ESE 2021 Technical Quiz || Plastic Analysis

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Question 1

A propped cantilever beam of uniform moment capacity is shown in figure below.

What is the collapse load W?

• A
• B
• C
• D

Question 2

For an I beam, the shape factor is 1.12. If the allowable stress (with factor of safety in bending as 1.5) is increased by 20% for wind and earthquake loads, the modified load factor is

• A1.10
• B1.25
• C1.35
• D1.40

Question 3

Plastic analysis of structures is applicable to the structures made of which one of the following?

• ADuctile and brittle materials
• BAny structural material
• CBrittle material only
• DDuctile material only

Question 4

A propped cantilever ABCD is shown:

The collapse load for the beam will be

• A12 M_p/L
• B24 M_p/L
• C4 M_p/L
• D6 M_p/L

Question 5

Which of the following is true?

• Aultimate load is reached when a mechanism is formed
  
• Bultimate load is not reached when a mechanism is formed
  
• Cplastic hinges are not required for beam to form a mechanism
  
• Dfrictionless hinges are not required for beam to form a mechanism

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