Identification of Materials based on Chemical Composition

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What is the maximum allowable phosphorus content for free cutting steel?

0.04%

0.50%

0.11% (correct)

0.20%

Which property class applies only to sizes up to 16 mm thread diameter?

12.9

9.8 (correct)

10.9

8.8

What is torque used to create in thread fasteners?

Tension (correct)

Heat

Compression

Vibration

For which size can a tempering temperature of 425°C be used?

M20 and larger Signup and view all the answers

What is critical with the amount of tension created in the bolt?

The amount of tension Signup and view all the answers

Which elements must alloy steel contain?

Chromium, Nickel, Molybdenum, Vanadium Signup and view all the answers

What is the maximum allowable sulfur content for allowed classes?

0.35% Signup and view all the answers

What is the function of a pneumatic torque wrench?

To multiply torque Signup and view all the answers

In what range do nuts of higher property classes need to be used in place of nuts of lower property classes?

8.8-14.9 Signup and view all the answers

What should be used to adjust the tightness of nuts and bolts to a desired value?

Torque wrench Signup and view all the answers

What should one not do when using a bar type torque wrench?

Touch anything with the beam of the wrench Signup and view all the answers

What defines a power tool?

Activated by a power source Signup and view all the answers

What is the purpose of sharpening a flat scraper?

To improve the cutting efficiency Signup and view all the answers

How should one avoid overheating while grinding a flat scraper?

By using wet wheel grinding or cooling arrangement Signup and view all the answers

What type of grinding wheel is suggested for sharpening flat scrapers with carbide tips?

Silicon carbide wheel Signup and view all the answers

What is the recommended lubricant to be used during honing of a flat scraper?

Light mineral oil mixed with kerosene Signup and view all the answers

How should the flat scraper be held while grinding the cutting edges?

Vertical and flat on the tool rest Signup and view all the answers

What movement should be applied when honing the faces of a flat scraper?

Movement as shown in Fig 5 Signup and view all the answers

What is the purpose of a gauge in mass production?

To check product dimensions against acceptable limits Signup and view all the answers

Which material are gauges typically made of?

Tool steel Signup and view all the answers

What do gauges help to segregate in mass production?

Acceptable and non-acceptable products Signup and view all the answers

What is one of the advantages of using gauges in production processes?

Faster checking within specified limits Signup and view all the answers

Which of the following is NOT a common material for making gauges?

Copper Signup and view all the answers

What does heat treatment do to the material of a gauge?

It strengthens the material Signup and view all the answers

What is the purpose of snap gauges?

To check diameters and threads within certain limits Signup and view all the answers

How are internal threads typically checked?

By comparing the size to cylindrical plug gauges Signup and view all the answers

What is the main material used to make slip gauges?

Hardened steel with low thermal expansion Signup and view all the answers

How are snap gauges generally shaped?

C-shaped Signup and view all the answers

What is the function of thread plug gauges?

Check internal threads with 'Go' and 'No-Go' ends Signup and view all the answers

Why are slip gauges hardened throughout?

For stabilization and precision Signup and view all the answers