430 PRACTICE EXAM 2024.

430 PRACTICE EXAM 2024.Radial - ANSWER Which of the following describes the brushes when they are aligned to the commutator surface at a right angle? Commutator film - ANSWER Copper oxide, water vapor, graphite film and free carbon particles are components that make up what? Chocolate - ANSWER What color is a commutator with good commutation? One sixteenth inch - ANSWER What should be the maximum depth when undercutting mica on a medium size commutator? A normal condition - ANSWER What does a small amount of arcing at the commutator indicate? Threading - ANSWER A light electrical load on a commutator causes which of the following conditions? Turning the commutator with a lathe tool - ANSWER How can an eccentric commutator be corrected? Megger - ANSWER To detect a high resistance ground, what instrument should be used?