IN ANSWERING QUESTION 9-46, REFER TO
FIGURE 12-18 IN YOUR TEXTBOOK.
9-46.
Assume that you are laying out a
9-47.
9-48.
9-49.
right angle, but you are using a
50-foot tape instead of a 100-foot
tape, and the distance from D to C
is 15 feet.
You then set the tape
with its 0-foot end on D and its
50-foot end on C.
Your 50-foot
tape will form two legs of a right
triangle if the man running out the
bight draws the tape taut while
holding the 25-foot mark in contact
with what other mark?
1.
20-ft mark
2.
30-ft mark
3.
35-ft mark
4.
40-ft mark
Computing the size of an angle by
the chord method involves the
partial solution of a triangle in
which the only known values are
which of the following
measurements?
1.
The sizes of two angles
2.
The lengths of the sides
3.
The sizes of two angles and
length of one side
4.
The lengths of two sides and
the size of one angle
What method of computing the size
of an angle X involves the partial
solution of a right triangle in
which X is an acute angle and two
sides of the triangle (the side
opposite X and the side adjacent to
X) are measured?
1.
Chord method
2.
Sine method
3.
Tangent method
4.
Sum of squares method
Reading a tape upside down and
obtaining,
for example, 69 instead
of 96 and leaving out an entire
tape length are samples of
1.
natural errors
2.
instrumental errors
3.
personal errors
4.
mistakes
9-50.
Concerning the care of steel tapes,
three of the following statements
represent correct guidelines.
Which one does NOT?
9-51.
9-52.
1.
2.
3.
4.
Whenever a tape is laid across
a gravel road, all drivers
should be warned to slow their
vehicles down before crossing
over the tape
While dragging the tape, the
head chainman should not ask
someone else to help by picking
up the free end
When given a choice between a
tape which has a kink and one
which does not, you should use
the undamaged one when possible
When dragging a tape, keep it
straight
In caring for and maintaining his
steel tapes, a chainman should make
it a practice to take which of the
following steps?
1.
Inspect all tapes weekly
2.
Wipe them dry before storing
them
3.
Coat them from time to time
with light rust-resistant oil
4.
All of the above
Listed are the steps for splicinq a
broken steel tape. Identify the
proper sequence.
A.
Align and rivet the repair stock
at one end of the break.
B.
Insert one rivet at a time and
arrange rivets in a triangular
pattern.
c.
Place the repair stock on the
face of the other section of
the tape, using the calibration
section as a measure for the
break splice.
D.
Use a three-edge file to
partially cut through the
surplus stock.
1.
A, B, C, D
2.
A, C, B, D
3.
C, A, B, D
4.
C, B, A, C
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