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As per elastic theory of design, the factor of safety is the ratio of 

As per elastic theory of design, the factor of safety is the ratio of  Correct Answer Yield stress to working stress

  • As per elastic theory of design, the ratio of yield stress to the working stress is called factor of safety
  • In the elastic theory of design, the only material factor of safety is considered
  • As per ultimate load theory for steel, the ratio of ultimate stress to working stress is called factor of safety

Related Questions

In the question below, are given a statement followed by three courses of actions numbered I, II and III. On the basis of the information given, you have to assume everything in the statement to be true, and then decide which of the following suggested courses of actions logically follow(s) for pursuing. Statement: Starting October, all new cars will have pedestrian safety features, including new design of the bonnet, to reduce impact on pedestrians during accidents. Advanced safety features are needed in all vehicles in India as vehicle safety cannot be confined to luxury vehicles only. Around 1.5 lakh people are killed in road accidents every year in the country, nearly 60% of them are pedestrians.  Courses of action: I. The government has set a target to reduce the number of road deaths by half in the next two years. The ministry of road transport and highways has been issuing new safety standards for the automobiles along with eliminating the black spots on national highways.  II. By next month, all new cars will have pedestrian safety feature, including new design of the bonnet, to reduce impact on pedestrians during accidents.  III. Ministry of road transport and Highways is planning to implement all safety features in vehicles with active support of vehicle manufacturers. Electronic stability control (ESC) and autonomous emergency braking (AEB) will be incorporated in new vehicles by 2022.
Examine the following statements :
i) Factor of safety for steel should be based on its yield stress,
ii) Factor of safety for steel should be based on its ultimate stress,
iii) Factor of safety for concrete should be based on its yield stress,
iv) Factor of safety for concrete should be based on its ultimate stress.
The correct statements are
A lady wants to buy the following items in the given price range- 1. Tomato between Rs. 40 and Rs. 45 per kg. 2. Grapes in the price range of Rs. 80 and Rs. 90 per kg. 3. Milk packets at Rs. 23 per liter. In which shop from the following will she definitely get all her items/ A. Shop S sells tomato at Rs. 22.5 per half kg, Grapes at Rs. 82 per kg and milk at Rs. 24 per liter. B. Shop H sells grapes at Rs. 21 per quarter kg, milk at 12.5 per half litre and tomato at Rs. 22 per half kg. C. Shop O sells milk at Rs. 11.5 per half litre, tomato at 21 per half kg and grapes at Rs. 43 per half kg. D. Shop P sells tomato at Rs. 23.5 per half kg, grapes at Rs. 85 per kg and milk at Rs. 23 per litre.
Below are given two sets in which Set I gives the named theory of Intelligence which set II indicated their main proponents and contentions associated with the theory. Match the two sets. Set I (Theory of Intelligence) Set II (The main proponents and contentions) (a) Multiple Factor Theory (i) Sternberg, intelligence can be taught and the classroom is the logical place to teach it. (b) Theory of Multiple Intelligence (ii) Cattell, intelligence is neither completely monarchic, nor oligarchic nor anarchic. (c) Theory of Fluid and Crystallized Intelligence (iii) Thurstone, intelligence is oligarchic in nature. (d) Coping Theory of Intelligence (iv) Gardner, intelligence is a capacity with component processes and should not be confused with a learning or cognitive style.   Choose correct answer from following.
If Q is load factor, S is shape factor and F is factor of safety in elastic design, the following:
The design stress, which is more than the damaging stress, is the least unit stress that will render a member unfit for service before the end of its normal life. The design stress factor or factor of safety indicates the margin between design stress and the __________ stress.
The conceptual framework of labour welfare is contained in various theories of labour welfare. In the names of the theories given below, pick the wrong ones
1. The Trusteeship Theory
2. The Placating Theory
3. The Need Theory
4. The Friendship Theory
5. The Public Relations Theory
6. The Functional Theory
Which of the following statements are true/false?
1. Trusteeship theory is also known as paternalistic theory.
2. The Philanthropic theory is based on the fact that man is a religious being.
3. The Functional theory is also known as efficiency theory.
4. Efficiency theory assumes that big business houses have the social responsibility and moral obligations of providing good working conditions.
Elastic failure of a material occurs, when the tensile stress equals yield strength, yield point or the elastic limit. Also, the elastic failure occurs according to maximum strain theory, when the maximum tensile strain equals (where, σ = yield strength and E = modulus of elasticity)
Elastic failure of a material occurs, when the tensile stress equals yield strength, yield point or the elastic limit. Also, the elastic failure occurs according to maximum strain theory, when the maximum tensile strain equals (where, $$\sigma $$ = yield strength and E = modulus of elasticity)