Consider the following systems :1. Trusses and purlins2. Suspension system3. Flat grid roof 4. ShellsWhen these are used in single deck industrial structures, the correct sequence in increasing order of spans will be

Consider the following systems :1. Trusses and purlins2. Suspension sy

1.	Consider the following systems :1. Trusses and purlins2. Suspension system3. Flat grid roof 4. ShellsWhen these are used in single deck industrial structures, the correct sequence in increasing order of spans will be
A.	3, 1, 2, 4
B.	1, 3, 2, 4
C.	3, 1, 4, 2
D.	2, 4, 1, 3
Answer» B. 1, 3, 2, 4

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Consider the following systems :1. Trusses and purlins2. Suspension system3. Flat grid roof 4. ShellsWhen these are used in single deck industrial structures, the correct sequence in increasing order of spans will be

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