The frog of the brick in a brick masonry is generally kept on______________?

A. Bottom face
B. Top face
C. Shorter side
D. Longer side

Which of the following pairs gives a correct combination of the useful and harmful constituents respectively of a good brick earth ?

A. Lime stone and alumina
B. Silica and alkalies
C. Alumina and iron
D. Alkalies and magnesium

Pug mill is used for_______________?

A. Preparation of clay
B. Moulding of clay
C. Drying of bricks
D. Burning of bricks

Which of the following bricks are used for lining of furnaces ?

A. Overburnt bricks
B. Underburnt bricks
C. Refractory bricks
D. First class bricks

The internal size of mould used in brick preparation is__________________?

A. Equal to the size of a fully burnt brick
B. Smaller than the size of a fully burnt brick
C. Greater than the size of a fully burnt brick
D. None of the above

The process of mixing clay, water and other ingredients to make brick is known as______________?

A. Kneading
B. Moulding
C. Pugging
D. Drying

Which of the following ingredients of the brick earth enables the brick to retain its shape ?

A. Alumina
B. Silica
C. Iron
D. Magnesia

Excess of silica in brick earth results in______________?

A. Cracking and warping of bricks
B. Loss of cohesion
C. Enhancing the impermeability of bricks
D. None of the above

The nominal size of the modular brick is_______________?

A. 190 mm x 90mmx 80 mm
B. 190 mm x 190 mm x 90 mm
C. 200 mm x 100 mm x 100 mm
D. 200 mm x 200 mm x 100 mm

The percentage of alumina in a good brick earth lies between________________?

A. 5 to 10%
B. 20 to 30%
C. 50 to 60%
D. 70 to 80%