Review spring 2017 JOm - Purdue Universityxe/Forms For Website/FE Review/S2017... · Spring 2017...
Transcript of Review spring 2017 JOm - Purdue Universityxe/Forms For Website/FE Review/S2017... · Spring 2017...
Spring 2017 Review – J. Olek
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Problem #1
P.80 Reference
handbook V. 9.4
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Problem #2
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p. 81 Reference handbook V. 9.4
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Problem #3
Spring 2017 Review – J. Olek
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Problem #4
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p. 81 Reference handbook V. 9.4
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Problem #5
p. 80 Reference handbook V. 9.4
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Problem #6
A 50 mm cube of steel is subjected to a uniform pressure of 200,000 kN/m2 acting on all faces. E=200 GN/m2 and ν=0.25. Determine the strain in each direction
a) ‐ 100µ
b) ‐ 25µ
c) ‐ 850µ
d) 400µ
e) ‐500µ
Determine the change in dimension between two parallel faces of the cube
p. 81 Reference handbook V. 9.4
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Problem #7
p. 80 Reference handbook V. 9.4
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Problem #8
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Problem #9
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Problem #10 (Kaplan, 2014)
p. 80 Reference handbook V. 9.4
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Problem # 11 9 (Kaplan, 2014)
p. 82 Reference handbook V. 9.4
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PRACTICE PROBLEMS
1. It is known that the polar moment of inertia J=�D4/32, what is the torsion stress in a shaft 8in in diameter if the applied torque is T=250ft‐lb?
2. A shaft is subjected to a torque T. The strain at the outside of the shaft is 3.2 x 10‐3.
What is the strain at the center of the shaft?
A) 3.2x10‐3
B) 1.6x10‐3
C) 0
D) ‐3.2x10‐3
A) 2.5psi
B) 30psi
C) 5psi
D) 60psi
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3. A steel bar ad with a constant cross‐sectional area of 1,000 mm2 is subject to four uniaxial
forces as shown below. Calculate the total elongation of the bar, if E = 250 GPa.
A) 2.9 mm, B) 3.5 mm C) 4.8 mm D) 9.6 mm
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4. The following preliminary concrete mix has been designed assuming that the aggregates are in
the oven‐dry condition (NCEES 2014)
Water = 395 lb/yd3
Cement = 693 lb/yd3
Coarse aggregate (SSD) = 1,674 lb/yd3
Fine aggregate (SSD) = 1,100 lb/yd3
The properties of the aggregate are
Property Coarse aggregate
Fine aggregate
Absorption (moisture content at SSD) 0.5% 0.7%
Moisture content as used in the mix 2.0% 6.0%
The amount of water (lb/yd3) that would be used in the final mix is most nearly
A: 206
B: 222
C: 305
D: 388
5. What significant concrete technology advancement was made in the 1930s to provide relief
from internal pressure?
A. Cement‐based composites
B. Air‐entrainment
C. Self‐compacting concrete
D. Non‐destructive testing
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6. Which of the following statements regarding concrete used as a building material are generally
considered to be correct? 1. Commonly composed of water, cement, aggregate, and admixtures
2. Design criteria is established by the American Society of Civil Engineers (ASCE) 3. Concrete
strength is normally tested at 28 days 4. Concrete mixes vary by specific use requirements
A. 1, 2
B. 1, 3
C. 1, 2, 3
D. 1, 3, 4
7 What significant concrete technology advancement was made in the 1930s to provide relief
from internal pressure?
A. Cement‐based composites
B. Air‐entrainment
C. Self‐compacting concrete
D. Non‐destructive testing
8. Which of the following materials are sampled and tested by an inspector at a construction site?
A. Aggregate
B. Hydraulic cement
C. Reinforcing steel
D. Fresh concrete mix
9. What property of a metal refers to its ability to be hammered into sheets?
A. Ductility
B. Thermal conductivity
C. Electrical conductivity
D. Malleability
E. Density
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10. A brick weights 8 lbs in air and 5.5 lbs in water. Determine the volume of the brick
A) 1.09 ft3, B) 0.04 ft3 C) 0.50 ft3 D) 0.83 ft3