1. static load
2. dynamic load
3. impact load
4. completely reversed load
completely reversed load
1. straining
2. fatigue
3. creep
4. sudden loading
fatigue
1. is greatly decreased by poor surface conditions
2. remains same irrespective of surface conditions
3. depends mainly on core composition
4. is dependent upon yield strength of material
is greatly decreased by poor surface conditions
1. increases the fatigue strength
2. decreases the fatigue strength
3. has no influence on fatigue strength
4. alone has no influence on fatigue strength
increases the fatigue strength
1. same
2. higher
3. lower
4. depends on other factors
lower
1. acts when external load is applied
2. becomes zero when external load is removed
3. is independent of external loads
4. is always harmful
is independent of external loads
1. best method
2. extremely hazardous
3. has no effect as regards fatigue strength
4. cheapest method
best method
1. surface
2. just below the surface
3. within the core
4. none of the above
none of the above
1. finishing and polishing
2. shot-peening
3. decarburization
4. electroplating
shot-peening
1. a member made of steel will generally be more rigid than a member of equal load-carrying ability made of cast iron
2. a member made of cast iron will generally be. more rigid than a member of equal load carrying ability made of steel
3. both will be equally rigid
4. which one is rigid will depend on several other factors
a member made of cast iron will generally be. more rigid than a member of equal load carrying ability made of steel