Ag Mechanics Unit 9

Grain in lumber is caused by

• Age of the board

• Annual rings

• Special drying techniques

• Stain

Lumber is graded according to its

• appearance and soundness

• color and species

• strength and durability

• cost and length

A crosscut handsaw with very fine teeth would have how many teeth per inch?

• 6

• 10

• 12

• 14

A crosscut handsaw with very coarse teeth would have how may teeth per inch.

• 6

• 8

• 14

• 20

The wood removed by a saw blade leaves an opening called a

• bevel

• channel

• chamfer

• kerf

The back saw gets its name from

• its use as a back-up tool

• its fine teeth

• its stiff back

• its original use in making chair backs

A suitable tool for cutting curves is the

• compass saw

• coping saw

• keyhole saw

• all of these

A bit brace uses

• an auger bit

• an expansive bit

• a screwdriver bit

• all of these

The plane small enough to be used with one hand is the

• jointer plane

• jack plane

• smoothing plane

• block plane

The teeth on a file cut

• best when oiled

• only in soft materials

• only on the backward stroke

• only on the forward stroke