WorksheetsLevel 2 Structural Carcassing
Total questions: 30
Worksheet time: 15mins
Where would straps be located for the moving of trusses?
Node points
Bottom Cord
Ridge
Rafter
Select two heavy plant machines required for trusses.
Crane
Forklift
Pallet truck
Rope and pulley
Do trusses have to be treated?
Yes
No
Only in the South West
Just in South East England
How should trusses be stored?
Vertical on bearers
Against a wall
Leaning against the scaffold
You have a Velux to fit in the roof, the trusses either side should be?
Tripled up
Doubled up
Singled
Cut away
Name the tool used to keep the roof straight over 3m?
String line
2 food level
6 foot level
Laser level
The common spacing for trusses is?
400mm
600mm
650mm
800mm
Describe possible outcomes if the roof isn't kept straight?
Felt won't sit correctly
Birds will nest in cracks
Roof will collapse
Slates will kick
What is a sprocket designed to do?
Slow rainwater down
Provide fixings for fascia
Fix sofit to it
Wedge slates up
What is the biggest risk to operatives when working on roofs?
Slips and trips
Falls from height
Cut finger
Broken back
When setting out joists how far in do you come to the inside edge of the first joist?
100mm
1m
50mm
45mm
The correct angle of a ladder is?
75 degrees
35 degrees
70 degrees
80 degrees
What must the distance be that the 1st joist is positioned parallel to a wall?
20mm
50mm
30mm
40mm
How much thicker than the bridging joist should the trimmer and trimming joists be?
100mm
50mm
90mm
80mm
The advantages of herringbone strutting are?
Increased floor strength & prevents twisting
Decreased floor strength & prevents twisting
Prevents the floor from sagging
Allows you to use smaller joists
Which of the following are natural defects?
Knots
Case hardening
Insect attack
Sap pockets
What is the best method of storage for joist materials?
On bearers, evenly supported, left outside
On bearers, evenly supported, well ventilated under a breathable cover
Stacked on top of each other without ventilation
Stacked on end, lent against a wall
What is the highest risk when carrying out structural carcassing?
Vibration white finger
Electrocution
Weills disease
Falling from height
The purpose of a drawing is to know...?
Sizes and layout
Types of timber
Colours and finishes
Start and finish dates of the contract
When craning truss rafters using lifting slings, where must the slings be attached?
Rafter tails
Node points
Apex
Ceiling joist
What is the main advantage of erecting roof trusses at ground level?
Enables any trade to erect the roof
Reduces the need to work at height
Saves money on scaffold
PPE would not be required
The quality of carcassing material would be found in a?
Specification
Schedule
Gantt chart
Receipt
What is essential PPE for work on a roof construction?
Hard hat and high visibility jacket
Boots, googles and dust mask
Knee pads and gloves
Respirator, goggles and ear defenders
What are the materials used for carcassing operations?
Sawn timber and roof trusses
Architraves and skirting
Studwork and plasterboards
Planned timber and roof trusses
The verge to the gable end of the roof can be finished by using?
Bargeboard
Fascia
Soffit
Firing strip
What is the name given to a joist that spans from one wall to another?
Bridging
Trimmer
Trimming
Trimmed
When forming an opening for a roof light in truss rafter roofs.....
Adjacent trusses should be doubled up
Adjacent trusses should be omitted
Trusses should be cut and trimmed to take the roof light
Which type of eaves would be used to slow rain water before it reaches the guttering?
Sprocket eaves
Closed eaves
Close eaves
Open eaves
What is the most common method of supporting joists?
Glue and nail
Screws
Chemical fixings
Steel joist hanger
Which saw is best used to cut timber joists to length?
Rip saw
Cross cut
Jig saw
Pad saw
