The stress at which extension of the material takes place more rapidly as compared to the increase in load is termed as the __________ point of the material.
(A) Elastic
(B) Ultimate
(C) Yielding
(D) Breaking

1 Answer

Answer :

(C) Yielding

Related questions

Description : The stress at which extension of a material takes place more quickly as compared to the increase in load, is called (A) Elastic point (B) Plastic point (C) Breaking point (D) Yielding point

Last Answer : (D) Yielding point

Description : The stress at which extension of a material takes place more quickly as compared to increase in load, is called (a) No elastic zone (b) Plastic point (c) Yield point (d) Breaking point

Last Answer : (c) Yield point

Description : The phenomenon of slow extension of materials having constant load, i.e. increasing with the time  is called  (A) Creeping  (B) Yielding  (C) Breaking  (D) None of these 

Last Answer : (A) Creeping 

Description : Failure of a material is termed as fatigue failure, if it fails below the yield point. The resistance to fatigue failure of a material is measured by the (A) Ultimate tensile strength (U.T.S.) (B) Endurance limit (C) Elastic limit (D) None of these

Last Answer : (B) Endurance limit

Description : Non-ferrous metals and hard steels do not exhibit a definite yield point, when pulled in the testing machine and hence for these cases, a better measure of their elastic properties is defined by the __________ stress. (A) Ultimate (B) Yield point (C) Proof (D) None of these

Last Answer : (C) Proof

Description : Cast iron has (A) Very high tensile strength (B) High ductility (C) High malleability (D) Elastic limit close to ultimate breaking strength

Last Answer : (D) Elastic limit close to ultimate breaking strength

Description : Cast iron has (A) High ductility (B) High malleability (C) Very high tensile strength (D) Its elastic limit very close to ultimate breaking strength

Last Answer : (D) Its elastic limit very close to ultimate breaking strength

Description : Cast iron is having very high (A) Proximity between its elastic limit and ultimate breaking strength (B) Ductility (C) Tensile strength (D) All (A), (B) and (C)

Last Answer : (A) Proximity between its elastic limit and ultimate breaking strength

Description : The phenomenon of slow growth of strain under a steady tensile stress, is called (A) Yielding (B) Creeping (C) Breaking (D) None of these

Last Answer : (B) Creeping

Description : According to maximum shear stress failure criterion, yielding in material occurs, when the maximum shear stress is equal to __________ times the yield stress. (A) 0.5 (B) 2 (C) √2 (D) √3/2

Last Answer : (A) 0.5

Description : A material no longer behaves elastically beyond (A) Plastic limit (B) Limiting load (C) Elastic limit (D) Breaking load

Last Answer : (C) Elastic limit

Description : Factor of safety for fatigue loading is the ratio of (a) elastic limit to the working stress (b) Young's modulus to the ultimate tensile strength (c) endurance limit to the working stress (d) elastic limit to the yield point

Last Answer : (c) endurance limit to the working stress

Description : As the elastic limit reaches, tensile strain (A) Increases more rapidly (B) Decreases more rapidly (C) Increases in proportion to the stress (D) Decreases in proportion to the stress

Last Answer : (A) Increases more rapidly

Description : Breaking stress is (a) greater than the ultimate stress (b) Less than the ultimate stress (c) equal to the ultimate stress (d) None

Last Answer : (a) greater than the ultimate stress

Description : Theories of elastic failure while dealing with brittle materials consider the failure criterion as (a) Ultimate stress (b) Yield stress (c) Both ultimate and yield stress (d) None

Last Answer : (a) Ultimate stress

Description : Theories of elastic failure while dealing with ductile materials consider the failure criterion as (a) Ultimate stress (b) Yield stress (c) Both ultimate and yield stress (d) None

Last Answer : (b) Yield stress

Description : Rittinger number which designates the new surface produced per unit of mechanical energy absorbed by the material being crushed, depends on the (A) State or manner of application of the crushing force (B) Ultimate strength of the material (C) Elastic constant of the material (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Description : Fatigue resistance of a material is measured by the (A) Elastic limit (B) Ultimate tensile strength (C) Young's modulus (D) Endurance limit

Last Answer : (D) Endurance limit

Description : The ultimate respiratory substrate, yielding maximum number of ATP molecules, is (a) glycogen (b) ketogenic amino acid (c) glucose (d) amylose.

