Building Materials The cast iron when heated to red heat with powdered red haematite in an oven for increasing its toughness, is converted to Mottled cast iron White cast iron Toughed cast iron Grey cast iron Mottled cast iron White cast iron Toughed cast iron Grey cast iron ANSWER DOWNLOAD EXAMIANS APP
Building Materials The coefficient of hardness of stones used in road work should be greater than 15 10 12 17 15 10 12 17 ANSWER DOWNLOAD EXAMIANS APP
Building Materials When a brick is immersed in water for 24 hours and then dried, if 50 percent surface is covered with grey or white deposits, the brick has serious efflorescence All listed here No grey or white deposits appear on the surface, the brick is free from soluble salts 10 percent surface is covered with grey or white deposits, the brick has slight efflorescence 50 percent surface is covered with grey or white deposits, the brick has serious efflorescence All listed here No grey or white deposits appear on the surface, the brick is free from soluble salts 10 percent surface is covered with grey or white deposits, the brick has slight efflorescence ANSWER DOWNLOAD EXAMIANS APP
Building Materials A ferrous metal is Cast iron Steel All of these Wrought iron Cast iron Steel All of these Wrought iron ANSWER DOWNLOAD EXAMIANS APP
Building Materials The type of arch generally constructed over a wooden lintel or over a flat arch for the purpose of carrying the load of the wall above is segmental arch relieving arch pointed arch flat arch segmental arch relieving arch pointed arch flat arch ANSWER DOWNLOAD EXAMIANS APP
Building Materials Pick up the correct statement from the following: Method of sawing timber All of these Cut out of quarter logs, parallel to the medullary rays and perpendicular to annual rings, is known as radial sawing Tangentially to annual rings, is known as tangential method In four quarters such that each board cuts annual rings at angles not less than 45°, is known as quarter sawing method All of these Cut out of quarter logs, parallel to the medullary rays and perpendicular to annual rings, is known as radial sawing Tangentially to annual rings, is known as tangential method In four quarters such that each board cuts annual rings at angles not less than 45°, is known as quarter sawing method ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS