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Electronics Mechanic Practice Test: Protective Devices And ESD
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Electrostatic discharge (ESD) protection devices and countermeasure components allow ESD to enter devices and escape to the ground. They are essential for protecting electronic components and ensuring workplace safety.

Electronics Mechanic Practice Test: Protective Devices And ESD
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25 Questions

1. Which device is used in electrical installations to protect from electric shock?
2. What is the typical temperature range of cooling zone in flow soldering process?
3. Which type of relay is used in voltage stabilizer?
4. What is the purpose of providing solder mask on the PCBs?
5. Which relay functions whenever the current in the coil reaches on upper limit
6. What is the current rating of rewireable fuse used for domestic wiring?
7. What is the current rating of cartridge fuse used for domestic wiring?
8. What is the effect on the solder paste, when the ramp-up rate exceeds the maximum slope in reflow soldering process?
9. What is the current rating of tinned copper wire 40 SWG used for rewireable fuse?
10. A 100mA current sensing relay is used in electronics equipment. What will happen if the circuit current is only 50mA?
11. What is the fusing factor of rewire able HRC fuse?
12. Which parameter opens the fuse element under fault, without damaging the load?
13. :How much time is taken by overload relay to open motor contact at 500 percentage of full load current?
14. What is the trip for clearing short circuits in MCB combination circuit breaker?
15. What is the breaking capacitor of a DC series MCB?
16. Which series MCB is used for protection of motor?
17. What is the use of Bench top Ionisers?
18. Which conformal coating material is used as two part thermosetting mixture?
19. What is the current rating of cartridge fuse with brown colour code?
20. Which method of conformal coating is used for epoxy coated on PCBs?
21. A contractor consists of 4 NO and 3 NC contact pairs. How many circuits can be switched off by this contactor?
22. What is the range of temperature setting on soldering work station for soldering SMD ICs?
23. What is the current rating of copper colour fuse cartridge?
24. Which is alternative to ceramic SMD IC packages?
25. What is the power rating of soldering iron used in electrical and electronic work?

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