1) As a plumber, when do you need to restrict water flow to one direction, you would choose a a) check valve b) ball valve c) stop and waste valve d) gate valve 2) What are the 2 processes by which mortar loses moisture a) evaporation and hydration b) evaporation and dehydration c) hydration and condesation d) condensation and evaporation 3) Which is NOT a type of construction insulatioin a) fiberglass b) ridged foam board c) spray foam d) thermoplastic 4) In order to properly insulate a building, you must clearly define the a) thermal envelope b) thermal area c) attic space d) outdoor temperature 5) Power saws that are used to cut masonry units use a _________blade a) diamond tip b) abrasive c) carbide tip d) soft metal 6) In order to keep the blade cool and to control dust generated from cutting masonry units, masonry saws need to be a) irrigated b) used once every 30 min c) used outside d) used in front of a fan 7) The sill plate in anchored to the foundation by a) glue b) screws c) anchor bolts d) nails 8) Mortar joints are ready to be struck/pointed when a) 1 hour after the unit has been laid b) 2 hours after the unit has been laid c) immediately after the unit has been laid d) when the mortar is "thumbprint" hard 9) The color of the NEUTRAL wire on a residential electrical ciruit is a) green or bare copper b) black c) white d) yellow 10) The number of wires that can be safely put into an electrical box is determinded by a) the perimeter of the box b) the diameter of the box c) the volume of the box d) the area of the box 11) On a receptacle the HOT wire is attached to the _________screw a) silver b) brass c) green d) none of the above

construction 4

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