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Red Seal Questions And Answers With Verified Solutions Already Passed!!!
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Red Seal Questions And Answers WithVerified Solutions Already Passed!!!
1. What is the purpose of the occupational health and safety act (OHSA)? -
ANSWER✔✔B. Protect workers from health and safety hazards on the job
2. The identified conductor of a single phase ac circuit is what colour? -
ANSWER✔✔D. White or grey (2021 CEC 4-032 & 4-024)
3. Which binary number below represents decimal number 20? - ANSWER✔✔D.
010100
4. Heat transferred by a mass motion of air is known as? - ANSWER✔✔D.
Convection
5. What device is the symbol below? - ANSWER✔✔D. Zener diode
6. What method gives a good indication of the overall condition of an oil filled
power transformer? - ANSWER✔✔C. Routine oil sampling analysis
7. Batteries used as an emergency power supply must supply the load for the time
indicated in the national building code but in no case less than 30 min. -
ANSWER✔✔True CEC 46-202 (1) (a)
8. What is an example of a discrete input device? - ANSWER✔✔B. Limit switch
correct
9. What are a major cause of hot spots and discolouration of electrical equipment?
- ANSWER✔✔C. Loose connections correct
10. What is the maximum penalty that can be issued per offence to an individual
found contravening OHSA or it's regulations? - ANSWER✔✔C. Fine up to
$25,000 and/or up to 12 months of imprisonment correct
11. What is one method of identify hot spots on high voltage equipment? -
ANSWER✔✔C. Thermal imaging camera correct
, 12. A germanium diode is forward biased what is the voltage drop across it? -
ANSWER✔✔D. 0.3v correct
13. What is the value and tolerance of the resistor below? - ANSWER✔✔C. 250Ω,
10% correct
14. When installing unit equipment (unit equipment for emergency lighting) its
bottom edge should be no less than? - ANSWER✔✔D. 2m from the bottom of the
floor (CEC 46-302)
15. You have a 3 Φ delta transformer feeding a load but one phase of the delta tx
becomes open what is the transformer configuration now called and what % of the
original configuration can the transformer operate at? - ANSWER✔✔. Open Delta,
57.5% correct
16. What rule in the Canadian Electrical code book would refer to for exit signs? -
ANSWER✔✔A. 46-400correct
17. In a half wave rectifier which statement is true? - ANSWER✔✔D. Each
positive half cycle is passed through to the output correct
18. What is the following WHMIS symbol? - ANSWER✔✔A. Compressed gas
correct
19. 3 phase power provides 3 alternating currents that are _______° out of phase
with each other? - ANSWER✔✔B. 120° correct
20. You have installed a 600v, 3 phase, 50 HP induction motor with a service
factor of 1.15, what value will you set the overloads at? - ANSWER✔✔A. 65A
(O/L setting for 1.15 SF is FLA x 1.25, to find FLA go to CEC Table 44.)
21. An opto-coupler/opto-isolator uses small copper wires to transfer signals. -
ANSWER✔✔B. False correct (Uses light to transfer signals.)
22. The clogged filter indication on an hydraulic system is not working properly,
what is likely the cause? - ANSWER✔✔C. Differential pressure switch correct
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