Worksheetsunit 113 powerpoint 3
Total questions: 18
Worksheet time: 9mins
What is the purpose of the 'O' ring in press-fit fittings?
To add weight
To create a watertight seal
To provide flexibility
To reduce noise
What is used to push press-fit fittings into position?
A hammer
A mechanical crimping tool
By hand
A screwdriver
Which of the following is a characteristic of press-fit fittings?
Requires welding
Uses an 'O' ring
Needs glue
Is soldered
What is the primary material mentioned for the fittings?
Plastic
Copper
Steel
Aluminum
What should be done if a socket depth gauge is unavailable?
Use a ruler to measure and mark
Skip the measurement
Estimate the depth
Use a different method
What safety precaution should be taken when using the press-fit tool?
Wear gloves
Keep fingers away from the jaws
Use a wrench
Apply lubricant
What principle do capillary fittings use to draw solder into the fitting?
Gravity
Capillary action
Magnetic force
Electrical current
What is the purpose of using capillary action in jointing?
To cool the joint
To draw solder into the fitting
To expand the pipe
To create a magnetic field
Why is extra solder not needed in an integral solder ring fitting?
Because it has a built-in rubber seal
Because it has a band of lead-free solder inside
Because it is made of plastic
Because it uses a special adhesive
What is the purpose of twisting the tube slightly when inserting it into the fitting?
To make it fit tighter
To ensure an even spread of flux
To prevent leaks
To align the tube correctly
What is the first step in applying heat to a fitting for copper pipe jointing?
Apply solder wire
Clean with a damp cloth
Apply heat evenly and wait for 10 seconds
Use flux
What should you do to ensure solder flows all around the socket?
Use a damp cloth
Apply more heat
Apply solder wire to the mouth of the fitting
Use a larger pipe
What is the correct method for ordering tees with a mixture of end and branch sizes?
Quote the smallest end, then the largest end, and the branch last.
Quote the branch first, then the largest end, and the smallest end.
Quote the largest end, then the smallest end, and the branch last.
Quote the smallest end, then the branch, and the largest end last.
Which type of reducing tee has one end reduced?
Reduced branch
Reduced end
Reduced end and branch
Two reduced ends (pendant tees)
Which reducing tee type is used when only the branch needs to be reduced?
Reduced end
Reduced branch
Reduced end and branch
Two reduced ends (pendant tees)
What is the main advantage of using press-fit fittings over traditional soldering methods?
Requires less skill
Is more expensive
Needs more time
Is less reliable
Which tool is essential for ensuring a proper seal in press-fit fittings?
A hammer
A mechanical crimping tool
A screwdriver
A wrench
What is the purpose of using flux in copper pipe jointing?
To clean the pipe
To prevent oxidation
To add strength
To cool the joint
