Identify the gear train shown in the given figure.

This question was previously asked in
NHPC JE Mechanical 6 April 2022 (Shift 2) Official Paper
View all NHPC JE Papers >
  1. Planetary gear
  2. Spur gear
  3. Reverted gear train
  4. Compound gear

Answer (Detailed Solution Below)

Option 3 : Reverted gear train
Free
NHPC & THDC JE Civil Full Test 1
200 Qs. 200 Marks 180 Mins

Detailed Solution

Download Solution PDF

Explanation:

Gear Train:

Sometimes, two or more gears are made to mesh with each other to transmit power from one shaft to another. Such a combination is called a gear train.

They can be of many types:

  • Simple Gear Train
  • Compound Gear Train
  • Reverted Gear Train
  • Epicyclic Gear Train

Reverted Gear train:

  • When the axes of the first gear (i.e. first driver) and the last gear (i.e. last driven or follower) are co-axial, then the gear train is known as a reverted gear train.
  • The motion of the first gear and the last gear is like.
  • The reverted gear trains are used in automotive transmissions, lathe back gears, industrial speed reducers, and clocks.

Simple Gear Train:

  • When every gear axes are fixed relative to the fixed frame and, there is only one gear on each shaft.
  • The number of shafts may be any.

 

Compound Gear Train:

  • When any shaft has more than one gear (first shaft or second shaft or intermediate shaft) i.e. two gear have the same angular velocity, the gear drive is called a compound gear train

Epicyclic gear train:

  • When the gear train is having a relative motion of axes it is called the epicyclic gear train.
  • The axis of at least one of the gears also moves relative to the frame.

Latest NHPC JE Updates

Last updated on May 12, 2025

-> The exam authorities has released the NHPC JE tender notice under supervisor posts through CBT.

->NHPC JE recruitment 2025 notification will be released soon at the official website. 

-> NHPC JE vacancies 2025 will be released for Mechanical, Electrical, Civil and Electronics & Communication disciplines.

-> NHPC JE selection process comprises online computer based test only.

-> Candidates looking for job opportunities as Junior Engineers are advised to refer to the NHPC JE previous year question papers for their preparations. 

-> Applicants can also go through the NHPC JE syllabus and exam pattern for their preparations. 

Hot Links: teen patti master gold apk teen patti mastar teen patti - 3patti cards game downloadable content teen patti - 3patti cards game teen patti game