WorksheetsCan You Remember? .
Total questions: 15
Worksheet time: 3mins
How can you define an effective water supply?
It allows the backflow of used water into the water supply.
It can provide an insufficient amount of water to all fixtures in a building
It can provide a sufficient amount of water to supply each fixture.
Can control the water level in every fixture
How would you start soldering copper pipe joints?
Place the fitting up to the hub and rotate for several times until the flux is evenly spread
Wipe the excess flux and around the fitting and solder and solder in one operation only. With a propane torch, heat the fitting uniformly around the pipe.
Clean thoroughly both ends of the pipe to a bright finish including the inside of the fittings with emery cloth or fine sand paper.
Apply a tin coat of non-corrosive flux or soldering paste to all cleaned surface of the pipe and fittings.
It is the most popular and generally specified material for drainage in the past several decades. It is durable, conveniently installed, and answer to the most plumbing needs of all types of buildings less than 25 stories high?
Asbestos Pipe
Vitrified Clay Pipe.
Bituminous Fiber Sewer Pipe.
Cast Iron Pipe
We all know that the size of G.I. Pipe is measured by using caliper. How can we measure the inside diameter of the pipe if caliper is not available.
by using a ruler
by using tape measure
by using spring
by using string
What way would you design a septic tank?
Septic tank should be at least 15 meters away from any source of water supply. 2.00 meters from the outside wall of the building
Septic tank should be at least 10 meters away from any source of water supply. 1.00 meters from the outside wall
Septic tank should be at least 5 meters away from any source of water supply. 1.00 meters from the outside wall
Septic tank should be at least 12 meters away from any source of water supply. 2.00 meters from the outside wall
Why Cast Iron Pipe is not applicable in more than 25 stories high building?
Vibration is present in 25-storey high building which loosen the lead calk joint between the pipes causing unwanted sag and water leak.
Basically, this type of pipe is brittle in character and requires stronger support for each pipe installed horizontally to prevent sagging of joints.
This kind of pipe is remarkably superior for embedment in concrete structure for having the same material properties
This type of pipe is light in weight, slightly flexible which could take slight soil movement without danger of cracking or pulling out from its joint.
When should we use a single hub pipe?
Single hub pipe is used for a well-fitted hub and spigot connections.
Single hub pipe is recommended when the length of a pipe needed is more than 150 centimeters long wherein cutting is not necessary.
Single hub pipe is preferred when a piece of pipe needed is shorter than 150 centimeters long. When the pipe is cut, both ends has hub to serve as joint connector.
Single hub pipe is used in lieu of the single hub to do away with caulking of joints. It is cheaper and easily connected using a neoprene rubber sleeves.
Which if the following is not a special feature of Copper Pipe?
It could be used as cold water supply line.
It needs more joints and fairings.
Copper pipe may be used one size smaller than a steel pipe.
It can replace rusted or choked-up sections of galvanized steel pipe.
Which of the statements makes brass pipe become superior material for waste and water supply installations.
Because of its smooth interior surface and high resistance to acid.
Because brass pipe is a suitable pipe for all kind of water system
Because brass pipe it is suitable for underground installation
It is commonly used in residential water supply line and for radiant heating installations.
The thickness of the pipe is twice as that of the standard cast iron pipe.This kind of pipe is remarkably superior for embedment in concrete structure for having the same material properties?
Asbestos Pipe
Lead Pipe
Vitrified Clay Pipe
Bituminous Fiber Sewer Pipe
It is made out of clay, cast into a length of 75 centimeters treated with a glazing compound.The pipe is heated in a large kiln under a temperature of 1370 degrees Celsius, making it impervious to moisture?
Asbestos Clay Pipe
Vitrified Clay Pipe
Galvanized Wrought Iron Pipe
Brass Pipe
A hole in the ground curbed with stones, bricks, concrete hollow blocks, or other materials laid in such a manner as to allow raw contaminated sewage to leach into the soil.
Cespool
Public Sewer Line
Septic Tank P
Privy
It is a receptacle or vault used to collect organic waste discharged from the house sewer. Its main function is to liquefy and precipitate solid waste petrifying odorous materials.
Septic Tank
Storm Drain
Manhole
Sanitary Sewer
It is a public sewer facility that carries regular sanitary wastes only. It terminates in a modern sewage dispersal plant. Rainwater is not permitted to enter into this type of public sewer.
Cespool
Manhole
Combination Public Sewer
Sanitary Sewer
In measuring length of cast iron pipe, the end portion that will enter into the hub is added to the face length of the effective distance. What will you do if both ends are inserted into the hub?
The length remain constant
The length should be doubled
The length should be multiply to number of hub
The length should be added to the number of hub
