WorksheetsProcessppt3plenary
Total questions: 25
Worksheet time: 13mins
Copper pipe bends and joints can be classified into different types based on their uses. Which of the following is a correct combination of copper pipe bends and joints?
Elbow, tee, coupling
Bolt, nut, washer, screw
Clamp, bracket, hinge, latch
Plug, socket, switch, fuse
Accurate measurement is important in achieving professional results in plumbing because it:
Ensures proper fitting and prevents leaks
Allows for faster installation regardless of fit
Eliminates the need for planning
Reduces the cost of materials by using less
Fill in the blank: The Small engineers square aids the accurate taking of ________ and is used when bending copper pipe.
measurements
temperatures
voltages
weights
What is the primary use of a metric solid steel ruler when bending copper pipe?
Cutting the pipe
Taking accurate measurements
Holding the pipe in place
Marking the pipe
Why is a ruler preferable to a tape measure when working to precise dimensions?
The tape measure is too short
The end hook of the tape measure can become loose, reducing accuracy
The ruler is heavier
The tape measure is more expensive
What are engineers split rulers good for when bending pipe?
Cutting pipes
Checking angles
Measuring temperature
Painting pipes
Name the tool shown in the image that is used to check angles digitally when bending pipes.
Digital angle finder
Spirit level
Vernier caliper
Pipe wrench
Which of the following tools is required for the production of setting out drawings/templates and marking pipework?
Hammer
Screwdriver
Pencil or marker pen
Wrench
Fill in the blank: It is important to remove the marks from the pipe after fitting because the customer will not wish to see these and it looks a lot more _________
professional
difficult
expensive
fragile
Which tool is preferred for cutting pipe over hacksaws?
Pipe cutters
Reamers
Saws
Pliers
After cutting the pipe, always use a ______ to remove the burr inside as this can restrict flow, increase fluid noise and lead to the possible build-up of scale etc.
reamer
hammer
wrench
screwdriver
Which tool is shown and is described as portable and fairly cheap to purchase?
Upright stand bender
Scissor bender
Hydraulic bender
Electric bender
What is the most popular type of soldering blowtorch?
Electric soldering iron
Blowtorch and cylinder of gas
Soldering gun
Hot air rework station
A blowtorch kit consists of a handle, burner head, hose, and ________ connected to a large gas cylinder, usually propane.
pressure regulator
ignition coil
coolant pump
air filter
What is the primary purpose of a heat proof mat when soldering?
To clean the soldering iron
To protect the fabric of the building from damage by the flame
To hold soldering tools
To cool down the soldered material
Fill in the blank: When using soldering equipment, the flame should be directed away from ______ materials.
combustible
metallic
insulated
reflective
Heat proof mats are completely heat proof and can withstand direct flame indefinitely.
True
False
Lead free solder is required for all ______ water supplies.
potable
industrial
waste
irrigation
Flux allows the solder to run. For best results, the pipe should be cleaned with a suitable pipe cleaner before the ______ is applied.
flux
paint
oil
grease
Why is using the above method to measure the distance between the pipes inaccurate?
It uses a ruler with incorrect units
It relies on guessing the centres of the pipes
The pipes are not straight
The ruler is too short
Bending copper tube is a skill that becomes easier with practice. The tool shown in the image is called a _________.
Scissor bender
Pipe cutter
Tube flarer
Wrench
One advantage of bending copper pipe instead of using fittings is:
It reduces the number of joints and potential leaks.
It increases the number of connections needed.
It makes the installation process slower.
It requires more materials.
The end result of using a bending machine is a professional looking installation with less leakage potential.
True
False
According to the passage, the accuracy of the bends relies upon determining the _______ and the position of the tube in the machine.
bending point
tube diameter
machine speed
operator skill
Why are accurate templates and marking of the tube important when bending copper pipe?
To make the pipe look shiny
To ensure an acceptable degree of accuracy
To make the pipe heavier
To change the color of the pipe
