n and j are numbers of members and joints in a frame. It contains redundant memb

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Question
n and j are numbers of members and joints in a frame. It contains redundant members if
Options
A. n = 2j - 3
B. n = 3j - 2
C. n < 2j - 3
D. n < j - 2
E. n > 2j - 3

Correct Answer

n > 2j - 3

Strength of Materials problems

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2. An arch may be subjected to
Options
A. shear and axial force
B. bending moment and shear force
C. bending moment and axial force
D. shear force and thrust
E. thrust, shear force and bending moment.

3. While testing a cast iron beam (2.5 cm x 2.5 cm) in section and a metre long simply supported at the ends failed when a 100 kg weight is applied at the centre. The maximum stress induced is :
Options
A. 960 kg/cm²
B. 980 kg/cm²
C. 1000 kg/cm²
D. 1200 kg/cm².

5. The maximum bending moment due to a moving load on a simply supported beam, occurs
Options
A. at the mid span
B. at the supports
C. under the load
D. anywhere on the beam
E. none of these.

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