Question

49-54

9. An Estop contact is to be wired into a PLC ELECTRONICS POWER SUPPUES system. Which of the following met provide the greatest safety and also allow al input cards to bre status indicators on observed if an Estop condition occurred? AND EST INSTRUMENTS A Wire the contact such that it interupts power only to the input cards and devices.,凶ⓑ B. Wire the contact as an input device and use it in the proram to interrupt the logic to all output bits C. Wire the contact such that it interrupts 0 ⓒLe,ID power only to the output cards and devices ..&E] roi [C] A D. Wire the contact such that it interrupts power to the the PLC power supply unit S0. Category 5 cabling for use with networks is terminated with A. RI50 connectors. B. RJ45 connectors.. C. RJ12 connectors. D. RJII connector 51. An "infinite" (10 megohms or greater) reading on a solenoid coll shows A. a good solenoid.... B. C. an open solenoid. D. a short-circuited solenold... 52. If the insulation resistance reading using a megohmmeter shows a sudden drop, it indicates that A. tests are being made at wrong points. B. incorrect voltage is being used for testing,... C. routine inspections are needed...C A D. trouble is developing The effective value of AC voltage and BASIC AC & DC THEORY POWER DISTRIBUTION AND 53. current is also known as the A. RMS value... B. IMS value.. ELECTRICAL C.equivalent valu... D. average value. ID 54. Total opposition to current flow in an AC circuit is expressed as the A. resistance AD 으因囚回 C. reactance D. impedance.. GO ON TO THE NEXT PAGE

Answer 1

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