Deck 7: Bricks and Blocks

Question 1

This brick has low water absorption and a smooth appearance

A) Engineering
B) Facing
C) Common
D) Fletton
E) Wirecut

Answer 1

A

Question 2

A frog is formed in a brick to

A) Reduce the moisture content
B) Reduce the size
C) Reduce the weight
D) Make it easier to handle
E) Provide a space to lay the mortar

Answer 2

C

Question 3

Clays used in brick manufacture should contain traces of

A) Potash
B) Bauxite
C) Saltpetre
D) Ferrite
E) Alumina

Answer 3

E

Question 4

A pug mill is used to

A) Crush the clay
B) Mix the clay with water
C) Screen the clay to remove stones
D) Remove air from the clay
E) Add air to the clay

Question 5

One advantage of pressed bricks is that they

A) Have irregular shapes
B) Have irregular dimensions
C) Are made from clays with a high plasticity
D) Are made from stiff clays
E) Have perforations

Question 6

A Hoffman kiln is one in which

A) The fire is stationary
B) The fire rotates
C) Steam is used to autoclave the bricks or blocks
D) The kiln reverberates
E) The bricks are stacked on trolleys that move through the kiln

Question 7

Calcium silicate bricks are made from a mixture of

A) Sand and cement
B) Lime and cement
C) Sand and lime
D) Flint and silica
E) Flint and soda

Question 8

Calcium silicate bricks harden when exposed to

A) Carbon dioxide
B) Hydrogen
C) Oxygen
D) Nitrogen
E) Sodium

Question 9

One advantage of blocks compared with bricks is that

A) Blocks are smaller than bricks
B) Blocks are lighter than bricks
C) Blocks have less water absorption than bricks
D) Blocks are cheaper to lay than bricks
E) Blocks have higher compressive strength than bricks

Question 10

This block is low in density and is very easy to cut

A) Dense concrete
B) Loadbearing lightweight concrete
C) Non-loadbearing lightweight concrete
D) Aerated concrete
E) Clay