Review #3 Flashcards
The maximum permitted length of a fixture outlet pipe is
1200 mm
The outside water, sanitary and storm drain piping is shown on the ____ plan
Site plan
Measurements for floor heights and drop ceilings, for rough in purposes, are taken from the building _________ drawing
Cross sectional elevation drawing
Which of the following tests may be used on a completed job to test the fixture settings
A. Water test
B. Air test
C. Vacuum test
D. Final test
D. Final test
The minimum temperature required in the water supply to a commercial dishwasher, to ensure bacteria kill is
82 ‘C (180 ‘F)
When water runs continually into the overflow tube in a water closet tank, the fault is likely in the ___ valve
Ballcock valve
Which of the following traps are not permitted
A. A trap with a trap seal depth less than 100mm
B. A drum trap
C. A “p” trap
D. A bell trap
D. A bell trap
What is the maximum number of 90 degree bends which may be used on the trap arm from a water closet?
Two
The minimum size of a yoke vent, used in conjunction with a vent stack, shall not be less than
The smallest pipe to which it is connected
Number of FU allowed to drain to the lower end of a vent stack is
8 FU
In reference to a hot water heating system, the type of air vent required to be used on an inaccessible main would be a ____ vent
Float vent
A hydro massage tub has which of the following?
A. A 2” trap
B. Jets above the water line
C. Correctly sized supply lines
D. One vacuum breaker
C. Correctly sized supply lines
The type of copper most used in a residential hot water heating system is type ____
Type M
The type of copper tube found in the radiation of a hot water heating system is type ___
Type H
The length of a standard pipe wrench is measured between
The face of the heel jaw and the end of the handle
To prevent overflow in a sink that is not fitted with an integral overflow, it is accepted to use a
Standing waste
The maximum number of water closets that may drain to a 3” SOWS is
6
What is the minimum distance a vent may terminate from a property line, other than a property line adjacent to a street?
1.8m
When indirect wastes connect fixtures on three or more storeys, they must have a vent that
Terminates separately
An invert elevation would be an elevation at the ____ of the pipe
Bottom inside
The maximum distance allowed from the trap to the vent is measured from
Trap weir to vent fitting
What is the minimum permissible arm length for an unvented 3” floor drain?
18” (450 mm)
What is the minimum horizontal distance that a vent may terminate from an opening window?
3.5 m
What is the minimum distance that a flow meter should be installed from a fitting?
5 pipe diameters upstream
10 pipe diameters downstream
What is the minimum distance a vent pipe shall terminate above a roof?
6” (150 mm)
What is the minimum distance any vent may terminate above ground?
2m
Minimum distance a vent may terminate above an opening door or window, or an air inlet if the vent is too close horizontally?
1m
Minimum size of a clean out on a 4” branch
3”
An expansion tank for a hot water heating system should be able to accommodate what extra percentage of volume for expansion of water?
3%
A pipe that is connected at its bottom end to a fixture drain and serves a number of fixtures is called a _____ vent
Circuit
The type of heating system most likely to be used in an apartment building would be a ____ return
Reverse
The most upstream valve on a water service is the
Corporation cock
Which type of copper tube is only produced as hard-drawn type?
Type DWV
The type of copper tubing not permitted for vent and drain lines is ____ drawn types ____
Soft drawn types K and L
An end switch is a component of which type of heating control?
Zone valve
If there is a vent on the flow control fitting, where should this vent terminate?
Tee it back to the general venting system
Flow control (grease interceptor)
Water is the most dense at
4 ‘C (39 ‘F)
The minimum size of a sump vent is
2” (max 4”)
What may allow a fixture to self-siphon?
Trap too far below fixture
What is the maximum permitted flow rate to a shower head?
7.6 litres/min
Except for column showers, what is the minimum dimension between two adjacent shower heads?
750 mm (2 1/2 feet)