Last Answer : (c) glucose

Description : Pick up the correct statement from the following: (A) The distance of the eccentric axial load from the C.G. beyond which tension develops, is known as kern distance (B) In visco ... (C) An orthotropic material has different properties in three mutually perpendicular directions (D) All the above

Last Answer : (D) All the above

Description : Hooke's law states that A. the extension is proportional to the load when the elastic limit is not exceeded B. the extension is inversely proportional to the load when the elastic limit is not ... is independent of the load when the elastic limit is not exceeded D. load is dependent on extension

Last Answer : the extension is proportional to the load when the elastic limit is not exceeded

Description : The resistance to fatigue of a material is measured by (a) elastic limit (b) Young's modulus (c) ultimate tensile strength (d) endurance limit

Last Answer : (d) endurance limit

Description : In a ductile material, the strength are (a)Firstly Ultimate >yield > elastic limit (b) Secondly Ultimate > yield =elastic limit (c) Thirdly Ultimate=yield=elastic limit (d) None

Last Answer : (a)Firstly Ultimate >yield > elastic limit

Description : In a brittle material, the strength are (a) Firstly Ultimate >yield > elastic limit (b) Secondly Ultimate > yield =elastic limit (c) Thirdly Ultimate=yield=elastic limit (d) None

Last Answer : (c) Thirdly Ultimate=yield=elastic limit

Description : Rapture stress is (a) Breaking stress (b) Load at the braking point/A (c) Load at the breaking point/Neck area (d) Maximum Stress

Last Answer : (c) Load at the breaking point/Neck area

Description : Fatigue limit improvement by over stressing the metal by successively increasing the load is called coaxing. In fatigue failure, the material fails (A) Below the yield point (B) Above the yield point (C) Below the elastic limit (D) At the elastic limit

Last Answer : Option A

Description : When vaporisation takes place through a blanketting film of gas, the phenomenon is termed as __________ boiling. (A) Pool (B) Nucleate (C) Transition (D) Film

Last Answer : (D) Film

Description : The material in which large deformation is possible before absolute failure by rupture takes place, is known as (a) Ductile (b) Plastic (c) Brittle (d) Elastic

Last Answer : Ductile

Description : Hooke’s law is applicable within (a)Elastic limit (b)Plastic limit (c)Fracture point (d) Ultimate strength

Last Answer : (a)Elastic limit

Description : Maximum principal stress theory for the failure of a material at elastic point, is known  (A) Guest's or Trecas' theory  (B) St. Venant's theory  (C) Rankine's theory  (D) Von Mises' theory

Last Answer : (C) Rankine's theory 

Description : Pick out the wrong statement. (A) The equivalent stiffness of two springs (of equal stiffness 'S') in series is S/2 while in parallel is 2S (B) For a helical spring, deflection is ... is less than the buckling load (D) Modulus of resilience is proportional to (stress at elastic limit)2

Last Answer : (C) Crushing load or columns is less than the buckling load

Description : Cold working of a material results in increase in hardness, which is termed as the __________ hardening. (A) Cold (B) Work (C) Age (D) Induction

Last Answer : (B) Work

Description : At yield point' of a copper wire A. the load hasn't exceeded the elastic limit yet; so, Hooke's law applies B. the load has already exceeded the elastic limit and the material has become ... stage has passed and the wire has snapped already D. Like Brass and Bronze, Copper has no yield poin

Last Answer : the load has already exceeded the elastic limit and the material has become plastic

