Building Construction
The function of cleats in a roof truss is

To support purlins
To support the common rafter
To prevent the purlins from tilting
All of these

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Building Construction
Grillage foundation

Does not require deep cutting as the required base area with required pressure intensity is obtained at a shallow depth
Is used to transfer heavy structural loads from steel columns to a soil having low bearing capacity
Is light and economical
All listed here

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