All Courses
Get the App Signup / Login
Sign in Open App
Mechanical Engineering Exam  >  Mechanical Engineering Notes  >  Strength of Materials (SOM)  >  GATE Past Year Questions: Torsion of Shafts

GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering PDF Download

Q1: A cylindrical transmission shaft of length 1.5 m and diameter 100 mm is made of a linear elastic material with a shear modulus of 80 GPa. While operating at 500 rpm, the angle of twist across its length is found to be 0.5 degrees. The power transmitted by the shaft at this speed is _______kW. (Rounded off to two decimal places)    Take π=3.14.   (2023)
A. 238.64
B. 254.35
C. 632.25
D. 456.35
Ans: (a)
Sol:  GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical EngineeringGATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering
GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering

Q2: A cylindrical rod of diameter 10 mm and length 1.0 m is fixed at one end. The other end is twisted by an angle of 10º by applying a torque. If the maximum shear strain in the rod is  p x 10-3, then p is equal to ______ (round off to two decimal places). (2019 Set - 1)
A. 0.25
B. 0.5
C. 0.8
D. 0.6
Ans: (c)
Sol: 
GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering
GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering
GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering
GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering

Q3: A bar of circular cross section is clamped at ends P and Q as shown in the figure. A torsional moment T=150 Nm is applied at a distance of 100 mm from end P. The torsional reactions (TP, TQ) in Nm at the ends P and Q respectively are     (2018 Set -2)

GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering

(a) (50,100)
(b) (75,75)
(c) (100,50)
(d) 120,30)
Ans: (c)
Sol: 
GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering

GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering

Q4: A hollow circular shaft of inner radius 10 mm, outer radius 20 mm, and length 1 m is to be used as a torsional spring. If the shear modulus of the material of the shaft is 150 GPa, the torsional stiffness of the shaft (in kN-m/rad) is ________ (correct to two decimal places).     (2018 Set -2)
A. 12.36
B. 18.26
C. 35.34
D. 48.22
Ans: (c)
Sol: 
GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering

Q5: For an Oldham coupling used between two shafts, which among the following statements are correct?     (2018 Set -1)
I. Torsional load is transferred along shaft axis.
II. A velocity ratio of 1:2 between shafts is obtained without using gears.
III. Bending load is transferred transverse to shaft axis.
IV. Rotation is transferred along shaft axis.
A. I and III
B. I and IV
C. II and III
D. II and IV
Ans: (b)
Sol: 
Oldham coupling is used to connect two shafts which are not on the same axis means they are not aligned to the same axis
So,
(1) Torsional load is transferred along shaft axis as both shafts are rotating member.
So, that statement is correct.
(2) A velocity ratio 1:1 between shafts is obtained using gears.
So, this statement is wrong
(3) Bending load is not transferred transverse to shaft axis as there is no transverse load.
(4) Rotation is transferred along shaft axis
So, this statement is correct

Q6: A motor driving a solid circular steel shaft transmits 40kW of power at 500 rpm. If the diameter of the shaft is 40 mm, the maximum shear stress in the shaft is ____MPa. (2017 Set - 1)
A. 60.7
B. 50.5
C. 55.25
D. 51.36
Ans: (a)
Sol:

GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering

Q7: Two circular shafts made of the same material, one solid (S) and one hollow (H), have the same length and polar moment of inertia. Both are subjected to the same torque. Here, θs is the twist and τs  is the maximum shear stress in the solid shaft, whereas  θH  is the twist and  τH  is the maximum shear stress in the hollow shaft. Which one of the following is TRUE?     (2016 Set -3)
A. ( θs = θh  and  τs = τH
B. ( θs > θh  and  τs > τH
C. ( θs < θh  and  τs < τH 
D. (θs = θh  and  τs < τH 
Ans: (d)
Sol: 
GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering
Angle of twist
GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering

Q8: The cross-sections of two solid bars made of the same material are shown in the figure. The square cross-section has flexural (bending) rigidity I1, while the circular cross-section has flexural rigidity I2. Both sections have the same cross-sectional area. The ratio I1/I2 is      (2016 Set -3)
GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering(a) 1/π
(b) 2/π
(c) π/3
(d) π/6
Ans: (c)
Sol: 
GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering
GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering

