Computer Aided Design (3161903) MCQs

MCQs of Finite Element Analysis

Showing 51 to 58 out of 58 Questions
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51.
Elements with an aspect ratio of near to ______ generally yield best results in FEA.
(a) 0
(b) 0.5
(c) 1
(d) 2
Answer:

Option (c)

52.
In truss analysis, the reactions can be found by using the equation ______.
(a) R=KQ+F
(b) R=KQ-F
(c) R=K+QF
(d) R=K-QF
Answer:

Option (b)

53.
The total potential energy of an elastic body is defined as _______.
(a) Strain energy - Work potential
(b) Strain energy + Work potential
(c) Strain energy + Kinetic energy - Work potential
(d) Strain energy + Kinetic energy + Work potential
Answer:

Option (b)

54.
The strain energy per unit volume is equal to _________.
(a) (1/2) * Force * Deflection
(b) (1/4) * Force * Deflection
(c) (1/2) * Stress * Deflection
(d) (1/4) * Stress * Deflection
Answer:

Option (a)

55.
As per the penalty approach, the equation of reaction force is _____.
(a) R = -CQ
(b) R = CQ
(c) R = -C (Q-a)
(d) R = -C (Q+a)
Answer:

Option (c)

56.
In the penalty approach, the magnitude of the stiffness constant should be at least _______ times more than the maximum value in the global stiffness matrix.
(a) 10
(b) 100
(c) 1000
(d) 10000
Answer:

Option (d)

57.
The equation for thermal stress in each element is ________.
(a) σ = E (Bq + α Δt)
(b) σ = E (Bq - α Δt)
(c) σ = E (B + α Δt)
(d) σ = E (B - α Δt)
Answer:

Option (b)

58.

In any FEA software, a large amount of mathematical work is done in ________ phase.

(a)

preprocessing
(b)

solution
(c)

postprocessing
(d)

all of the above
Answer:

Option (c)

Showing 51 to 58 out of 58 Questions
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