What is the box fill volume allowance for conductors that do not leave the box? O depends on number of conductors depends on wire gauge O 1

temperature rating that a conductor must have and still have 69 Ambient Tempere 4. The ampacity of 15 current-carrying 10 RHW aluminum conduc- tors in a raceway in an ambient temperature of 75'F is 1. gon factor for conductor ampacity in this location is (a) 12A (b) 15A (c) 22A (d) 30A 0.71 b0.82 0.88 0.96 5. Ain) uous load if the ambient temperature is 75°F and there are nine THHN conductor is required for a 19.70A noncontin- ne ambient temperature is 71"C, the minimum insulation current-carrying conductors in the raceway in a dry location. he capacity to carry current is (a) 14 (b) 12 (c) 10 A 60°C AI 90°C 105°C (d) 8 0 120°C 6. 6.11 Ampacity Adjustment [310.15(B)(3)(a)] The ampacity for each of nine current-carrying 10 THW conduc- tors installed in a 20 in. long raceway is 1 The ampacity of six current-carrying 4/0 XHHW aluminum con- ductors installed in a ground floor slab (wet location) is (a) 25A (b) 30A (c) 35A (d) 40A a) 135A 0) 144A (e) 185A 4 210A

None

Cylindrical metallic parabolic trough solar thermal collectors. 1. Does not rotate. 2. It rotates around one axis only. 3. It rotates around two axes only. 4. They can produce a temperature of20-100 °C. 5. They can produce a temperature of200-400 °C. 6. They can produce a temperature of2000-4000 °C. O 1 + 4 only. O 2 + 5 only. 2 + 6 only O 3 + 5 only.