In general, the strength of extracted cores is lower than the strength of standard cylinders tested at an identical age.

Vertical shoring under a beam or slab can be accomplished either with permanent shoring or shoring that is then replaced with _________

Show all work.   Work must be scanned and uploaded after completing Part 1 of the exam Please indicate which page number you solved the above problem on in your scratch paper (e.g. Page 1)

Compressive strength cylinders should be made and stored at a location where they will be protected. They are more fragile than eggs and will “test” lower than they should if disturbed. They should not be touched, jolted, or moved for at least the first _______hours.

The most common size of a compressive strength cylinder is

A basic law of finishing concrete is 

A Swiss hammer has an accuracy of between _________ and _______ percent, depending on how well it is calibrated.

A snap tie is made of a single piece of wire cut to length and headed at each end.  

Concrete is properly vibrated when ________________ .

___________ should be placed in the corners of forms to produce beveled edges on permanently exposed concrete surfaces (see the column in MDL 211)