MILLWRIGHT NCCER EXAM QUESTIONS AND ANSWERS

One type of common gearbox is the _________. A) right -angle drive B) bevel box C) fluid drive D) triangle drive - Answer-A) Right-angle drive Double helical gears are especially effective in applications where __________ are problems. A) shock and vibration B) different helical angles C) misalignments D) multiple gear sets - Answer-A) Shock and vibration Destructive pitting occurs on a gear on one side or the other of the _______. A) root B) whole depth C) tip D) pitch line - Answer-D) Pitch Line Pressure is normally measured in ___________. A) pounds of force B) foot-pounds C) inch-pounds D) pounds per square inch - Answer-D) Pounds per square inch The distance from the tip of a gear tooth on one side of a gear to the tip of a tooth on the opposite side of the gear is called the ____________. A) whole depth B) major diameter C) pitch diameter D) major circumference - Answer-B) Major Diameter The Pistons in a two-piston cylinder _____________. A) always move together B) are called dual pistons C) can move together or separately D) do not move when the pressure is too high - Answer-C) Can move together or separately Engaged gears always have the same _____________. A) number of teeth