Chapter 16

Question 1

The design engineer had to carefully consider the height of the buildings top floor wwhen designing the water supply system. After all, to account for the pressure created by the height o fthe plumbing system, the water pressure supplying the system must be _____ the head pressure at the top floor.

a. greater than
b. less than
c. the same as
d. it does not matter.

Answer 1

a. greater than

Question 2

To estimate the _______ load, a facilities manager will want to use the fixture unit and a probability curve to determine the maximum flow that could occur at any instant from use of plumbing fixtures, hose connections and laundry or dishwashing equipment.

a. continual
b. constant
c. intermittent
d. pressure

Answer 2

c. Intermittent

Question 3

When identifying basic pump design configurations, Jeanine has identified wide fluctuations in suction pressure, and therefore wants a more energy-efficient pump drive. Her best choice would be a:

a. low-speed
b. constant speed
c. variable speed
d. high speed

Answer 3

Variable-speed

Question 4

It is good practice to install water hammer ________ near the end of branch piping that feed a quick-closing valve or a cluster of several bathroom fixtures in order to absorb the shock and stop the resultant banging.

a. arresters.
b. pipes
c. shocks
d. flush valves

Answer 4

a. arresters

Question 5

Marshall's building does not have adequate water quantity or pressure. So he must consider alternatives to provide the minimum required pressure. He has deided on a \_\_\_\_\_\_\_\_ tank, which serves two purposes: storing water for domestic use and providing water for fire standpipes and sprinkler systems.
a storage
b. gravity
c. suction
d. constant pressure

Answer 5

b. gravity

Question 6

Non circulating water systems are typically used in _____ buildings. These systems consist of a single supply main in which hot water is piped from the heating source to the fixtures.

a. commercial
b. residential
c. industrial
d. institutional

Answer 6

Residential

Question 7

Aaron has received many complaints about noisy pipes and has pinpointed slamming valves as the cause of the water hammer. He has contracted to outfit the pipes with spring-valves as the cause of the water hammer. He has contracted to outfit the pipes with spring loaded _______ valves, not only to prevent water from flowing backwards through the return main, but to prevent the detrimental water hammer issues, as well.

a. check
b. relief
c. temperature
d. energy

Answer 7

a. check

Question 8

In a sanitary drainage system, waste conveys to a ______, which is any vertical pipe that conveys waste from a higher to a lower level.

a. horizontal branch
b. stack
c. connecting branch
d. cleanout

Answer 8

b. stack

Question 9

When waste enters the sanitary drainage system, it travels from higher to lower elevations by force of gravity from the energy created by the head pressure of the downhilll slope until it reaches the point of:

a. collection
b. holding
c. disposal
d. direction

Answer 9

c. disposal

Question 10

Jordan has noticed an increase in sewer gases and vermin entering occupied spaces through the drainage system and the fixture outlets. In order to prevent this at the system level, the ________ seals must be inspected and refilled to efficiently act as a seal between the piping system and outlets from any fixture.

a. outlet
b. drain
c. valve
d. trap

Answer 10

d. trap

Question 11

To extend the life of the pumps in an electrical pumping system, facilities manager Richard will want to have the lead and lag pumps ________ on a weekly or monthly basis.

a. replaced
b. turned off
c. alternated
d. bled-off

Answer 11

c. alternated