VIZAG M.T. Exam. 2017- Strength of Materials Quiz 2

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Question 1

For the case of a slender column of the length L and flexural rigidity EI built in its base and free at the top, the Euler’s critical buckling load is

• A
• B
• C
• D

Question 2

A beam ABCD ,6 m along, is supported at B and C, 3 m apart with overhangs AB=2 m and CD=1m . It carries a uniformly distributed load of 100 kN/m over its entire length:

The maximum magnitude of bending moment and shear force are

• A200 kN-m and 250 kN
• B200 kN-m and 200 kN
• C50 kN-m and 200 kN
• D50 kn-m and 250 kN

Question 3

Consider the following statements for a thick-walled cylinder, subjected to an internal pressure:
1) Hoop stress is maximum at the inside radius.
2) Hoop stress is zero at the outside radius.
3) Shear stress is maximum at the inside radius.
4) Radial stress is uniform throughout the thickness of the wall.
Which of the above statements are correct?

• A1 and 4
• B1 and 3
• C2 and 3
• D2 and 4

Question 4

If one end of a hinged column is made fixed and the other end of the hinged is made free, how much is the critical load compared to the original value?

• Aone-fourth
• Bhalf
• CTwice
• Dfour times

Question 5

The diameter of a shaft to transmit 25 kW at 1500 r.p.m.. given that the ultimate strength is 150 MPa and the factor of safety is 3, will nearly be

• A12 mm
• B16 mm
• C20 mm
• D26 mm

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