G-2

Question 1

What is falsework?

Answer 1

Temporarily support framework

Question 2

What is the purpose of form sheathing?

Answer 2

To support and shape the fresh concrete

Question 3

What are mushroom caps used to protect against?

Answer 3

Impalement, cuts and scratches.

Question 4

Who is responsible for preparing a plan for all formwork that could possibly cause injury to any person?

Answer 4

The employer

Question 5

What must a P.Eng. sign before each concrete placement?

Answer 5

An inspection certificate

Question 6

What should be done if any settlement or distortion of the formwork happens.

Answer 6

If distortion happens the placing of concrete must stop until the formwork has been strengthened and specified and inspected by a professional engineer

Question 7

What species and grade of lumber would be a good choice for formwork?

Answer 7

Fir/Larch and Grade #2 and better

Question 8

What is commonly done to concrete forms prior to each use?

Answer 8

Lubricated with a product (usually an oil) that provides for form release

Question 9

List two kinds of ties that are stamped from sheet metal

Answer 9

Strap ties and quickstrip

Question 10

Describe a coil toil

Answer 10

The coil of wire that forms the threat at both ends of the tie

Question 11

Describe overlaid plywood

Answer 11

Formply that has one face covered with and resin-impregnated paper

Question 12

What is the purpose of a reglet?

Answer 12

Counter flashing fits into the reglet and overlaps roofing material to form a watertight seal

Question 13

What are control joints used for?

Answer 13

To control random cracking?

Question 14

What is the difference between an isolation joint and a control joint?

Answer 14

An isolation joint is a space between members that prevent cracking. A control joint controls random cracking

Question 15

What type of blade is used to cut control joints in hardened concrete?

Answer 15

Diamond toothed blade

Question 16

Why is the floor slab not cast directly onto the footing?

Answer 16

To allow settling without cracking

Question 17

What is the minimum depth of a control joint for a slab on grade?

Answer 17

1/4 slab thickness

Question 18

What material is used for a give and take strip?

Answer 18

impregnated fibre board

Question 19

Describe three ways of making a control joint in a slab-on-grade

Answer 19

tooled, zip strip and surface cut after 24 hrs. of curing

Question 20

What is formwork?

Answer 20

Formwork supports and shapes fresh concrete

Question 21

What is one of the biggest fly forms?

Answer 21

Slab table

Question 22

What is the purpose of a strong-back?

Answer 22

To support and align formwork?

Question 23

How many pounds can a quick strip tie carry?

Answer 23

1500 lbs

Question 24

What tie can carry of 30 000 lbs?

Answer 24

Taper ties

Question 25

Describe a taper tie

Answer 25

Taper ties are heavy steel rods that are tapered from one end to another

Question 26

What angle should braces be at?

Answer 26

40 to 60 (book says 53)

Question 27

What interval should braces be placed at?

Answer 27

every 8ft every 6ft if building is much taller

Question 28

What is architectural concrete?

Answer 28

Architectural concrete is for looks (details, shapes, statues, etc)

Question 29

What is required for architectural concrete?

Answer 29

Good formwork, plywood, tie placement, good cement

Question 30

Do all form ties have the same tensile strength?

Answer 30

No

Question 31

What are some ways to prevent deflection?

Answer 31

-Put more supports, less space between braces. -Place ties, whalers, closer

Question 32

What joint prevents random cracking?

Answer 32

Control joints

Question 33

What is the main function of a form tie?

Answer 33

-Hold formwork together, clamp system together -Taper ties don't have spacers

Question 34

What type of stock should u always have? (wet or dry?)

Answer 34

Always have partially seasoned stock

Question 35

What is the best wood for plywood?

Answer 35

Douglas fir

Question 36

What is the best thickness for plywood?

Answer 36

3/4

Question 37

What is attached to strong backs?

Answer 37

Braces

Question 38

What is a reglet?

Answer 38

Reglet is a groove that can be cut in, meant for counter flashing