Structural Analysis Mcqs

Q:

Distribution factor is the ratio in which force sharing capacity of various members meeting at a rigid joint.

A) True B) False
 
Answer & Explanation Answer: B) False

Explanation: Distribution factor is the ratio in which moment sharing capacity of various members meeting at a rigid joint.

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3
Q:

When a structural member of the uniform section is subjected to a moment at one end only, then the moment required so as to rotate that end to produce a unit slope, is called _____

A) Resistance of member B) Stiffness of member
C) Capacity of member D) Potential of member
 
Answer & Explanation Answer: B) Stiffness of member

Explanation: When a structural member of the uniform section is subjected to a moment at one end only, then the moment required so as to rotate that end to produce a unit slope, is called stiffness of the member. Stiffness is basically a measure of the ability of the member to resist rotational deformation.

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3
Q:

Moment Distribution Method does not consider axial and shear effects for the displacement calculations for the given structure.

A) True B) False
 
Answer & Explanation Answer: A) True

Explanation: The moment distribution method developed by Hardy Cross in 1930 is useful for analysis of indeterminate beams and frames. The method considers the flexural effect and ignores any effect caused due to shear and axial loadings.

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3
Q:

Carryover Moment is defined as ______

A) The moment applied at one end to cause unit slope at the support B) The additional moment applied at one end to completely resist the rotation caused due to external loading
C) The moment developed or induced at one end due to a moment at another end D) The moment applied at one end to cause unit slope at another end
 
Answer & Explanation Answer: C) The moment developed or induced at one end due to a moment at another end

Explanation: Carryover Moment is defined as the moment developed or induced at one end due to a moment at another end. It is useful in calculating stiffness factor and moment distribution for a particular joint.

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3
Q:

Moment Distribution Method is applicable to the determinate and indeterminate structure.

A) True B) False
 
Answer & Explanation Answer: B) False

Explanation: Moment Distribution method developed by Hardy Cross to analyze the indeterminate structures like beams and rigid jointed frame with internal hinges also.

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2
Q:

How many degrees of freedom are counted for an internal pin support while calculating DKI?

A) 0 B) 1
C) 2 D) 3
 
Answer & Explanation Answer: B) 1

Explanation: In internal pin support, there is only one possibility of deflection, so no degree of freedom is counted.

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2
Q:

How many degrees of freedom are counted for a roller support while calculating DKI?

A) 0 B) 1
C) 2 D) 3
 
Answer & Explanation Answer: C) 2

Explanation: In roller support, there are two possibilities of deflection, so two degree of freedom is counted.

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3
Q:

How many degrees of freedom are counted for a pin support while calculating DKI?

A) 0 B) 1
C) 2 D) 3
 
Answer & Explanation Answer: B) 1

Explanation: In fixed support, there is one possibility of rotation, so no degree of freedom is counted.

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