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Questions in engineering

[Done] Describe the solid, resistant, and three-phase earthing systems.

[Done] Which of the following is not a recommended guideline for the safe use of insulating blankets? A. Blankets must be tested yearly. B. Blankets should only be used to cover equipment. C. Blankets should be placed on the floor to provide grounding. D. Blankets must be cleaned, inspected, and stored properly.

[Done] Select the best answer for the question. 8. The mixing valve controls the temperature of water supplied to the A. supply pump. B. cooler. C. boiler. D. radiant loop.

[Done] Pushing on a wrench helps to avoid sudden loosening that may cause hand injury. A. True B. False

[Done] Which is not one of the three broad categories of the Electrical field? A. Residential B. Industrial C. Service D. Commercial

[Done] Which of the following organizations are identified as sponsors in developing the NEC and NFPA 70E? Select all that apply, then select Submit. A. International Brotherhood of Electrical Workers (IBEW) B. International Electrotechnical Commission (IEC) C. National Electrical Manufacturers Association (NEMA) D. National Fire Protection Association (NFPA)

[Done] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Done] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Done] Which is not one of the three broad categories of the Electrical field? A. Residential B. Industrial C. Service D. Commercial

[Done] Cathodic protection records must be kept for: A. 6 months B. 1 year C. 7 years D. The life of the pipeline