WorksheetsCBT Ch 23 Part 2 Plumbing Sys - CHAPTER TEST
Total questions: 35
Worksheet time: 18mins
What is the main difference between a sprinkler system and a standpipe system in building firefighting?
Sprinkler systems are manual while standpipe systems are automatic
Sprinkler systems are automatic while standpipe systems have reserve water supply
Standpipe systems only use fire hoses while sprinkler systems only use sprinkler heads
Sprinkler systems are connected to fire hydrants while standpipe systems use rooftop tanks
How are sprinkler heads in an automatic sprinkler system activated?
By a manual switch at the fire station
Through electronic sensors detecting smoke
When a temperature-sensitive plug melts
By pressure changes in the water system
What happens when the water level gets too low in a standpipe system's rooftop tank?
The system automatically shuts down
Emergency water from fire hydrants is activated
Auxiliary pumps take over the water supply
A float switch activates the main pump to refill the tank
In the event of an electrical system failure, how does the standpipe system continue to function?
It switches to a backup generator automatically
Water is pumped from fire trucks through outside inlets
The rooftop tank gravity feed continues operation
The system becomes non-operational until power returns
Which of the following is true about the standpipe system's design?
It can only be used with sprinkler heads
It must be connected to the building's potable water system
The fire hoses are positioned to protect all areas of the building
It requires constant electrical power to function
What are the primary factors considered when designing process fluid systems?
Chemical composition, liquid quantity, temperature, and pressure
Color, density, viscosity, and toxicity
Storage capacity, pipe diameter, and flow rate only
Only the chemical composition and temperature
Which statement best describes how process fluids are handled in industrial settings?
All process fluids are combined in a single piping system
Process fluids are mixed with regular wastewater
Each process fluid is kept in separate systems based on their properties
Process fluids are always stored in open containers
How is toxic waste that cannot be treated in wastewater treatment plants managed?
It is always released into the environment
It is mixed with regular waste
It is only treated through burning
It can be contained, stored, burned, or treated on site
Why are process fluid systems separated from other systems?
To reduce installation costs
To protect workers and the environment
To increase fluid pressure
To simplify maintenance procedures
Which characteristic of process fluids requires special consideration in system design?
The color of the fluid
The odor of the fluid
Some fluids can corrode metal
The sound the fluid makes when flowing
What is a primary reason for color coding medical gas piping systems in hospitals?
To make the pipes more aesthetically pleasing
To prevent cross connections and ease system tracing
To indicate the temperature of the gases
To show which department installed the pipes
Who is typically responsible for designing plumbing systems in commercial and industrial buildings?
Plumbers
Architects
Engineers
Building managers
Who determines the placement and selection of fixtures such as sinks and toilets in commercial buildings?
Engineers
Plumbers
Building managers
Architects
What special requirement must be met for medical gas piping systems after assembly?
The pipes must be painted
The pipes must be pressure tested
The inside must be sterilized
The outside must be insulated
Which materials are most commonly used in residential and light commercial piping?
Steel and iron
Copper and plastic
Bronze and brass
Aluminum and steel
Which type of copper pipe is required for underground water supply piping and exposed water supply piping in finished structures?
Type L
Type K
Type M
Type DWV
What is the primary advantage of all copper pipe types having the same outside diameter for a given size?
It makes the pipe more durable
It reduces installation time
It eliminates the need for different fittings for each size
It improves water flow efficiency
When would soft temper copper tubing typically be used in plumbing installations?
For all indoor water supply lines
For main drainage systems
For connecting ice makers to water supply
For all exposed piping installations
Which type of copper pipe is appropriate for DWV piping that will be exposed in the completed structure?
Type K
Type DWV
Type L
Type M
What is a key characteristic of DWV fittings?
They are only available in plastic materials
They have protruding edges for better grip
They have smooth intersections to promote unobstructed waste flow
They are only available in sizes up to 2 inches
During which stage of plumbing installation are sinks, lavatories, toilets, and faucets typically installed?
First-rough stage
Pre-foundation stage
Second-rough stage
Finish stage
What is the primary reason tubs and shower bases are installed during the second-rough stage?
To test the water pressure
To allow wall covering materials to be fitted around them
To ensure proper drainage
To meet code requirements
When installing plastic water supply pipe, what is the correct method to determine the total pipe length needed?
Measure only the face-to-face distance
Subtract the fitting allowance from face-to-face measurement
Add one fitting allowance to the face-to-face measurement
Add fitting allowances for both ends to the face-to-face measurement
Which type of plastic pipe is required for hot water plumbing installations?
PVC
CPVC
Standard vinyl
Basic polyethylene
What is the final step when joining plastic pipe and fittings?
Apply cement only to the pipe end
Let the cement dry for 30 minutes
Insert the pipe and rotate one-quarter turn
Clean with water after assembly
What is the first step in preparing copper pipe for soldering after cutting?
Apply flux to the pipe
Clean with a tube brush
Ream the inside of the pipe
Push pipe into fitting socket
When heating the joint during soldering, which part should be heated first?
The fitting
The pipe
The solder
The flux
What indicates that the joint is ready for soldering?
The pipe turns red
The flux starts bubbling
The fitting changes color
The solder starts smoking
How should a newly soldered joint be cleaned?
Let it air dry
Use compressed air
Wipe with a dry cloth
Wipe with a damp cloth
When installing copper tubing with compression fittings, what is the correct sequence?
Cut tube, add ring, tighten nut, ream end
Ream end, cut tube, add ring, tighten nut
Cut tube, ream end, fit nut and ring, tighten
Add ring, cut tube, ream end, tighten nut
What is the primary purpose of using pipe supports in plumbing installations?
To make the pipes look more organized
To prevent joint cracking due to pipe movement
To increase water pressure in the system
To reduce the cost of installation
Which inspection must be completed before pipes and fittings are covered during the second-rough phase?
Final occupancy inspection
Interior trim inspection
Pressure and leak testing
Fixture installation check
What method is NOT commonly used to check for leaks in plumbing systems?
Using compressed air and pressure gauges
Applying soapy water solution to joints
Using electrical conductivity testing
Using smoke or smelly gas
During which stage of plumbing installation are fixtures like faucets and showerheads typically installed?
First-rough stage
Second-rough stage
Pre-inspection stage
Finish stage
Which of the following is NOT a typical item checked during plumbing inspections?
Proper pipe slope in DWV piping
Installation of cleanouts
Paint color of exposed pipes
Proper pipe support installation
