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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Building Construction
In clay soil

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Swelling and shrinkage characteristics prevail
Differential settlement is generally prevalent
Consolidation continues even after several years of construction

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Building Construction
Grillage foundation

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

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