Description : At yield point of a test piece, the material  (A) Obeys Hooke's law  (B) Behaves in an elastic manner  (C) Regains its original shape on removal of the load  (D) Undergoes plastic deformation 

Last Answer : (D) Undergoes plastic deformation 

Description : The stress necessary to initiate yielding, is considerably  (A) More than that necessary to continue it  (B) Less than that necessary to continue it  (C) More than that necessary to stop it  (D) Less than that necessary to stop it

Last Answer : (A) More than that necessary to continue it 

Description : Factor of safety in machine design is defined as the ratio of ultimate stress to __________ stress. (A) Working (B) Bearing (C) Yield (D) None of these

Last Answer : Option A

Description : Pick out the correct statement. (A) Materials exhibiting high elasticity obey Hooke's law (B) The elastic behaviour of rubber under compression is the same as its behaviour under tension (C) ... to its plastic deformation (D) The stress required to cause plastic flow in polycrystalline material is

Last Answer : Option B

Description : If yielding strength=400N/mm2, the find the permissible shear stress according to ASME standards. a) 72 N/mm2 b) 76 N/mm2 c) 268 N/mm2 d) 422 N/mm2

Last Answer : a) 72 N/mm2

Description : If yielding strength=400N/mm², the find the permissible shear stress according to ASME standards. a) 72 N/mm² b) 76 N/mm² c) 268 N/mm² d) 422 N/mm²

Last Answer : a) 72 N/mm²

Description : Di-calcium silicate (C2S) (A) Hydrates rapidly (B) Generates less heat of hydration (C) Hardens rapidly (D) Provides less ultimate strength to cement

Last Answer : Answer: Option B

Description : Load testing emphasizes on performance under load while stress testing emphasizes on _______ A. Breaking load B. Performance under stress C. Performance under load D. There is no such difference, both are same

Last Answer : A. Breaking load

Description : The working stress method is also known as [ A ] Elastic method [ B ] Load factor method [ C ] Critical method [ D ] All the above

Last Answer : [ A ] Elastic method

Description : The maximum stress below which a material can withstand an infinite number of cycle of stress, is termed as the (A) Fatigue strength (B) Creep strength (C) Resilience (D) Endurance limit

Last Answer : D) Endurance limit

Description : A member which is subjected to reversible tensile or compressive stress may fail at a stress lower  than the ultimate stress of the material. This property of metal, is called  (A) Plasticity of the ... ) Elasticity of the metal  (C) Fatigue of the metal  (D) Workability of the metal

Last Answer : (C) Fatigue of the metal

Description : During a tensile test on a ductile material (A) Nominal stress at fracture is higher than the ultimate stress (B) True stress at fracture is higher than the ultimate stress (C) True stress at fracture is the same as the ultimate stress (D) None of these

Last Answer : (B) True stress at fracture is higher than the ultimate stress

Description : The Mohr's straight theory is based on the following fact: (A) Material fails essentially by shear (B) Ultimate strength of the material is determined by the stress in the plane of slip (C) Failure criterion is independent of the intermediate principal stress (D) All the above

Last Answer : Answer: Option D

Description : A highly elastic material is deformed least on loading and retains its original form on removal of the load. Which of the following is the most elastic material? (A) Steel (B) Glass (C) Rubber (D) Brass

Last Answer : Option A

Description : In case of a hammer crusher, (A) Crushing takes place by impact breaking (B) Maximum acceptable feed size is 30 cms (C) Reduction ratio can be varied by adjusting the distance from cage to hammers (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Description : Pick out the wrong statement. (A) Recycled coarse material to the grinder by a classifier is termed as circulating load (B) Wear and tear in wet crushing is more than that in dry crushing of ... a pipeline which permits the solids to settle down due to reduction in velocity of the dust laden gas

Last Answer : (C) Size enlargement (opposite of size reduction) is not a mechanical operation