____________ is unwanted and uncontrolled air that enters a building.
Fill in the blank(s) with the appropriate word(s).
Infiltration
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When a plane surface is tangent to a contoured surface, a line is drawn to show the point of intersection
Indicate whether the statement is true or false
The two basic methods of installing couplings are clearance installation and ________ installation
A) axial B) rigid C) interference D) torsional
When there is the potential to be exposed to asbestos, workers must _____
A) don a respirator before disturbing the asbestos B) remove the asbestos as quickly as possible C) report it to a supervisor and avoid disturbing it D) call the emergency number to summon first responders
Answer the following statement(s) true (T) or false (F)
1. An impedance (distance) relay on a particular line may also act as a backup for a relay on another line. True or false?
2. A balanced three phase fault is the most common type of transmission line fault. True or false?
3. A wind turbine with just an induction generator (a Type 1 design) is usually modeled in the power flow as a PV bus. True or false?
4. For the general minimization problem minx f(x) s. t. g(x)=0 , we define the Lagrangian as
, then 
is just a restatement of .g(x) = 0.