Q9: A simply supported beam of length 2L is subjected to a moment M at the mid-point x = 0 as shown in the figure. The deflection in the domain o≤x≤L is given by GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering
where E is the Young's modulus, I is the area moment of inertia and c is a constant (to be determined)    (2016Set -2)
GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering
The slope at the center x = 0 is
(a) ML/(2EI)
(b) ML/(3EI)
(c) ML/(6EI)
(d) ML/(12EI)
Ans: (c)
Sol: 
GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering
Equation of deflection
GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering
GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering

Q10: A rigid horizontal rod of length 2L is fixed to a circular cylinder of radius R as shown in the figure. Vertical forces of magnitude P are applied at the two ends as shown in the figure. The shear modulus for the cylinder is G and the Young's modulus is E.    (2016 Set -2)
GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering
The vertical deflection at point A is
(a) GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering
(b) GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering
(c) GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering
(d) GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering
Ans: (d)
Sol:  
GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering
GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering

Question for GATE Past Year Questions: Torsion of Shafts
Try yourself:A cyiindrical elastic body subjected to pure torsion about its axis develops

[1989]

View Solution

Question for GATE Past Year Questions: Torsion of Shafts
Try yourself: A circular rod of diameter d and length 3d is subjected to a compressive force F acting at the top point as shown below. Calculate the stress at the bottom most support point A
GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering

[1993]

View Solution

Question for GATE Past Year Questions: Torsion of Shafts
Try yourself: Maximum shear stress developed on the surface of a solid circular shaft under pure torsion is 240 MPa. If the shaft diameter is doubled then the maximum shear stress developed corresponding to the same torque will be

[2003]

View Solution

Question for GATE Past Year Questions: Torsion of Shafts
Try yourself:A solid circular shaft of 60mm diameter transmits a torque of 1600 Nm. The value of maximum shear stress developed is

[2004]

View Solution

Question for GATE Past Year Questions: Torsion of Shafts
Try yourself:For a circular shaft of diameter d subjected to torque T, the maximum value of the shear stress is

[2006]

View Solution

Question for GATE Past Year Questions: Torsion of Shafts
Try yourself:A solid circular shaft of diameter d is subjected to a combined bending moment M and torque, T. The material property to be used for designing the shaft using the relation GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineeringis 
View Solution

Question for GATE Past Year Questions: Torsion of Shafts
Try yourself:A shaft with a circular cross-section is subjected to pure twisting moment. The ratio of the maximum shear stress to the largest principal stress is

[2016]

View Solution

Question for GATE Past Year Questions: Torsion of Shafts
Try yourself:A machine element XY, fixed at end X, is subjected to an axial load P, transverse load F, and a twisting moment T at its free end Y. The most critical point from the strength point of view is
GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering

[2016]

View Solution

Question for GATE Past Year Questions: Torsion of Shafts
Try yourself:The compound shaft shown is built-in at the two ends. It is subjected to a twisting moment T at the middle. What is the ratio of the reaction torques T1, and T2 at the ends?
GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering
View Solution

Question for GATE Past Year Questions: Torsion of Shafts
Try yourself:Two shafts A and B are made of the same material. The diameter of shaft B is twice that of shaft A. The ratio of power which can be transmitted by shaft A to that of shaft B is (If maximum shear stress remains the same)

[1994]

View Solution

Question for GATE Past Year Questions: Torsion of Shafts
Try yourself:A torque of 1.0 Nm is transmitted through a stepped shaft as shown in figure. The torsional stiffnesses of individual sections of lengths M N, NO and OP are 20 Nm/rad, 30 Nm/rad and 60 Nm/rad respectively. The angular deflection between the ends M and P of the shaft is
GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering

[2004]

View Solution

Question for GATE Past Year Questions: Torsion of Shafts
Try yourself:Two shafts AB and BC, of equal length and diameters d and 2d, are made of the same material. They are joined at B through a shaft coupling, while the ends A and C are built-in (cantilevered). A twisting moment T is applied to the coupling. If TA and Tc represent the twisting moments at the ends A and C, respectively, then

