Building Construction - Section 1 (2)

In horizontal D.P.C, thickness of cement concrete (1 : 2 : 4) is

Pick up the incorrect statement from the following :

A wooden block hinged on post outside a door, is known

The brick laid with its breadth parallel to the face of a wall, is known as

The piece of a brick cut with its one corner equivalent to half the length and half the width of a full brick, is known as

The single stage well point system of dewatering an excavation can be used if the depth of excavation does not exceed

A solid core of rock is formed in side the cylinder in the case of

The line of intersection of the surfaces of a sloping roof forming an external angle exceeding 180°, is