Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
23-25

Transcribed Image Text:PCE1-
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PX
f(3) Mc FT PS Queu | Engin
https://drive.google.com/file/d/17vbsQL0m-OgzrkIZY6...
an unsupported mode, 11 Lile cape
of
A
0.045 cm2 and weighs 0.90 kg. Assume that the tape is
exactly 30.0 m when supported throughout its length under a
standard pull of 6.0 kg, and its modulus of elasticity is
2.10 x 106 kg/cm².
C Untitl
21. NORMAL TENSION. A 30-m steel tape supported at its ends.
weighs 0.03 kg/m and is of standard length under a pull of
6.5 kg. If the elastic modulus of steel is 2.0 X 106 kg/cm²
and its weight density is 7.9 X 103 kg/cm³, determine the
tension at which the effect of sag will be eliminated by
the elongation of the tape due to increased tension.
22. COMBINED CORRECTIONS. A 30-m tape weighs 12.5 g/m and
has a cross section of 0:022 cm². It measures correctly
when supported throughout under a tension of 8.0 kg and at
a temperature of 20 c. When used in the field, the tape is
only supported at its ends, under a pull of 9.0 kg, and at
an average temperature of 28°C. Determine the distance
24. MEASURING ANGLES WITH
1063.55, 1840.33,
measure
27°C
Rain coming
New +
of
between the zero and 30-m marks.
23. COMBINED CORRECTIONS. A line was found to be 2865-35 m
long when measured with a 30-m tape under a steady pull of
6.5 kg at a mean temperature of 30°C. Determine the correct
length of the line if the tape used is of standard
at 20°C under a pull of 5.5 kg.
length
area of tape to be 0.025 cm²,
kg/cm² " and coefficient
Assume the cross-sectional
elastic modulus as 2.10 X 106
thermal expansion to be
0.0000116/1°c.
PRODUC
O Search
527
TAPE. The sides of a triangle
and 1325.05 m. Determine the
00
IMI

Transcribed Image Text:FT_PS| Queu | Engin C Untitl
https://drive.google.com/file/d/17vbsQLOm-OgzrkIZY6...
A to
long when measured with a 30-m tape under a steady pull of
PDF PCE1 Problem Set_2.pdfiean temperat Open with C. Deteinethe Forrect
length of the line if the tape used is of standard length
at 20°C under a pull of 5.5 kg. Assume the cross-sectional
area of tape to be 0.025 cm², elastic modulus as 2.10 X 106
kg/cm²
and coefficient
of thermal expansion to be
0.0000116/1°c.
PCE1-
PX
f mga t
24. MEASURING ANGLES FITH
1063.55, 1840.33,
three angles in the triangle.
measure
27°C
Rain coming
Co
25. OBSTRUCTED DISTANCES. In the accompanying sketch it is
required to determine the distance between points A and B
which spans a wide and deep river.
measure
385.75 m and 529.05 m,
perpendicular to line ABC.
Lines BD and CE, which
respectively, are estab-
If points D and E are
lished
lined up with A and the length of BC=210.38 m, determine
the required distance.
90°
Page 4
/4
TAPE. The sides of a triangle
and 1325.05 m. Determine the
V
O Search
New +
E
+
0
R
HI IMI
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