Excel Instruments Interview Questions and Answers

45 minutes, 15-20 questions Includes English, basic Engineering

Q1. Difference between First & Third Angle
Ans. 
First and Third Angle are two different methods of representing orthographic projections in engineering drawings.
• First Angle Projection is commonly used in Europe and Asia, while Third Angle Projection is commonly used in North America.

• In First Angle Projection, the object is placed in the first quadrant and the views are projected onto the planes surrounding the object.

• In Third Angle Projection, the object is placed i...read more
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Q2. What TORR stands for
Ans. 
TORR stands for Torricelli, a unit of pressure equal to one millimeter of mercury.
• TORR is a unit of pressure used in various fields, including engineering and physics.

• It is named after Evangelista Torricelli, an Italian physicist and mathematician.

• 1 TORR is equal to the pressure exerted by a column of mercury 1 millimeter high in a vacuum.

• TORR is commonly used in vacuum measurements and is equivalent to approximately 1...read more
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Q3. What is menat by knurling?
Ans. 
Knurling is a process of creating a pattern of ridges on a cylindrical or flat surface to improve grip or aesthetics.
• Knurling is commonly used on tools, handles, and knobs to provide a better grip.

• It involves pressing a knurling tool against the surface to create a pattern of ridges or diamond-shaped impressions.

• Knurling can be done on various materials such as metal, plastic, or wood.

• The pattern created by knurling ca...read more
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Q4. Difference between QA & QC
Ans. 
QA focuses on preventing defects, while QC focuses on identifying and fixing defects.
• QA stands for Quality Assurance and is a proactive process that focuses on preventing defects by establishing processes and standards.

• QC stands for Quality Control and is a reactive process that focuses on identifying and fixing defects through inspections and testing.

• QA involves activities like creating test plans, conducting reviews,...read more
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Q1. Draw 1st angle & 3rd angle symbol
Ans. 
To draw 1st angle symbol, draw a square with a horizontal line on top and a vertical line on the right. To draw 3rd angle symbol, draw a square with a horizontal line on bottom and a vertical line on the left.
• 1st angle symbol is commonly used in Europe and Asia while 3rd angle symbol is commonly used in North America.

• The symbol indicates the orientation of the object in relation to the views shown on the drawing.

• 1st an...read more
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Q2. What is Knurling?
Ans. 
Knurling is a manufacturing process used to create a pattern of small, raised lines or ridges on a surface.
• It is commonly used on handles or grips to improve grip and prevent slipping.

• Knurling can be done using a lathe or a specialized knurling tool.

• The pattern created by knurling can vary in size, shape, and spacing depending on the desired outcome.

• Knurling can also be used for decorative purposes, such as on jewelry
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Q3. "Torr" is the unit for
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