- A. Circular interpolation in counter clockwise direction and incremental dimension
- B. Circular interpolation in counter clockwise direction and absolute dimension
- C. Circular interpolation in clockwise direction and incremental dimension
- D. Circular interpolation in clockwise direction and absolute dimension
Manufacturing and Production Technology
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In a CNC program block, N002 GO2 G91 X40 Z40……, GO2 and G91 refer to_____.
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The average cutting speed for turning brass with a high speed steel tool is_____.
- A. 15 to 19 m/min
- B. 25 to 31 m/min
- C. 60 to 90 m/min
- D. 90 to 120 m/min
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Green sand mould indicates that_____.
- A. Polymeric mould has been cured
- B. Mould has been totally dried
- C. Mould is green in colour
- D. Mould contains moisture
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A dense structure of a grinding wheel is used for_____.
- A. Hard materials
- B. Brittle materials
- C. Finishing cuts
- D. All of these
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The type of tool used on milling machine and broaching machine is_____.
- A. Single point cutting tool
- B. Two point cutting tool
- C. Three point cutting tool
- D. Multi-point cutting tool
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The cutting speed for drilling aluminium, brass and bronze with high speed steel drills varies from_____.
- A. 10 to 20 m/min
- B. 18 to 30 m/min
- C. 24 to 45 m/min
- D. 60 to 90 m/min
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The average cutting speed for turning mild steel with a high speed steel tool is_____.
- A. 15 to 19 m/min
- B. 25 to 31 m/min
- C. 60 to 90 m/min
- D. 90 to 120 m/min
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In an interchangeable assembly, shafts of size 25.000 -0.0100⁺⁰∙⁰⁴⁰ mm mate with holes of size 25.000 -0.010⁺⁰∙⁰²⁰ mm. The maximum possible clearance in the assembly will be_____.
- A. 10 microns
- B. 20 microns
- C. 30 microns
- D. 60 microns
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The tool life in case of a grinding wheel is the time_____.
- A. Between two successive regrinds of the wheel
- B. Taken for the wheel to be balanced
- C. Taken between two successive wheel dressings
- D. Taken for a wear of 1 mm on its diameter
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What is the type of welding defect caused due to poor deposition of weld rod is called?
- A. Porosity
- B. Undercut
- C. Under fill
- D. Crack