43) The cutting edge of a chisel should be

hardened

tempered

hardened and tempered

case hardened

Answer is:

hardened and tempered

ISRO Draughtsman-B Mechanical Question Paper - 2019 (Set -1) with Answer Key

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44) The main purpose of boring operation is to

drill a hole

ream the drilled hole

enlarge the existing hole

none of the above

Answer is:

enlarge the existing hole

45) If the diameter of a hole is subject to considerable variation, then for locating in jigs and fixtures, the pressure type of locator used is

Conical locator

Cylindrical locator

Diamond pin locator

Vee locator

Answer is:

Conical locator

46) In conic sections, a double ordinate that passes through the focus is called

Latus rectum

Double ordinate

Ordinate

Abscissa

Answer is:

Latus rectum

47) In projected half sectional view

External details of the object is only shown

Internal & External details of the object are shown

Internal details of the object is only shown

none of these

Answer is:

Internal & External details of the object are shown

ISRO Draughtsman-B Mechanical Question Paper - 2019 (Set -1) with Answer Key

For more MCQ's Click Here

43) The cutting edge of a chisel should be

hardened and tempered

ISRO Draughtsman-B Mechanical Question Paper - 2019 (Set -1) with Answer Key

Related ISRO Draughtsman-B Mechanical Question Paper - 2019 (Set -1) with Answer Key

44) The main purpose of boring operation is to

enlarge the existing hole

45) If the diameter of a hole is subject to considerable variation, then for locating in jigs and fixtures, the pressure type of locator used is

Conical locator

46) In conic sections, a double ordinate that passes through the focus is called

Latus rectum

47) In projected half sectional view

Internal & External details of the object are shown

ISRO Draughtsman-B Mechanical Question Paper - 2019 (Set -1) with Answer Key