Category: Writing

1. A furnace flue is made from four pieces of pipe. After
they are fitted together, each piece of flue pipe is 1 foot 10½ inches long.
What is the total length of the flue?
2. A wiring job requires 43 feet 3 inches of electrical
metallic tubing (EMT). If the EMT is available in 10-foot lengths, how many
pieces are needed, and how much is left over of the last piece?

1. How many pieces of 2.25-inch flooring will be required to
cover a closet floor that is 34.75 inches wide?
2. A certain size wire has a resistance of 3.65 ohms per
1,000 feet. What is the resistance of 10 feet of the wire?
3. The weight of a certain wire is 145 pounds per 1,000
feet. What is the cost of 600 feet of this wire at $1.40 per pound?

What is the width of the wall space without the door in
Figure 9-5?
Figure 9-5

In Figure 7-8, each of 23 courses of siding is equally
spaced. How much of each piece of siding is showing?
Figure 7-8

1. The inside diameter of a tube is 1 1/4 inches. The wall
of the tube is 0.15625 inch thick. What is the outside diameter in inches and
fractional parts of an inch?
2. A piece of PVC pipe 2 feet 3 inches long is cut from a
10-foot piece. How much pipe is left?

According to Figure 7-7, what is the wall thickness of
1-inch schedule 80 pipe?
Figure 7-7

1. The slight sideward motion of a shaft is called end play.
The end play of a motor shaft should not be more than 1/32 inch. One motor has
an end play of 0.0305 inch. Is this end play more than 1/32?
2. The elevation of a foundation is 19.60 inches. A floor
frame is built on top of the foundation, adding another 13 3/4 inches. What is
the elevation at the top of the floor frame in decimal inches?

1. An electrical contractor bills a customer $62.00 per hour
for 4 3/4 hours per day for 5 days. He pays his workers 1/3 of what he bills,
and he pays 1/4 of the bill for materials. How much money is left?
2. A wiring job calls for 32 pieces of 1/2-inch conduit 7
1/2 feet long, 8 pieces 1 3/4 feet long, and 3 pieces 7 2/3 feet long. If 1/5
is added for waste, how many feet of conduit are needed?

Find the width in inches of each opening in the ceiling
register shown in dimension A Figure 8-7.
Figure 8-7

A piece of duct measures 24 inches in length. When 2 pieces are fitted together, 1 1/2 inches are allowed on each end for joining the pieces. If 25 1/2 pieces are joined end-to-end and used on a job, what is the total length of the assembled duct?