Strength Of Materials MCQ Questions & Answers

41

The total strain energy stored in a body is termed as

A) Resilience B) Proof resilience C) Modulus of resilience D) Toughness

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Answer & Solution

Answer: Option A

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42

Mohr's circle is used to determine the stresses on an oblique section of a body subjected to

A) Direct tensile stress in one plane accompanied by a shear stress B) Direct tensile stress in two mutually perpendicular directions C) Direct tensile stress in two mutually perpendicular directions accompanied by a simple shear stress D) All of the above

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Answer & Solution

Answer: Option D

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43

A column of length ($$l$$) with both ends fixed may be considered as equivalent to a column of length __________ with both ends hinged.

A) $$\frac{l}{8}$$ B) $$\frac{l}{4}$$ C) $$\frac{l}{2}$$ D) $$l$$

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Answer & Solution

Answer: Option C

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44

In a tensile test, near the elastic limit zone, the

A) Tensile strain increases more quickly B) Tensile strain decreases more quickly C) Tensile strain increases in proportion to the stress D) Tensile strain decreases in proportion to the stress

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Answer & Solution

Answer: Option A

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45

In case of an under-reinforced beam, the depth of actual neutral axis is __________ that of the critical neutral axis.

A) Same as B) Less than C) Greater than D) None of these

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Answer & Solution

Answer: Option B

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46

When a bar is subjected to a change of temperature and its deformation is prevented, the stress induced in the bar is

A) Tensile stress B) Compressive stress C) Shear stress D) Thermal stress

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Answer & Solution

Answer: Option D

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47

A bar of length ‘L’ meters extends by ‘$$l$$’ mm under a tensile force of ‘P’. The strain produced in the bar is

A) $$\frac{l}{{\text{L}}}$$ B) 0.1 $$\frac{l}{{\text{L}}}$$ C) 0.01 $$\frac{l}{{\text{L}}}$$ D) 0.001 $$\frac{l}{{\text{L}}}$$

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Answer & Solution

Answer: Option D

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48

The weakest section of a diamond riveting is the section which passes through

A) The first row B) The second row C) The central row D) One rivet hole of the end row

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Answer & Solution

Answer: Option D

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49

Strain is equal to (where $$l$$ = Original length and $$\delta l$$ = Change in length)

A) $$\frac{l}{{\delta l}}$$ B) $$\frac{{\delta l}}{l}$$ C) $$l \times \delta l$$ D) $$l + \delta l$$

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Answer & Solution

Answer: Option B

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50

In leaf springs, the maximum bending stress developed in the plates is (where W = Load acting on the spring, $$l$$ = Span of the spring, n = Number of plates, b = Width of plates and t = Thickness of plates)

A) $$\frac{{{\text{W}}l}}{{{\text{nb}}{{\text{t}}^2}}}$$ B) $$\frac{{3{\text{W}}l}}{{2{\text{nb}}{{\text{t}}^2}}}$$ C) $$\frac{{2{\text{W}}l}}{{{\text{nb}}{{\text{t}}^2}}}$$ D) $$\frac{{3{\text{W}}l}}{{{\text{nb}}{{\text{t}}^2}}}$$

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Answer & Solution

Answer: Option B

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Strength Of Materials MCQ Questions &amp; Answers | Mechanical Engineering

Strength Of Materials MCQ Questions & Answers | Mechanical Engineering