valve
D)air containment

Question 14

Which of the following interceptor types would MOST LIKELY be located in a repair garage, or service station?

A)grease interceptor
B)sand interceptor
C)special-purpose interceptor
D)oil interceptor

Question 15

Which of the following can be described as a physical separation which may be a low inlet into the indirect waste receptor from the fixture, appliance, or device indirectly connected?

A)air break
B)air gap
C)air valve
D)air containment