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 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 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 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 threephase, 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 The two AC input terminals to the rectifying bridge are I1 and I2