[2005]

View Solution

Question for GATE Past Year Questions: Torsion of Shafts
Try yourself:A torque T is applied at the free end of a stepped rod of circular cross-sections as shown in the figure. The shear modulus of the material of the rod is G. The expression for d to produce an angular twist q at the free end is
GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering

[2011]

View Solution

Question for GATE Past Year Questions: Torsion of Shafts
Try yourself:A hollow shaft (d0 = 2di where d0 and di are the outer and inner diameters respectively) needs to transmit 20 kW power at 3000 RPM. If the maximum permissible shear stress is 30 MPa, d0 is

[2015]

View Solution

Question for GATE Past Year Questions: Torsion of Shafts
Try yourself: A stepped steel shaft shown below is subjected to 10 N-m torque. If the modulus of rigidity is 80 GPa, the strain energy in the shaft in N-mm is​
GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering

[2007]

View Solution

The document GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering is a part of the Mechanical Engineering Course Strength of Materials (SOM).
All you need of Mechanical Engineering at this link: Mechanical Engineering
37 videos|39 docs|45 tests
Join Course for Free

Top Courses for Mechanical Engineering

FAQs on GATE Past Year Questions: Torsion of Shafts - Strength of Materials (SOM) - Mechanical Engineering

1. What is torsion in mechanical engineering?
Ans. Torsion refers to the twisting of a shaft or structural member due to the application of torque. It occurs when a force is applied to one end of the shaft, causing it to rotate around its longitudinal axis.
2. Why is torsion important in mechanical engineering?
Ans. Torsion is important in mechanical engineering as it helps determine the strength and stability of shafts and other structural components. It is crucial in designing and analyzing systems that involve rotating machinery, such as engines, turbines, and transmission systems.
3. What are the factors affecting torsion in shafts?
Ans. Several factors affect torsion in shafts, including the material properties of the shaft, the applied torque, the length and diameter of the shaft, and the presence of any external loads or constraints. These factors influence the amount of torsional stress and deformation experienced by the shaft.
4. How is torsional stress calculated in mechanical engineering?
Ans. Torsional stress in a shaft can be calculated using the formula: Torsional stress = (Torque * Radius) / (Polar moment of inertia). The polar moment of inertia depends on the shape of the cross-section of the shaft and can be determined using standard engineering formulas or tables.
5. What are the common failure modes in torsion of shafts?
Ans. The common failure modes in torsion of shafts include shear failure, fatigue failure, and excessive deformation. Shear failure occurs when the shear stress exceeds the shear strength of the material, causing the shaft to fracture. Fatigue failure occurs due to repeated cyclic loading, leading to crack initiation and propagation. Excessive deformation can result in permanent bending or twisting of the shaft, affecting its functionality.
Related Exams
About this Document
4.61/5 Rating
Nov 21, 2024 Last updated
Document Description: GATE Past Year Questions: Torsion of Shafts for Mechanical Engineering 2024 is part of Strength of Materials (SOM) preparation. The notes and questions for GATE Past Year Questions: Torsion of Shafts have been prepared according to the Mechanical Engineering exam syllabus. Information about GATE Past Year Questions: Torsion of Shafts covers topics like and GATE Past Year Questions: Torsion of Shafts Example, for Mechanical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for GATE Past Year Questions: Torsion of Shafts.
Introduction of GATE Past Year Questions: Torsion of Shafts in English is available as part of our Strength of Materials (SOM) for Mechanical Engineering & GATE Past Year Questions: Torsion of Shafts in Hindi for Strength of Materials (SOM) course. Download more important topics related with notes, lectures and mock test series for Mechanical Engineering Exam by signing up for free. Mechanical Engineering: GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering
Description
Full syllabus notes, lecture & questions for GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering - Mechanical Engineering | Plus excerises question with solution to help you revise complete syllabus for Strength of Materials (SOM) | Best notes, free PDF download
Information about GATE Past Year Questions: Torsion of Shafts
In this doc you can find the meaning of GATE Past Year Questions: Torsion of Shafts defined & explained in the simplest way possible. Besides explaining types of GATE Past Year Questions: Torsion of Shafts theory, EduRev gives you an ample number of questions to practice GATE Past Year Questions: Torsion of Shafts tests, examples and also practice Mechanical Engineering tests
37 videos|39 docs|45 tests
Join Course for Free
Download as PDF
Explore Courses for Mechanical Engineering exam

