The base in a paint is added to? Mark as favorite Copy Link improve the quality of paint make smooth surface hide the surface to be painted all of these Check Answer
The solvent used in cement paints? Mark as favorite Copy Link thinner turpentine water spirit Check Answer
The final setting time of ordinary cement should not be more than? Mark as favorite Copy Link 2 hours 4 hours 8 hours 10 hours Check Answer
The quarrying of stone by the method of wedging is successfully carried out in? Mark as favorite Copy Link sandstones limestones marbles all of these Check Answer
The sedimentary rocks are formed due to? Mark as favorite Copy Link solidification of molten mass lying below or above the earth surface gradual deposition of materials like sand, clay, etc., generally by setting water alteration of original structure under heat and excessive pressure none of the above Check Answer
The wood generally used for railway sleepers is? Mark as favorite Copy Link mango kail babul deodar Check Answer
For railway ballast, the stone should be? Mark as favorite Copy Link soft with a uniform texture hard, heavy, strong and durable hard, tough, resistant to abrasion and durable hard, dense, durable, tough and easily workable Check Answer
The alkaline salt present in the bricks, absorbs moisture from the air which on drying? Mark as favorite Copy Link leaves pores and makes the bricks porous leaves high powder deposit on the brick makes the bricks brittle and weak all of these Check Answer
The percentage of silica in a good brick clay should vary from? Mark as favorite Copy Link 20 to 30% 30 to 40% 40 to 50% 50 to 60% Check Answer
The lime which consists almost entirely of calcium oxide, is called? Mark as favorite Copy Link poor lime rich lime hydraulic lime limestone Check Answer