Question

What is the top diameter and bottom diameter respectively of the frustum of the cone used in the slump test apparatus that is used to find the consistency of concrete is ____

• A. 15 cm and 25 cm
• B. 10 cm and 30 cm
• C. 15 cm and 30 cm
• D. 10 cm and 20 cm

Answer 1

The correct option is D 10 cm and 20 cm

Slump test specifies the procedure to be performed either in the laboratory during the progress of work or in the field for determining the consistency of concrete, where the nominal maximum size of the aggregate does not exceed 38 mm.

bottom dia = 20 cm
top dia = 10 cm
height = 30 cm
of the mould