A building's structural steel is __________________
A. coated with copper to prevent rusting and eventual collapse
B. sprayed with insulation so that it resists failure due to deformation caused by the heat of a fire
C. painted with a corrosion and fire resistant paint
D. is riveted together because welded joints fail under fire conditions
B
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____ consists of heating steels to slightly above a specific temperature and holding for austenite to form, then followed by cooling (in still air).
A. Normalizing B. Preheating C. Annealing D. Stress relieving
Using a sketch, explain the difference between a roof truss and a floor truss. In which situations will you consider the use of wood floor trusses?
What will be an ideal response?
To prevent sparks that could ignite fuel, _____
a. always wear rubber-soled shoes b. wipe the fuel nozzle with an antistatic cloth c. ground the fuel nozzle or funnel d. use a low fuel-flow rate
The cost of an air drill is $75.00. The cost for a comparable size electric drill is $47.00. The extension cord and the GFCI needed are $14.97 and $23.75, respectively. What is the more economical purchase and what is the difference in cost?
What will be an ideal response?