Exercise: Engineering Mechanics

Questions for: Engineering Mechanics

Moment of inertia of a hollow circular section, as shown in the below figure about an axis perpendicular to the section, is __________ than that about X-X axis.
A:
two times
B:
same
C:
half
D:
Answer: A
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According to lami's theorem
A:
the three forces must be equal
B:
the three forces must be at 120° to each other
C:
the three forces must be in equilibrium
D:
if the three forces acting at a point are in equilibrium, then each force is proportional to the sine of the angle between the other two
Answer: D
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The moment of the force P about O as shown in the below figure is
A:
P x OA
B:
P x OB
C:
P x OC
D:
P x AC
Answer: C
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The velocity of a body on reaching the ground from a height h, is
A:
B:
C:
D:
Answer: C
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In a framed structure, as shown in the below figure, the force in the member AB is __________ the force in member AC.
A:
half
B:
equal to
C:
double
D:
Answer: A
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