Questions and Answers 100% Pass
What are the three components that make up a project? - ✔✔1. Time
2. Money
3. Scope
What are the four principles to adhere to when designing base camps? - ✔✔1.
Scalability
2. Sustainability
3. Standardization
4. Survivability
What components are part of the superstructure of a nonstandard fixed bridge? -
✔✔Everything above the supports (bearing plates and up):
Deck, railings, stringers
What components are part of the substructure of a nonstandard fixed bridge? -
✔✔structural elements of the bridge below the bearing plates:
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, Pier - supports the middle of the span
Wingwall - retaining wall that directs water away from the abutment
Abutment - what the span's ends rest on
What are the two levels of quality control? - ✔✔1. Unit QC (macro)
2. Project QC (micro)
Who is the only person who can alter a contract? - ✔✔Contracting officer (the KO)
How many days does standard concrete (Type 1A) take to cure? - ✔✔28 Days
What is the chemical reaction between water and Portland cement called? -
✔✔Hydration
What are the components of concrete? - ✔✔Water, Portland Cement, Air, Aggregate
(coarse and fine), Ad mixtures
Describe the relationship between the Water / Cement ratio and concrete properties
(strength, durability, water tightness, workability) - ✔✔When W/C is high -- strength,
durability, and water tightness decrease while workability increases
What is the conversion factor of Horsepower to watts? - ✔✔1HP = 746 watts
What is the power law? - ✔✔P = I x E
P (power in watts) = I (current in amps) x E (voltage in volts)
What is Ohms law? - ✔✔R = E / I
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