NCARB PDD QUIZ WITH VERIFIED
ANSWERS [GRADED A+]
Performance Spec - tells contractor what the final installed product
must be capable of doing (ex. the roof shall last 50 years or conc. must
meet or exceed 3000 psi compressive strength at 28 days)
Prescriptive (Descriptive) Spec - explain...
Performance Spec - ✔✔tells contractor what the final installed product
must be capable of doing (ex. the roof shall last 50 years or conc. must
meet or exceed 3000 psi compressive strength at 28 days)
Prescriptive (Descriptive) Spec - ✔✔explains materials that must be
used and the means of installing them
Proprietary Spec - ✔✔names a manufacturer's standard product by its
brand name or model number (product selection is closely controlled
and this limits competition)
Closed Spec vs Open Spec - ✔✔Closed - when substitutions are not
permitted. Open - when approved equals are permitted
, Reference Spec - ✔✔rely on naming a published, industry-recognized
standard (UL rating is a common example of ref. spec for a fire rated
wall assembly)
Building Creep - ✔✔when a solid material moves slowly or deforms
under persistent stresses
Slump Test - ✔✔A test for mixed concrete to determine consistency
and workability.
Test Cylinder - ✔✔tests overall strength in a batch of concrete; tested
in a lab
Core Cylinder Test - ✔✔used when a portion of the structure is in place
and cured but needs testing
Mechanical Reheat System - ✔✔similar to an in wall unit, this system
will condition air and put it back into a room, a reheat system will also
filter and use outside air
Voltage - ✔✔one way of measuring the effect of electrons moving
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