Which of the following terms describes the maximum stress a material can withstand without permanent deformation and damage?
A. yield strength
B. resist bend moment (RBM)
C. tensile strength
D. applied moment
Answer: A
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Answer the following statement(s) true (T) or false (F)
1. The principle of electro-magnetism states that when an electrical current flows through an electrical conductor, a magnetic field will be created around that conductor. 2. The strength of the magnetic field created by an electromagnet is determined by the magnetic polarity. 3. The magnetic polarity of an electromagnetic field is determined by the direction of current flow through the coil. 4. The greater the magnetic flux density, the lower the induced voltage will be. 5. Lenz’s Law states that an induced voltage will be the opposite polarity as the electrical source voltage that created it.
Stewardship implies that you are only responsible for the money that is left in your control
Indicate whether the statement is true or false
A megohmmeter can detect:
A) Moisture. B) Insulation faults. C) Contamination. D) All of these.
Several common materials are used to protect the roof. Among the most frequently used are asphalt shingles, wood shakes and shingles, clay and concrete tiles, metal sheets, and built-up roofing materials.
Answer the following statement true (T) or false (F)