ISRO Technician-B Machinist Question Paper - 2016 (Set -1) with Answer Key

ISRO Technician-B Machinist Question Paper - 2016 (Set -1) with Answer Key

11) In the thread designation 'M12 x 1.25', 'M' specifies

Answer is:

ISO metric thread

12) A fastener is designated as M5 x 0.8. If the length of the threaded portion is 4 mm, the number of threads available is

Answer is:

5

13) Balls or rollers are used for precision measurement because

Answer is:

They provide line or point contract

14) Coating on a carbide tool increases

Answer is:

all of the above

15) Cast iron is an example for

Answer is:

Brittle material

Explanation:

Brittleness
Brittleness is a property of material which breaks with little or no deformation.