A construction manager is looking for workers to build a series of walkways within a large garden apartment. What type of workmen should the manager employ?

The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite

Manometers are good examples of measuring instruments, nowadays they are not as common as before. a)-capacitive probe gauges b)-gravitational gauges deformation ) gauges d)-digital gauges

Modern high speed trains do not have perpendicular expansion gaps where rails are joined end-to-end any more they are mostly welded together but what might happen if there was a spell of particularly hot weather that causes inspection of the tracks?