59) Coaxing is the method of increasing

strength by reversible cycling

corrosion resistance by spraying

hardness by surface treatment

fatigue resistance by over-stressing the metal by successively increasing loadings

Answer is:

fatigue resistance by over-stressing the metal by successively increasing loadings

Engineering Materials MCQ with Answers

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60) A beam is loaded as cantilever. If the load at the end is increased, the failure will occur

in the middle

at the tip below the load

at the support

anywhere

Answer is:

anywhere

61) A non-yielding support implies that the

support is frictionless

support can take any amount of reaction

support holds member firmly

slope of the beam at the support is zero

Answer is:

slope of the beam at the support is zero

62) The ratio of elongation in a prismatic bar due to its own weight (W) as compared to another similar bar carrying an additional weight (W) will be

1:2

1:3

1:44

1:2.5

Answer is:

1:3

63) In a prismatic member made of two materials so joined that they deform equally under axial stress, the unit stresses in two materials are

equal

proportional to their respective moduli of elasticity

inversely proportional to their moduli of elasticity

average of the sum of moduli of elasticity

Answer is:

proportional to their respective moduli of elasticity

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59) Coaxing is the method of increasing

fatigue resistance by over-stressing the metal by successively increasing loadings

Engineering Materials MCQ with Answers

Related Engineering Materials MCQ with Answers

60) A beam is loaded as cantilever. If the load at the end is increased, the failure will occur

anywhere

61) A non-yielding support implies that the

slope of the beam at the support is zero

62) The ratio of elongation in a prismatic bar due to its own weight (W) as compared to another similar bar carrying an additional weight (W) will be

1:3

63) In a prismatic member made of two materials so joined that they deform equally under axial stress, the unit stresses in two materials are

proportional to their respective moduli of elasticity

Engineering Materials MCQ with Answers