Related Questions

John, Jack, Joseph and Jordan participated in a running race. Only the winner finished the race in 10 minutes. Which two pieces of information can tell you who the winner was? (i) John finished the race in 16 minutes . (ii) Joseph finished the race earlier than Jack by 2 minutes. (iii) Jack finished the race later than Jordan by 4 minutes. (iv) Jordan finished the race earlier than John by 6 minutes. (v) John finished the race later than Joseph by minutes.
A I and II
B I and IV
C II and III
D II and V
The ratio of endurance limit in shear to the endurance limit in flexure is
A 0.33
B 0.4
C 0.5
D 0.55
The endurance limit in shear of carbon steel can be obtained by multiplying the endurance limit in flexure by a factor of
A 0.45
B 0.55
C 0.65
D 0.75
The endurance limit for a mirror polished material will be __________ as compared to unpolished material.
A Same
B Less
C More
D None of these
Endurance limit or fatigue limit is the maximum stress that a member can withstand for an infinite number of load applications without failure when subjected to
A Dynamic loading
B Static loading
C Combined static and dynamic loading
D Completely reversed loading
Surface endurance limit of gear material is dependent upon its
A Elastic strength
B Yield strength
C Brinell hardness number
D Toughness
The yield point in fatigue loading compared to that in static loading is less. The ratio of ultimate tensile strength to endurance limit of a material subjected to fatigue loading is
A 0.5
B 1
C 1.5
D 2
When a material is subjected to fatigue loading, the ratio of the endurance limit to the ultimate tensile strength is
A 0.20
B 0.35
C 0.50
D 0.65
If the size of a standard specimen for a fatigue testing machine is increased, the endurance limit for the material will
A Have same value as that of standard specimen
B Increase
C Decrease
D None of these
The endurance or fatigue limit is defined as the maximum value of the stress which a polished standard specimen can withstand without failure, for infinite number of cycles, when subjected to
A Static load
B Dynamic load
C Static as well as dynamic load
D Completely reversed load

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