engineering recuitment UKPSC Polytechnic Lecturer Mock Test 2024 Construction Materials and Management Bricks and Mortar
Which of these statements are correct?
1. 25% of alumina in brick earth imparts the plasticity necessary for moulding bricks into the required shape.
2. Iron pyrite present in brick earth preserves the form of the bricks at high temperatures.
3. A small quantity of magnesia in brick earth increases shrinkage.
4. Presence of weeds in brick earth makes the brick unsound.1
1, 2 , 3 and 4
2
only 1
3
1 and 4
4
2 and 3