INITIALLY CURVED BEAMS MULTIPLE CHOICE QUESTIONS (MCQ) WITH ANSWERS
INITIALLY CURVED BEAMS
MULTIPLE CHOICE QUESTIONS
(MCQ) WITH ANSWERS
MCQ increase clarity and understanding.
The centroid axis does not coincide with
the neutral axis. Maximum stress occurs
on the innermost fiber.
Fig. Initially Curved cross section & Stress Distribution
h_{i} distance of innermost fiber from N.A.
h_{o} distance of outermost fiber from N.A.
Q1. Centroid and neutral axes are

Intersecting

Coincident

Parallel

None
ANS©
Q2. Distance represented between centroid and neutral axis by

X

Y

Z

None
ANS: (d)
Q3. Maximum stress in the curved beam is in the

Innermost fiber

Outermost fiber

Innermost & outermost fibers

None
ANS: (a)
Q4. In which fiber of curved beam, Stress is minimum?

Outermost fiber

Innermost fiber

Outermost & Innermost fibers

None
ANS: (a)
Q5. Maximum stress is present

Bending moment

Axial load

Axial load & bending moment

None
ANS: ©
Q6. Neural axis is

Away from the center of curvature

At the center of curvature

Towards the center of curvature

None
ANS: (c)
Q7. Variation of stress in the beam is

Linear

Parabolic

Exponential

None
ANS: (d)
Q8. Stress variation in beam is

Hyperbolic

Parabolic

Linear

None
ANS: (c)
Q9. Minimum stress in the outermost fiber is

P/A

M/Z

P/A + M/Z

None
ANS: (d)
Q10. In the innermost fiber, stress is

P/A – M/Z

M/Z

P/A

None
ANS: (d)
Q11. Outermost fiber has the stress

M/Z + P/A

P/A

M/Z

None
ANS: (a)
Q12. Curved beams are of

Three types

Four types

One type

None
ANS: (d)
Q13. Types of curved beams are

Two

Four

three

None
ANS: (a)
Q14. For small curvature curved beam

Ratio h/R > 1

Quantity h/R <1

h/R >2

None
ANS: (c)
Q15. Large curvature curved beam

Firstly h/R> 1

Secondly h/R <2

Thirdly h/R >2

None
ANS: (b)
Q16. Initial stress in curved beam
(i) No
(ii) Yes
(iii) Cannot say
(iv) None
ANS. (ii)
Q17. Name formula for stresses in a curved beam.
(i) Hook’s formula
(ii) Lame’s equation
(iii) Winkler Bach Formula
(iv) None
ANS: (iii)
Q18. Winkler Bach Formula
(a) σ_{i} =Mc_{i} /Aer_{o} , σ_{o}=Mc_{i} /Aer_{o}
(b) σ_{i} =Mc_{o} /Aer_{o} , σ_{o}=Mc_{i} /Aer_{o}
(c) σ_{i} =Mc_{i} /Aer_{i}, σ_{o}=Mc_{o} /Aer_{o}
(d) None
ANS: (c)
Q19. Calculate bending moment about the
(a) Centroid axes
(b) neutral Axis
(c) Centroid & neutral axis
(d) None
ANS: (a)
Q20. For rectangular section in initially curved beams,
(a) r^{–} = r_{i} h/2 & r =r_{i} / ln(r_{o}/r_{i})
(b) r^{–} = r_{i} +h/2 & r =r_{i} / ln(r_{o}/r_{i})
(c) r^{–} = r_{i} + h/2 & r =h / ln(r_{o}/r_{i})
(d) None
ANS: (c)
https://www.mesubjects.net/wpadmin/post.php?post=4290&action=edit MCQ Bending Stresses Beams