1. The minimum IP rating for Ex e equipment is?
- IP54
2. Which of the following descriptions represents equipment marked Ex e?
- inreased safety
3. Which of the following locations can Ex n equipment be insalled?
- EPL Gc( Cat 3G)
4. Four variations of Ex n equipment are available, which are?
- Na, nc, nL and nR
5. Installed in 2009, an Ex d motor has an Ex e terminal box. Which of the following gland options may be used in SWA cable?
- Ex d or Ex e
6. A steel Ex e enclosure has a threaded entry 10 mm in length. Which of the following options achieves the minimum installation requirement when fitting an Ex E1W cable gland?
- fit gland
7. For Ex e equipment installed in 2005, which of the following glands is not acceptable?
- uncertified plastic
8. The tE time of an Ex e motor indicats?
- the disconnection time limit when stalled after starting from hot
9. The requirement for cable glands entering Ex n equipment after 2007 are?
- certified as meeting the requirements of EIC60079-0
10. As Ex de motor, with an Ex e terminal box, was installed in 2005. Which of the following cable glands achieves the minimum installation requirements?
- An uncertified gland which meets the IP and impact requirements
11. An Ex e enclosure has clearance entries. What is the minimum requirement for installing an SWA cable?
- fit gland, external IP washer internal serrated washer and lock nut
12.