NCCER Practice Exam with complete Answers
In a guardrail system, the guardrails can be made of any of the following EXCEPT: a) pipe b) chain c) ropebanding d) cable - Answer Ropebanding If the potential across the circuit is 48 volts and the current is 5 amps the resistance of the circuit is: a) 4.8 ohms b) 9.6 ohms c) 48.0 ohms d) 96.0 ohms - Answer 9..6 ohms A UL listed rod type grounding electrode must have a MINIMUM length of: a) 6' b) 8' c) 10' d) 20' - Answer 8' What is the MINIMUM number of overload sensing units required for all three phase motors? a) 0 b) 1 c) 2 d) 3 - Answer 3 In a circuit of pure capacitance, the current leads the voltage by an angle of: a) 30-degreesb) 45-degrees c) 90-degrees d) 180-degrees - Answer 90-degrees The standard unit for measuring the cross-sectional area of wire is the: a) circular mil b) square mil c) round mil d) radial mil - Answer Circular mil The drawing scale is MOST likely to be found in which of the following drawing locations? a) The lighting fixture schedule b) The symbol list c) The drawing title block d) The power riser diagram - Answer The drawing title block
Información del documento
- Subido en
- 3 de enero de 2024
- Número de páginas
- 4
- Escrito en
- 2023/2024
- Tipo
- Examen
- Contiene
- Preguntas y respuestas
