Topic Assessment 3 Hazards and Risks in an Electrical Installation (60 min)_ Attempt review.pdf

26/08/2024, 22:57 Topic Assessment 3 Hazards and Risks in an Electrical Installation (60 min): Attempt review Dashboard / My courses / EL03 - Arrange circuits, control and protection for electrical installations / Topic Assessments / Topic Assessment 3 Hazar...

26/08/2024, 22:57 Topic Assessment 3 Hazards and Risks in an Electrical Installation (60 min): Attempt review Dashboard / My courses / EL03 - Arrange circuits, control and protection for electrical installations / Topic Assessments / Topic Assessment 3 Hazards and Risks in an Electrical Installation (60 min) Started on Sunday, 11 August 2024, 5:25 PM State Finished Completed on Sunday, 11 August 2024, 5:26 PM Time taken 1 min 54 secs Marks 9.00/9.00 Grade 100.00 out of 100.00 Feedback Congratulations you have achieved 100%. Good luck with your continued studies. https://learn.sydneytafe.edu.au/mod/quiz/review.php?attempt=1587933&cmid=1452017 1/5 26/08/2024, 22:57 Topic Assessment 3 Hazards and Risks in an Electrical Installation (60 min): Attempt review Question 1 Correct Mark 1.00 out of 1.00 Topic Assessment 3 Hazards and Risks in an Electrical Installation Question 1 From the following graph a person receiving a 30 mA current hand to hand for 200ms will result in a zone: Select one: a. AC3 shock with reversible damage, no fibrillation and breathing difficulties b. AC2 shock usually with no effects c. AC4 shock with a 5 to 50% chance of fibrillation d. AC1 shock with no danger Your answer is correct. https://learn.sydneytafe.edu.au/mod/quiz/review.php?attempt=1587933&cmid=1452017 2/5 26/08/2024, 22:57 Topic Assessment 3 Hazards and Risks in an Electrical Installation (60 min): Attempt review Question 2 Correct Mark 1.00 out of 1.00 Topic Assessment 3 Hazards and Risks in an Electrical Installation Question 2 Why are the transition levels from ELV to LV lower for ac than dc? Select one: a. In general dc, which has zero frequency, is more dangerous than ac of the same voltage and current b. The effects of ac on the human body are independent of frequency c. An ac shock is 3 - 5 times more dangerous to the human heart than a dc shock of the same voltage and current d. A dc shock is 3 - 5 times more dangerous to the human heart than an ac shock of the same voltage and current Your answer is correct. Question 3 Correct Mark 1.00 out of 1.00 Topic Assessment 3 Hazards and Risks in an Electrical Installation Question 3 Electrical installations shall be arranged so that there is no risk of ignition of flammable materials due to: Select one: a. Touch current b. High temperature c. Electric arc d. Touch voltage Your answer is correct. https://learn.sydneytafe.edu.au/mod/quiz/review.php?attempt=1587933&cmid=1452017 3/5 26/08/2024, 22:57 Topic Assessment 3 Hazards and Risks in an Electrical Installation (60 min): Attempt review Question 4 Correct Mark 1.00 out of 1.00 Topic Assessment 3 Hazards and Risks in an Electrical Installation Question 4 To protect against injury from mechanical movement every motor shall be provided with a switching device capable of performing the following functions: (Select THREE) Select one or more: a. Starting and stopping the motor b. Reversing the motor c. Isolating the motor for mechanical maintenance d. Emergency stopping e. Manually switching full load motor current Your answer is correct. Question 5 Correct Mark 1.00 out of 1.00 Topic Assessment 3 Hazards and Risks in an Electrical Installation Question 5 Which section of AS3000 provides acceptable methods for protecting against hazards and risks in an electrical installation? Select one: a. Section 1 b. Section 2 c. Section 4 d. Section 5 Your answer is correct. https://learn.sydneytafe.edu.au/mod/quiz/review.php?attempt=1587933&cmid=1452017 4/5 26/08/2024, 22:57 Topic Assessment 3 Hazards and Risks in an Electrical Installation (60 min): Attempt review Question 6 Correct Mark 4.00 out of 4.00 Topic Assessment 3 Hazards and Risks in an Electrical Installation Question 6 According to AS 3000 Clause 6.2.4.4 and the figure below, to reduce the risk of electric shock a luminaire in Zone 0 of a swimming pool must be: (Select FOUR) Select one or more: a. Supplied by a SELV or PELV source located outside zone 0 b. IP rated to at least X4 c. Provided with the correct degree of protection d. Supplied at a nominal voltage not exceeding 12 V ac or 30 V ripple free dc. e. Designed specifically for use f. Earthed Your answer is correct. ◀︎Topic Assessment 2 Circuit and Control Arrangements (60 min) Jump to... Topic Assessment 4 Protection Against Indirect Contact (60 min) ▶︎ https://learn.sydneytafe.edu.au/mod/quiz/review.php?attempt=1587933&cmid=1452017 5/5