Question

Which of the following is not a characteristic observed in material failure by fatigue fracture ?

a.

Plastic deformation of material does not occur.

b.

Initiation of crack from below the surface does not occur.

c.

Initation of crack occurs on the surface of the machine part.

d.

Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface.

Answer: (b).Initiation of crack from below the surface does not occur.

Interact with the Community - Share Your Thoughts

Uncertain About the Answer? Seek Clarification Here.

Understand the Explanation? Include it Here.

Q. Which of the following is not a characteristic observed in material failure by fatigue fracture ?

Similar Questions

Explore Relevant Multiple Choice Questions (MCQs)

Q. A polymer is termed as an 'elastomer', if its percentage elongation is more than 100%. An elastomer is termed as 'rubber' if its percentage elongation is more than __________ percent.

Q. Current employed in resistance welding ranges from __________ kVA/cm² .

Q. Coating thickness in case of galvanising of steel sheet generally corresponds to the deposition of __________ gms of zinc per m² of steel strip.

Q. Chlorine acts as a bleaching agent only in the presence of

Q. Corona discharge is related to the operation of a/an

Q. Plastics as a material of construction suffer from the drawback of low

Q. 'Cryogenics' is concerned with the generation & use of low temperature in the range of

Q. The capacity of a spring to store energy is called the spring form co-efficient. Stiffness of a spring is measured by the

Q. Which of the following materials has the maximum shrinkage allowance ?

Q. Vibration upto 100 kilo hertz can be most accurately measured by a __________ type accelerometer.

Q. Yield strength of a material is determined by the __________ test.

Q. In fluid flow, and heat and mass transfer, one encounters (i) kinematic velocity (μ), (ii) molecular diffusivity (θ) and thermal diffusivity (α). The units of these quantities are.

Q. Window panes of aeroplanes are normally made of

Q. __________ flux is used for the extraction of metal from its self fluxing ores.

Q. Good design of the casing of a centrifugal pump aims at minimising the

Q. Which of the following is not a dielectric material ?

Q. Magnetic permeability of iron is increased by its

Q. The materials which fracture even at small strains are termed as brittle, while those materials which exhibit an appreciable deformation before failure are termed as

Q. Material of construction of foundary crucible is

Q. Young's modulus of a material is the measure of its

Recommended Subjects

Are you eager to expand your knowledge beyond Basic Chemical Engineering? We've handpicked a range of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!