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All the question's and answer's in this quiz are found in Tom Henry's book, "The Pictorial Workbook of the Code Volume Three".
1. Electrical ducts shall include any of the electrical conduits recognized in Chapter 3 as suitable for use .
- [ ] underground
- [ ] exposed
- [ ] over 600v
- [ ] as bus bars
2. The number of #12 conductors permitted in a 3" X 2" X 1 1/2" deep device box is .
3. Which of the following statements about MI cable is correct?
- [ ] it may be used in any hazardous location
- [ ] it shall be supported every 10 feet
- [ ] it may be mounted flush on a wall in a wet location
- [ ] a single run of cable shall not contain more than four quarter bends
4. Factory assembled PVC underground conduit with conductors is not permitted .
- [ ] in underground locations subject to severe corrosive influences
- [ ] encased or embedded in concrete
- [ ] in exposed indoor locations
- [ ] in cinder fill
5. Which of the following requires a moisture seal at all points of termination?
- [ ] bare conductor feeders
- [ ] underplaster extensions
- [ ] liquidtight flexible metal conduit
- [ ] mineral-insulated cable
6. The temperature rating of a conductor is the maximum temperature, at any location along its length, that the conductor can withstand over a prolonged time period without .
- [ ] a ground fault
- [ ] serious degradation
- [ ] tripping the breaker
- [ ] short circuiting
7. Which of the following is true concerning type NM cable?
- [ ] it may be covered with plaster, adobe, or similar finish
- [ ] it may be fished in air voids in masonry block or tile walls
- [ ] it may be installed where exposed to corrosive fumes
- [ ] it may be embedded in masonry, concrete, or plaster
8. 100 feet of rigid PVC conduit is run between two cabinets. If its thermal expansion is less than inches, an expansion joint is not required.
- [ ] .30
- [ ] .25
- [ ] .28
- [ ] .35
9. The largest conductor permitted in 3/8" flexible conduit is .
- [ ] #12
- [ ] #10
- [ ] #14
- [ ] #16
10. The ampacity of a #250 kcmil IGS cable is amperes.
- [ ] 255
- [ ] 119
- [ ] 168
- [ ] 215
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