2. Before submitting his proposal, each bidder shall examine all drawings relating to this work and shall become fully informed as to the extent and character of the work required and its relation to other works in this building. No consideration will be granted for any alleged misunderstanding of the materials to be furnished or work to be done, it being understood that the tender of a proposal carries with it the agreement to all items and conditions referred to herein and in the General Conditions or indicated on the accompanying drawings.