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ISRO Technician-B Machinist 2019
13

ISRO Technician-B Machinist Question Paper - 2019 (Set -1) with Answer Key

13) If 18:4:1 specifies general composition of high speed steel, the constituents are in the order

tungsten, chromium, vanadium

chromium, tungsten, vanadium

chromium, vanadium, tungsten

vanadium, tungsten, chromium

Answer is:

tungsten, chromium, vanadium

ISRO Technician-B Machinist Question Paper - 2019 (Set -1) with Answer Key

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Related ISRO Technician-B Machinist Question Paper - 2019 (Set -1) with Answer Key

14) Lead screws of machine tools are made of

Buttress thread

Acme thread

Square thread

Saw tooth thread

Answer is:

Acme thread

Lead screws of machine tools are made of

15) Which of the following is a form of trapezoidal thread?

Acme Thread

Buttress thread

Worm Thread

All of the above

Answer is:

All of the above

16) Effective diameter of a thread can be measured using

Screw thread micrometer

Three wire method

Selection of best wire method

All of the above

Answer is:

All of the above

17) Removal of clogs and blunt abrasive grains from the surface of the grinding wheel is known as

Truing

Dressing

Glazing

Loading

Answer is:

Dressing

ISRO Technician-B Machinist Question Paper - 2019 (Set -1) with Answer Key

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