43. Knife switches rated more thanand at over 1000 amperes at 251 to 1000 volts,

Question

43. Knife switches rated more thanand at over 1000 amperes at 251 to 1000 volts, isolating switches and shall not be opened under load a. 1000 amperes at 250 volts or less b. 1100 amperes at 200 volts or less c. 1200 amperes at 250 volts or less d. 1200 amperes at 200 volts or less 44. Essential electrical systems for hospitals shall be comprised of capable of supplying a limited amount of l operation during the lighting and power service that is considered essential for life safety and effective time the normal electrical service is interrupted for any reasorn. a. two separate branches, which are both b. three separate branches, which are all c. one complete branch and an emergency auxiliary branch d. four separate branches (two for lights and two for power service) hospital 45. The flexible cord shall include a storage device that does not subject the cord to less radius. a. 2-in b. 3-in c. 4-in d. 5-in 46. To calculate the ampacity of conductors supplying several motors (feeder conductors), multiply the largest motor full-load current( FLC) rating by group. a. 90 b. 100 c. 115 d. 125 % and add the FLC ratings of all other motors (or loads) in the 47. Wet procedure locations are the areas in a patient care space where a procedure is performed that is normally subject to wet conditions while patients are present, including standing fluids on the floor or drenching of the work area, where either such condition a. is intimate to the patient or staff b. could impinge on electrical equipment c. carries the potential for arcing d. also compromises wiring 48. A 60-ampere rated conductor is the minimum size allowed if the overcurrent protection on the tap conductor's line side is a. 300 amperes c. 600 amperes b. 500 amperes d. 800 amperes requirements shall 49. If a crane, hoist, or monorail hoist operates above readily combustible material, specific b. resistors a. capacitors c. overload protection d. receptacle placement 50. Each patient bed location shall have a minimum ofreceptacles. a. six c, ten b. eight d. fourteen

Explanation / Answer

These all are the questions based on some regulations that is followed. So, I would be answering it without much explanation on the same.

43) C. 1200 amperes at 250 volt or less

44) A. two separate branches, which are both

45) B. 3-in

46) D. 125%

Conductors that supply several motors must have an ampacity that is not less than: 125% of the highest-rated motor FLC.

47) A. Is intimate to patient or staff.

As defined by NFPA 99 as an "area in a patient care room where a procedure is performed that is normally subject to wet conditions while patients are present, including standing fluids on the floor or drenching of the work area, either of which condition is intimate to the patient or staff.

48) A. 300 Amps

Tap conductors under Overcurrent protection shall be thrice the ampacity of the the feeder conductor used for overcurrent protection device. Thus, 60x3=180 Amps. Next available size that we have is 300 amps.

49) B. Resistors

The resistors must be located in a well-ventilated cabinet constructed of noncombustible material and constructed so that they will not emit flames or molten metal.

50) A. Six

These may be any combination of single, duplex or. 4-PLEX style devices.

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