Building Construction
The function of cleats in a roof truss is

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

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Building Construction
Pick up the correct statements from the following:

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

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