Chapter 6

Question 1

Where does hardwood come from?

Answer 1

Deciduous Trees

Question 2

Where does softwood come from?

Answer 2

Coniferous Trees

Question 3

In wood structural design what is creep?

Answer 3

Gradual deformation of the material due to sustained loads.

Question 4

What does the sawn lumber moisture content have to be less than?

Answer 4

Less than or equal to 19%

Question 5

What does the engineered moisture content have to be less than?

Answer 5

Less than or equal to 16%

Question 6

In wood design what type of bolts should be used?

Answer 6

Nothing greater than an A307

Question 7

A split ring connection goes from wood to ______?

Answer 7

Wood to wood

Question 8

A shear plate connection goes from wood to _____?

Answer 8

Wood to steel

Question 9

Lag screws may be used to resist what forces?

Answer 9

Shear and tension

Question 10

T/F, Lag screws require a lead hole?

Answer 10

True

Question 11

Lag screws may be loaded in withdrawal from the side grain or end grain of wood members. However what is the reduction that occurs in this scenario?

Answer 11

25%

Question 12

T/F All Screws within wood construction require a lead whole?

Answer 12

True

Question 13

T/F You should never put a screw or wood nail in a piece of wood at the end grain withdrawal.

Answer 13

True

Question 14

What is the Hankinson Formula?

Answer 14

The formula to design wood connections with respect to parallel and perpendicular loading