Top Courses for Mechanical Engineering

Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Related Searches

GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering

,

Free

,

past year papers

,

MCQs

,

Semester Notes

,

Sample Paper

,

Extra Questions

,

Viva Questions

,

mock tests for examination

,

Important questions

,

study material

,

Objective type Questions

,

video lectures

,

pdf

,

Summary

,

Previous Year Questions with Solutions

,

GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering

,

ppt

,

GATE Past Year Questions: Torsion of Shafts | Strength of Materials (SOM) - Mechanical Engineering

,

Exam

,

shortcuts and tricks

,

practice quizzes

;
Additional Information about GATE Past Year Questions: Torsion of Shafts for Mechanical Engineering Preparation

GATE Past Year Questions: Torsion of Shafts Free PDF Download

The GATE Past Year Questions: Torsion of Shafts is an invaluable resource that delves deep into the core of the Mechanical Engineering exam. These study notes are curated by experts and cover all the essential topics and concepts, making your preparation more efficient and effective. With the help of these notes, you can grasp complex subjects quickly, revise important points easily, and reinforce your understanding of key concepts. The study notes are presented in a concise and easy-to-understand manner, allowing you to optimize your learning process. Whether you're looking for best-recommended books, sample papers, study material, or toppers' notes, this PDF has got you covered. Download the GATE Past Year Questions: Torsion of Shafts now and kickstart your journey towards success in the Mechanical Engineering exam.

Importance of GATE Past Year Questions: Torsion of Shafts

The importance of GATE Past Year Questions: Torsion of Shafts cannot be overstated, especially for Mechanical Engineering aspirants. This document holds the key to success in the Mechanical Engineering exam. It offers a detailed understanding of the concept, providing invaluable insights into the topic. By knowing the concepts well in advance, students can plan their preparation effectively. Utilize this indispensable guide for a well-rounded preparation and achieve your desired results.

GATE Past Year Questions: Torsion of Shafts Notes

GATE Past Year Questions: Torsion of Shafts Notes offer in-depth insights into the specific topic to help you master it with ease. This comprehensive document covers all aspects related to GATE Past Year Questions: Torsion of Shafts. It includes detailed information about the exam syllabus, recommended books, and study materials for a well-rounded preparation. Practice papers and question papers enable you to assess your progress effectively. Additionally, the paper analysis provides valuable tips for tackling the exam strategically. Access to Toppers' notes gives you an edge in understanding complex concepts. Whether you're a beginner or aiming for advanced proficiency, GATE Past Year Questions: Torsion of Shafts Notes on EduRev are your ultimate resource for success.

GATE Past Year Questions: Torsion of Shafts Mechanical Engineering

The "GATE Past Year Questions: Torsion of Shafts Mechanical Engineering Questions" guide is a valuable resource for all aspiring students preparing for the Mechanical Engineering exam. It focuses on providing a wide range of practice questions to help students gauge their understanding of the exam topics. These questions cover the entire syllabus, ensuring comprehensive preparation. The guide includes previous years' question papers for students to familiarize themselves with the exam's format and difficulty level. Additionally, it offers subject-specific question banks, allowing students to focus on weak areas and improve their performance.

Study GATE Past Year Questions: Torsion of Shafts on the App

Students of Mechanical Engineering can study GATE Past Year Questions: Torsion of Shafts alongwith tests & analysis from the EduRev app, which will help them while preparing for their exam. Apart from the GATE Past Year Questions: Torsion of Shafts, students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc. The EduRev App will make your learning easier as you can access it from anywhere you want. The content of GATE Past Year Questions: Torsion of Shafts is prepared as per the latest Mechanical Engineering syllabus.
© EduRev
Education Revolution
Follow Us
Signup to see your scores go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup