The nature of the stress in horizontal members of the truss shown in below figur

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Question
The nature of the stress in horizontal members of the truss shown in below figure may be
Options
A. compressive
B. tensile
C. shear
D. zero
E. all the above.

Correct Answer

tensile

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2. A simply supported wooden beam 150 cm long and having a cross section 16 cm x 24 cm carries a concentrated load, at the centre. If the permissible stress ft = 75 kg/cm² and f_s = 10 kg/cm² the safe load is
Options
A. 3025 kg
B. 3050 kg
C. 3075 kg
D. 3100 kg.

5. The law which states, "within elastic limits strain produced is proportional to the stress producing it", is known as
Options
A. Bernoulli's law
B. Stress law
C. Hooke's law
D. Poisson's law
E. none of these.

7. In a bar of large length when held vertically and subjected to a load at its lower end, its own-weight produces additional stress. The maximum stress will be
Options
A. at the lower cross-section
B. at the built-in upper cross-section
C. at the central cross-section
D. at every point of the bar.

10. A cantilever beam rectangular in cross-section is subjected to an isolated load at its free end. If the width of the beam is doubled, the deflection of the free end will be changed in the ratio of
Options
A. 8
B. 1/8
C. 1/2
D. 2
E. 3

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