All Courses
Get the App Signup / Login
Sign in Open App
Mechanical Engineering Exam  >  Mechanical Engineering Tests  >  Test: Efficiency Of Screws - Mechanical Engineering MCQ

Test: Efficiency Of Screws - Mechanical Engineering MCQ


Test Description

10 Questions MCQ Test - Test: Efficiency Of Screws

Test: Efficiency Of Screws for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Test: Efficiency Of Screws questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Test: Efficiency Of Screws MCQs are made for Mechanical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Efficiency Of Screws below.
Solutions of Test: Efficiency Of Screws questions in English are available as part of our course for Mechanical Engineering & Test: Efficiency Of Screws solutions in Hindi for Mechanical Engineering course. Download more important topics, notes, lectures and mock test series for Mechanical Engineering Exam by signing up for free. Attempt Test: Efficiency Of Screws | 10 questions in 20 minutes | Mock test for Mechanical Engineering preparation | Free important questions MCQ to study for Mechanical Engineering Exam | Download free PDF with solutions
Test: Efficiency Of Screws - Question 1
Save

Efficiency of screw depends upon lead of the screw.

Detailed Solution for Test: Efficiency Of Screws - Question 1

Explanation: Efficiency= WL/[Pπd].

Test: Efficiency Of Screws - Question 2
Save

Efficiency of the screw depends upon helix angle but does not depend on friction angle.

Detailed Solution for Test: Efficiency Of Screws - Question 2

Explanation: Efficiency=tan(ἀ)/tan(Ǿ+ἀ) where ἀ=Helix angle and Ǿ=Friction angle.

1 Crore+ students have signed up on EduRev. Have you? Download the App
Test: Efficiency Of Screws - Question 3
Save

 Efficiency of the screw _______ with increase of coefficient of friction.

Detailed Solution for Test: Efficiency Of Screws - Question 3

Explanation: Efficiency is inversely proportional to tan of the sum of helix and efficiency angle.

Test: Efficiency Of Screws - Question 4
Save

Maximum efficiency of a square threaded is given by
Detailed Solution for Test: Efficiency Of Screws - Question 4

Explanation: Efficiency=Sin(2ἀ+Ǿ)-Sin Ǿ /Sin(2 ἀ+Ǿ+Sin Ǿ),For max efficiency, sin(2ἀ+ Ǿ)=1.

Test: Efficiency Of Screws - Question 5
Save

If friction angle is 30’ then the maximum efficiency of the screw is
Detailed Solution for Test: Efficiency Of Screws - Question 5

Explanation: Maximum efficiency=1-sinǾ/1+sinǾ.

Test: Efficiency Of Screws - Question 6
Save

Maximum possible efficiency of a self-locking screw is
Detailed Solution for Test: Efficiency Of Screws - Question 6

Explanation: For self locking screw Ǿ(friction angle)>ἀ (helix angle), hence efficiency < tanǾ/tan(Ǿ+ἀ) or efficiency < tanǾ(1-tan²Ǿ)/2tanǾ.

Test: Efficiency Of Screws - Question 7
Save

In trapezoidal threads, f (coefficient of friction) can be taken as
Detailed Solution for Test: Efficiency Of Screws - Question 7

Explanation: The normal force acting on the thread is W sec θ therefore the effect of the thread angle is to increase the frictional force by a term sec θ.

Test: Efficiency Of Screws - Question 8
Save

Clutch and coupling can be considered to be same.
Detailed Solution for Test: Efficiency Of Screws - Question 8

Explanation: Clutch is a temporary join while coupling is a permanent joint.

Test: Efficiency Of Screws - Question 9
Save

Cold rolled components have higher strengths and hardness than hot rolled components.
Detailed Solution for Test: Efficiency Of Screws - Question 9

Explanation: During grain re-structuring, original strength of material is lost.

Test: Efficiency Of Screws - Question 10
Save

Which of the following are true?
Detailed Solution for Test: Efficiency Of Screws - Question 10

Explanation: Properties of cold working.

Information about Test: Efficiency Of Screws Page
In this test you can find the Exam questions for Test: Efficiency Of Screws solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Efficiency Of Screws, EduRev gives you an ample number of Online tests for practice

Top Courses for Mechanical Engineering

Download as PDF

Top Courses for Mechanical Engineering

Important Questions for Efficiency Of Screws

Find all the important questions for Efficiency Of Screws at EduRev.Get fully prepared for Efficiency Of Screws with EduRev's comprehensive question bank and test resources. Our platform offers a diverse range of question papers covering various topics within the Efficiency Of Screws syllabus. Whether you need to review specific subjects or assess your overall readiness, EduRev has you covered. The questions are designed to challenge you and help you gain confidence in tackling the actual exam. Maximize your chances of success by utilizing EduRev's extensive collection of Efficiency Of Screws resources.

Efficiency Of Screws MCQs with Answers

Prepare for the Efficiency Of Screws within the Mechanical Engineering exam with comprehensive MCQs and answers at EduRev. Our platform offers a wide range of practice papers, question papers, and mock tests to familiarize you with the exam pattern and syllabus. Access the best books, study materials, and notes curated by toppers to enhance your preparation. Stay updated with the exam date and receive expert preparation tips and paper analysis. Visit EduRev's official website today and access a wealth of videos and coaching resources to excel in your exam.

Online Tests for Efficiency Of Screws

Practice with a wide array of question papers that follow the exam pattern and syllabus. Our platform offers a user-friendly interface, allowing you to track your progress and identify areas for improvement. Access detailed solutions and explanations for each test to enhance your understanding of concepts. With EduRev's Online Tests, you can build confidence, boost your performance, and ace Efficiency Of Screws with ease. Join thousands of successful students who have benefited from our trusted online resources.
© 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