CM 2501 EXAM 2: PART 1
QUESTIONS AND
ANSWERS(GRADED A)
Reinforced concrete is able to resist tensile forces due to the use of ____. -
ANSWER-Rebar
Wood is generally stronger when stressed in a direction ____ to the grain. -
ANSWER-Parallel
Wood is generally weaker in a direction ____ to the grain. - ANSWER-Perpendicular
Following the sign convention used in the text, a simple beam with only gravity loads
acting between the supports would have a ____ bending moment. - ANSWER-
Positive
A simple beam as described in the previous question in ____ on the top surface and
in ____ on the bottom surface. - ANSWER-Compression; Tension
True or False:
Creep is caused by short duration overstressing. - ANSWER-True
True or False:
Steel has a higher yield strength in tension than in compression. - ANSWER-False
True or False:
The need for fire protection is a major disadvantage of structural steel. - ANSWER-
True
Following the sign convention used in the text, a cantilever with only gravity loads
acting on it would have a ____ bending moment. - ANSWER-Negative
A cantilever as described in the previous question in ____ on the top surface and in
____ on the bottom surface. - ANSWER-Tension; Compression
Describe the centroid of an area. - ANSWER-The center of mass or area.
True or False:
The moment of Interia can be described as a measure of resistance to bending and
buckling. - ANSWER-True
____ is the stiffest of the materials listed below. - ANSWER-Steel
____ is much weaker in tension than compression. - ANSWER-Concrete
QUESTIONS AND
ANSWERS(GRADED A)
Reinforced concrete is able to resist tensile forces due to the use of ____. -
ANSWER-Rebar
Wood is generally stronger when stressed in a direction ____ to the grain. -
ANSWER-Parallel
Wood is generally weaker in a direction ____ to the grain. - ANSWER-Perpendicular
Following the sign convention used in the text, a simple beam with only gravity loads
acting between the supports would have a ____ bending moment. - ANSWER-
Positive
A simple beam as described in the previous question in ____ on the top surface and
in ____ on the bottom surface. - ANSWER-Compression; Tension
True or False:
Creep is caused by short duration overstressing. - ANSWER-True
True or False:
Steel has a higher yield strength in tension than in compression. - ANSWER-False
True or False:
The need for fire protection is a major disadvantage of structural steel. - ANSWER-
True
Following the sign convention used in the text, a cantilever with only gravity loads
acting on it would have a ____ bending moment. - ANSWER-Negative
A cantilever as described in the previous question in ____ on the top surface and in
____ on the bottom surface. - ANSWER-Tension; Compression
Describe the centroid of an area. - ANSWER-The center of mass or area.
True or False:
The moment of Interia can be described as a measure of resistance to bending and
buckling. - ANSWER-True
____ is the stiffest of the materials listed below. - ANSWER-Steel
____ is much weaker in tension than compression. - ANSWER-Concrete
