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Mechanics Quiz - Objective & Theoretical Questions

8 Questions

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Mechanics Quiz - Objective & Theoretical Questions

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Questions and Answers

Which type of support allows rotation but prevents translation in any direction?

Hinged Support (correct)

Fixed Support

Floating Support

Roller Support

What is the function of the centroid in mechanics?

To find the point of maximum stress in a structure

To determine the center of mass for uniform load distribution (correct)

To resolve all applied forces in a structural analysis

To identify the rotational equilibrium point of a body

For which type of force system is Lami's theorem applicable?

Concurrent forces acting in different planes

Coplanar concurrent forces (correct)

Non-concurrent forces acting on a rigid body

All types of force systems

Which of the following methods is commonly used to determine internal forces in a truss?

Method of Sections (C) Signup and view all the answers

What characterizes uniform rectilinear motion?

Acceleration is zero (D) Signup and view all the answers

The instantaneous center of rotation indicates what aspect of rigid body motion?

The point of zero velocity (A) Signup and view all the answers

D'Alembert's principle is primarily used for which analysis?

Dynamic analysis of moving objects (C) Signup and view all the answers

Which type of motion is NOT characterized by constant acceleration?

Uniform circular motion (D) Signup and view all the answers

Study Notes

Instructions to Students

Each question carries 12 marks
Question 1 is compulsory and includes objective-type questions
Candidates must attempt 4 questions from questions 2 to 6
Scientific calculators are allowed
Assume suitable data where needed

Question 1 - Objective Questions

Q1.1: Fixed, roller, hinged, and floating supports are types of support in mechanics. A roller support is NOT a type of support in mechanics.
Q1.2: The centroid of a composite shape is the point where the shape can rotate freely.
Q1.3: Lami's theorem applies to coplanar, concurrent force systems.
Q1.4: The method of joints is NOT used to analyze a truss; the methods which ARE used to analyze trusses are nodes and graphical methods;
Q1.5: Projectile motion is a motion with constant acceleration.
Q1.6: The instantaneous center of rotation of a rigid body is a point where velocity is zero.
Q1.7: D'Alembert's principle can be used to convert a dynamic problem into a static one, study impulse and momentum, and analyze rolling resistance.

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Description

Test your understanding of mechanics with this quiz featuring a mix of objective questions and theoretical problems. Covering support types, centroid concepts, and methods for analyzing trusses, this quiz aims to challenge your knowledge of fundamental mechanics principles. Prepare your scientific calculators and dive into this engaging assessment!