Foundations Study Package Three Flashcards
A cutting plane is used to identify a:
Section view
Question 2: Easy math question
What is the formula for calculating the capacity, In Imp Gal, of a rectangular tank?
L x W x Ht x 6.24
What is the length relationship between the run and travel in a 45 degree right angle triangular?
The travel is 1.414 times longer than the run
What is the area of a circle with a radius of 1.585m?
7.89m2
How many inches of water will exert a pressure of ¼ psi?
6.93”
Where would you find the type of plumbing fixtures to be installed?
Specifications
Air is made up of:
Nitrogen, oxygen + other gas
Mercury is how many times more dense than water?
13.6
Convert 17 psig to an absolute pressure
31.73 psia
Which valve cannot be determined, at a glance, to be in the open or closed position?
Globe valve
(blank) means the top edge at which water can overflow from a fixture or device/
Flood level rim
What is the name of the gas, present in sewage piping, that is responsible for “rotten egg” odours?
Hydrogen sulphide
Trap size is determined by?
The size of the fixture outlet pipe
No water closet may be installed in a room that is not:
Properly lighted and ventilated
In order to mark a round pipe in preparation for cutting it with a torch, you would use a:
wraparound
Pipe sizes up to and including 12” are designated by:
approximate ID
Which of the following is NOT the result of failure to properly ream an iron pipe before threading it?
expansion
Plastic piping materials that soften with the application of heat are known as:
thermoplastics
What is the colour of the inking on type “L” copper?
blue
What type of acid is particularly harmful to glass piping?
hydrofluoric
The term in piping, used to designate the centre - face measurement of a fitting, is known as:
Throw
Brass is an alloy of copper and:
zinc
How are glass piping and fittings joined together>
mechanical couplings
A kitchen sink fixture drain requires a cleanout if it changes direction by more than:
90 degrees
A string hanging over the trap weir can cause loss of trap seal due to:
capillary attraction
A trap c/o may be used for:
cleaning the trap only
What height of water would exert a pressure at its base of 50 psi?
115.50 ft
If a shower user gets scalded after a toilet flushes, it is likely due to:
undersized water piping in the building
How tight should the nuts be on the U-bolts that attach a clip to a wire rope?
to manufacturer’s specs, then retorque after an hr’s use
What are softeners for rigging?
Pads applied to sharp corners of a load
What are the requirements for the quality of scaffold planking?
1 Grade 2” x 10” planks w/ the structural strength of spruce or better
What are 3 basic hitch configurations are used for almost all hoisting applications
Basket hitch, vertical hitch and choker hitch
An alloy that has no pasty range is known as:
having a eutectic composition
How is a Flemish eye for a wire rope sling prevented from coming apart?
a mechanically compressed metal sleeve is placed over the eye splice
“S”-trapping can cause loss of trap seal due to:
self-siphonage
How is hard temper copper turned into soft temper
annealing
