Building Construction
The function of cleats in a roof truss is

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

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Building Construction
Pick up the correct statements from the following:

Cracks appear on the plastered surface in the form of hair cracks
In brick work, the efflorescence is removed by applying a solution of zinc sulphate and water
Excessive thermal variations in the backing or plaster causes the plaster to fall
All listed here

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