Question 508Steam Plants - Assistant Engineer70% to pass
The reduction gear shown in the illustration is a/an _______________. Illustration SE-0013

AI Explanation
The correct answer is D) articulated double reduction gear.
This is correct because the illustration SE-0013 shows a reduction gear with two stages of reduction, where the gear shafts are arranged in an articulated or "broken" configuration rather than being in a straight line. This type of arrangement is known as an articulated double reduction gear.
The other options are incorrect because they do not accurately describe the configuration shown in the illustration. A locked-train gear, nested four-step gear, and nested double reduction gear all have different arrangements of the reduction gearing that do not match the illustration.
Related Questions
#506 Which of the following statements defines the term 'axial float' in reference to reduction gears? #507 The purpose of the main reduction gears is to _______________.#509 After the housing has been bolted down, the final check of reduction gear tooth contact is usually made by _______________.#510 Which of the following types of bearings are used for the reduction gears in a marine steam turbine installation? #511 The component shown in the illustration, labeled "I", is the _______________. SE-0013