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Find the length of part X for the special truss in Figure
13-4 to the nearest 1/8 inch.
Figure 13-4

A foundation excavation is to be dug on the sloping site
shown in Figure 13-5. How many cubic yards of earth must be removed? There are
27 cubic feet in a cubic yard. (Hint: Divide the cross section of the
excavation into a rectangle and a triangle.) Round the answer to 1 decimal
place.
Figure 13-5

The bricklayer’s hammer, also called a mason’s hammer or
simply brick hammer, has a square face and a chisel-like cutting edge (Fig.
14-27). Like claw hammers, bricklayer’s hammers are also available with wood,
steel, or fiberglass handles and in different weights. The flat face of the
hammer is used for occasional nailing and for striking cold chisels. The other
end of the hammerhead can be used to cut bricks and concrete blocks. The brick
or block is scored on all four sides by striking with the cutting edge, and
then it is broken with a final blow on the score line.
Fig. 14-27

Drive two stakes in the ground about 10 or 15 feet apart.
The depth to which you drive the stakes is not important, but they should be
solidly in place. Do not drive them too deep since you will have to remove them
when you are finished.

1. Ensure that the workpiece is held securely. The rapid
reciprocating motion of the saw can really shake a loose workpiece!
2. Hold the saw comfortably in both hands and pull the
trigger switch to turn the saw on. Then move the selector switch to the desired
position.

1. Cut the pipe to length using a tubing cutter.
2. Ream to remove any metal burrs.
3. Dry-fit the pipe to ensure it goes squarely into the fitting.

1. What type(s) of nails would be most appropriate for
joining 2 3 4s?
2. What type(s) of nails would be most appropriate for
mounting a door frame in its opening?
3. What type(s) of nails would be most appropriate for
applying roof shingles?

1. What type(s) of nails would be most appropriate for
installing finished molding in a room?
2. What type(s) of nails would be most appropriate for fastening
furring (wood nailing strips) to a brick wall?
3. What kind of material or coating would be used to prevent
a lag screw from rusting?

1. What does the abbreviation UNC stand for when used in the
specification for a cap screw?
2. What can be used to prevent a cap screw from vibrating
loose when used on an air compressor?
3. What is the difference between a sheet metal screw and a
cap screw?
4. What type of fastener described in this chapter would be
used to bolt a sheet metal cover together on a heat pump?

1. What sealant would you use to seal the joint where a tile
wall behind a kitchen sink meets a granite countertop?
2. What sealant would you use to conceal joints in interior
window trim?
3. What sealant would you use to seal the joint where exterior
door trim meets metal siding?