NACE CP2 EXAM (ACTUAL ) QUESTIONS WITH 100% CORRECT ANSWERS | GRADED A+ | GUARANTEED PASS.

NACE CP2 EXAM (ACTUAL ) QUESTIONS WITH 100% CORRECT ANSWERS | GRADED A+ | GUARANTEED PASS. The amount of energy required by a metal during the refining process determines the ___ or _______ of the metal. A) current, active state B) voltage, active state C) active resistance, voltage D) resistance, active state E) current, active resistance - ANSWERS_b Single phase rectifier that has has 1 diodes A) single-phase B) full-wave C) center-tapped - ANSWERS_a When taking soil resistivity measurements along a structure,it is good practice to place the line of pins _____ to the structure, with the nearest pin no closer than ___ ft from the structure A) parallel, 20 ft B) parallel, 10ft C) perpendicular, 20ft D) perpendicular, 15ft - ANSWERS_d Layer Resistivity 1) S 2 layer = 318.2 cm - 159.1 cm =159.1 cm 2) R 2 layer = (R 1 R 2 ) / (R1 - R2 ) = 28.46ohms 3) 2 π x 159.1cm x 28.46 Ω = 28,450ohms-cm - ANSWERS_ True or False (t or f) One advantage of the single rod method for measuring resistivity of soil is that it can be employed in confined spaces such as next to tanks and between pipes - ANSWERS_t What is the formula for resistivity A) p= (L*A)/(R) B) p = (R*A)/(L) C) p = (X*A)/(R) - ANSWERS_b Which rectifier is the standard most often used A) single-phase B) full-wave C) center-tapped - ANSWERS_b Three phase rectifier that has 3 diodes A) single-phase B) wye C) center-tapped D) full-wave - ANSWERS_b The soil box measures a ____ or resistivity of a relatively small soil sample A) maximum B) minimum - ANSWERS_b Three phase rectifier that has 6 diodes A) single-phase B) full-wave C) center-tapped D) wye - ANSWERS_b Electrical continuity of concrete rebar structures can be evaluated using ______ a resistance of less than ____ indicates continuity A) DC-resistance measurements, 0.100 ohms B) AC-resistance measurements, 0.100ohms - ANSWERS_b Single phase rectifier that has 2 diodes A) single-phase B) full-wave C) center-tapped - ANSWERS_c True or False (t or f) In regards to rectifiers: single-phase units are more efficient than three-phase units - ANSWERS_f The theoretical maximum efficiency for a three- phase, full-wave bridge rectifier is ___% compared to ___% for a single-phase, full-wave bridge rectifier A) 99.5, 85 B) 81, 96.5 C) 96.5, 81 D) 85, 99.5 - ANSWERS_c Diodes are electrical devices that allow current to pass in one direction but block current in the opposite direction - ANSWERS_t Which of the diodes in a rectifier is more sensitive to current surges and can be quickly destroyed by any current overload A) silicon B) selenium - ANSWERS_a During the refining stage of metal the ____ the energy, the more ____ the metal and the more tendency it has to corrode. A) higher, inactive B) lower, active C) higher, active D) lower, inactive - ANSWERS_c Modern rectifiers employ either ____ or ____ diodes to provide the rectifying action A) silicon, galanium B) magnesium, cronium C) tituanium, selenium D) selenium, silicon - ANSWERS_d True or False (t or f) What is the most common iron ore? A) hemophite B) hematite C) magnesium D) calcium E) aluminum - ANSWERS_b True or false Iron is considered thermodynamically unstable? - True or false Gold is more noble than zinc? - ANSWERS_t Which of the following metals is most active? A) magnesium B) copper C) iron D) nickel E) platinum - ANSWERS_a Electromotive force (emf), is ____ in sign and magnitude to the electrode potential of the ___ less the electrode potential of the ____. A) unequal, cathode, anode B) unequal, anode, cathode C) equal, cathode, anode D) equal, anode, cathode - ANSWERS_d The two AC input terminals to the rectifying bridge are I1 and I2 The two DC output terminals are O1 and O2 - ANSWERS_ True or False (t or f) The positive potentials always transfer to output terminal O1, and the negative potentials transfer to output terminal O2. - ANSWERS_t In regards to rectifiers: Plates are arranged in "stacks," with the ___ and ____ of plates being determined by the ___ and ____ output capacity of the rectifier. A) weight, size, voltage, current B) number, size, voltage, current C) number, spacing, resistance, conductivity D) spacing, weight, resistance, current - ANSWERS_b In relation to a corrosion cell, ____ is the net transfer of electric charge per unit time A) current B) voltage C) resistance D) ohms E) siemens-cm - ANSWERS_a Thank you for Purchasing this exam Study Guide. We provide highquality academic materials to help students excel in exams. Our other Services include but not limited to: academic research, University & College assignments writing, essay writing, Online Classes, and research projects. Our services are reliable, affordable, and plagiarism-free. All the Best in your Exam. For more information; Contact us at: or 0R