G3

Question 1

When can footings be cast in excavated forms?

Answer 1

When the ground is stable enough.

Question 2

3 requirements for footings

Answer 2

Placed accurately, correct size, level

Question 3

Maximum size step allowed for a step footing?

Answer 3

24” vertically and horizontally

Question 4

Type of footing that must be weighted or stake is…

Answer 4

Tapered footing

Question 5

Type of footing used under a concrete wall…

Answer 5

Continuous strip footing.

Question 6

Explain how strap ties are secured to the studs

Answer 6

3 nails secured each side

Question 7

Rate of placement is…

Answer 7

Vertical ft per hour of placement.

Question 8

What controls maximum spacing of the studs in a double walker system?

Answer 8

Allowable deflection ratio, 1/400

Question 9

What precautions should be taken when placing the concrete in gang form panels?

Answer 9

Not to drop concrete too fast, must not fall through steel as segregation can occur.

Question 10

Tie spacing used in loose forming vs gang form panels.

Answer 10

Spaced 6ft on Center.

Question 11

Where is a shear plate used?

Answer 11

Connect scaffolding.

Question 12

What are the benefits of using Aluma beams for gang form panels?

Answer 12

Strong, light and easy to use.

Question 13

Composite formwork means?

Answer 13

Uses more than one type of formwork.

Question 14

What is meant by a patented form system?

Answer 14

Engineered
All components fit
Expensive.

Question 15

How do insulated concrete forms(ICF) differ from others?

Answer 15

Not stripped
Remains in place
Provides insulation and vapour barrier

Question 16

Typical ICF components?

Answer 16

Panels and ties

Question 17

Max aggregate size for ICF?

Answer 17

3/4 absolute max.

Question 18

3 ways ICF can be laterally supported at the bottom of a wall

Answer 18

Dowels in wall
Key way
Reduce backfill to 4’ or less

Question 19

3 ways ICF can be laterally supported at the top of a wall.

Answer 19

Floor joists
Use ledger or floor system
Masonry superstructure

Question 20

Which section of a wall should have rebar for above ground ICF walls?

Answer 20

Middle 1/3rd

Question 21

When would FRP(Fiberglass Reinforced Plastic) be used to build column forms?

Answer 21

To achieved a smooth finish.

Question 22

Steel columns are used when…?

Answer 22

Large jobs and there is a high chance of reusability

Question 23

How can a concrete column finish be improved?

Answer 23

Use a plastic liner?

Question 24

What types of materials are conical column capital forms made from?

Answer 24

Prefabed metal or FRP

Question 25

How are column forms held together?

Answer 25

Bolt, clamp and ties

Question 26

How are column forms adjusted to the exact required height?

Answer 26

Cut short and shimmed up?

Question 27

What is attached to rough door and window bucks to keep them from moving after the frames are installed?

Answer 27

Wooden key

Question 28

Why is a buck designed to be slightly larger than the frame to be installed?

Answer 28

To allow for caulking and shimming

Question 29

Why shouldn’t any of the sides, tops or bottoms of bucks run the full length of the buck?

Answer 29

To allow for easier stripping.

Question 30

What is attached to a wall form to create a pocket for a beam?

Answer 30

Block-out

Question 31

Centreline perimeter=

Answer 31

[(Length of building + width of building)X2] - (4X wall thickness)