The taper shank drills are held on the machine by means of:

This question was previously asked in
RRB ALP Mechanic Diesel 21 Jan 2019 Official Paper (Shift 1)
View all RRB ALP Papers >
  1. chucks
  2. sleeves
  3. drift
  4. vice

Answer (Detailed Solution Below)

Option 2 : sleeves
Free
General Science for All Railway Exams Mock Test
2.1 Lakh Users
20 Questions 20 Marks 15 Mins

Detailed Solution

Download Solution PDF

Explanation:

Taper shank drills:

  • Taper shank drills have a morse taper.
  • Sleeves and sockets are made with the same taper so that the taper shank of the drill.
  • When engaged, it will give a good wedging action.
  • Due to this reason, morse tapers are called self-holding tapers.
  • The taper shank drills are held on the machine by means of sleeves.
  • Drills are provided with five different sizes of morse tapers and are numbered from MT1 to MT5.
  • In order to make up for the difference in sizes between the shanks of the drills and the type of machine spindles, sleeves of different sizes are used.
  • When the drill taper shank is bigger than the machine spindle, taper sockets are used.
  • While fixing the drill in a socket or sleeves the tang portion should align in the slot.
  • This will facilitate the removal of the drill or sleeve from the machine spindle.
  • Drift is used to remove the drills and sockets from the machine spindle.

  

Latest RRB ALP Updates

Last updated on Jun 11, 2025

-> The RRB NTPC Admit Card 2025 has been released on 1st June 2025 on the official website.

-> The UPSC Prelims Result 2025 and UPSC IFS Result 2025 has been released @upsc.gov.in

-> Railway Recruitment Board activated the RRB ALP application form 2025 correction link, candidates can make the correction in the application form till 31st May 2025. 

-> The Railway Recruitment Board (RRB) has released the official RRB ALP Notification 2025 to fill 9,970 Assistant Loco Pilot posts.

-> The Railway Recruitment Board (RRB) has released the official RRB ALP Notification 2025 to fill 9,970 Assistant Loco Pilot posts.

-> The official RRB ALP Recruitment 2025 provides an overview of the vacancy, exam date, selection process, eligibility criteria and many more.

->The candidates must have passed 10th with ITI or Diploma to be eligible for this post. 

->The RRB Assistant Loco Pilot selection process comprises CBT I, CBT II, Computer Based Aptitude Test (CBAT), Document Verification, and Medical Examination.

-> This year, lakhs of aspiring candidates will take part in the recruitment process for this opportunity in Indian Railways. 

-> Serious aspirants should prepare for the exam with RRB ALP Previous Year Papers.

-> Attempt RRB ALP GK & Reasoning Free Mock Tests and RRB ALP Current Affairs Free Mock Tests here

Get Free Access Now
Hot Links: teen patti master golden india teen patti tiger teen patti baaz