This set of Machine Dynamics Questions and Answers for Aptitude test focuses on “Computer Aided Analysis for Slider Crank Mechanism”.
1. Thumbwheels are usually mounted on:
a) Keyboard
b) Monitor
c) CPU
d) Mouse
View Answer
Explanation: None
2. The screen is scanned from left to right, top to bottom all the time to generate graphics by:
a) Raster scans
b) Random scan
c) Vector scan
d) Stoke writing
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Explanation: In a raster- scan system, the electron beam is swept across the screen, one row at a time from top to bottom. As the electron beam moves across each row, the beam intensity is turned on and off to create a pattern of illuminated spots.
3. Color raster display uses three electron guns, namely:
a) Red, green and blue
b) Red, green and yellow
c) White, blue and black
d) Red, black and white
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Explanation: Usual color image (e.g. aerial photo) is a raster consisting of red, blue and green band. Single band layers typically represent either continuous variables.
4. The software that is used for file manipulations, managing directories and subdirectories, programming and accounts setups is known as:
a) Graphics software
b) Operating system
c) Application software
d) Programming language
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Explanation: Application software can be divided into two general classes: systems software and applications software. Applications software (also called end-user programs) include such things as database programs, word processors, Web browsers and spreadsheets.
5. The software that provides users with various functions to perform geometric modelling and construction. Editing and manipulation of existing geometry. drafting and documentation is known as:
a) Operating system
b) Application software
c) Graphics software
d) Programming language
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Explanation: In computer graphics, graphics software or image editing software is a program or collection of programs that enable a person to manipulate visual images on a computer. These are the application software which lets the user to create and manipulate any type of computer graphics with the use of an operating system.
6. The software used for the purpose of mass property calculations, assembly analysis, tolerance analysis, finite element analysis, mechanisms analysis, sheet metal design, analysis of plastic injection molding and animation techniques is:
a) Graphics software
b) Operating system
c) Application software
d) Programming language
View Answer
Explanation: Application software can be divided into two general classes: systems software and applications software. Applications software (also called end-user programs) include such things as database programs, word processors, Web browsers and spreadsheets.
7. The software that enables the user to implement custom applications or modify the system for specialized needs is known as:
a) Programming language
b) Operating system
c) Application software
d) Graphics software
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Explanation: A programming language is a formal constructed language designed to communicate instructions to a machine, particularly a computer. Programming languages can be used to create programs to control the behavior of a machine or to express algorithms.
8. The following is not a graphics standard:
a) GKS
b) IGBS
c) UNIX
d) PHIGS
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Explanation: UNIX is a computer Operating System which is capable of handling activities from multiple users at the same time.
9. In the following geometric modelling techniques which are not three-dimensional modelling?
a) Wireframe modelling
b) Drafting
c) Surface modelling
d) Solid modelling
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Explanation: Technical drawing, also known as drafting or draughting, is the act and discipline of composing drawings that visually communicate how something functions or is to be constructed.
10. In the following three-dimensional modelling techniques, Which do not require much computer time and memory?
a) Surface modelling
b) Solid modelling
c) Wireframe modelling
d) All of the mentioned
View Answer
Explanation: Compared to surface and solid modeling, wireframe modeling is the least complex method for representing 3D images.
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