Calculate the hook length of the bar in one side with a diameter of 16 mm.

This question was previously asked in
SSC JE Civil 9 Oct 2023 Shift 1 Official Paper-I
View all SSC JE CE Papers >
  1. 100 mm
  2. 144 mm
  3. 166 mm
  4. 120 mm

Answer (Detailed Solution Below)

Option 2 : 144 mm
Free
Building Materials for All AE/JE Civil Exams Mock Test
15.8 K Users
20 Questions 20 Marks 20 Mins

Detailed Solution

Download Solution PDF

Explanation:

  • The length of one hook may be taken as 9× dia and the total length is taken as L + 18 D, as shown in figure.

F1 Abhishek Deepak 13.12.2019 D7

So, the length of hook = 9 × 16 = 144 mm

Additional Information

  • For 45 degree cranked or bent up bar 
    • The additional length for one bent up is = difference in length of hypotenuse and base = =   d/sin45°- d =  =  0.42d = 0.45d ( approx)
  • For 30 degree cranked or bent up bar 
    • Inclined length of crank = d/sin30° = 2d
    • The horizontal length of crank =  d/tan30 = 1.73d
    • The extra length required for one crank = 2d-1.73d = 0.27d = 0.3d (say)
    • For a bar cranked at both ends at 30 the additional length is equal to 2 × 0.3d = 0.6d
Latest SSC JE CE Updates

Last updated on Jul 1, 2025

-> SSC JE notification 2025 for Civil Engineering has been released on June 30. 

-> Candidates can fill the SSC JE CE application from June 30 to July 21.

-> SSC JE Civil Engineering written exam (CBT-1) will be conducted on 21st to 31st October.

-> The selection process of the candidates for the SSC Junior Engineer post consists of Paper I, Paper II, Document Verification, and Medical Examination.

-> Candidates who will get selected will get a salary range between Rs. 35,400/- to Rs. 1,12,400/-.

-> Candidates must refer to the SSC JE Previous Year Papers and SSC JE Civil Mock Test, SSC JE Electrical Mock Test, and SSC JE Mechanical Mock Test to understand the type of questions coming in the examination.

-> The Staff Selection Commission conducts the SSC JE exam to recruit Junior Engineers in different disciplines under various departments of the Central Government.

Get Free Access Now
Hot Links: lucky teen patti teen patti master old version teen patti 50 bonus teen patti vip