Get premium membership and access questions with answers, video lessons as well as revision papers.
(1) Frame. The U frame of micrometer is made of either steel or cast iron
(2) Hardened anvil. It protrudes from the frame for a distance of at least 3 mm for holding and
supporting the jobs for measurement.
(3) Screwed spindle. It does the actual measuring and possesses threads of 0.5 mm pitch.
(4) Barrel or Sleeve. It has datum line and fixed graduations.
(5) Thimble. This is a tubular cover fastened with the spindle and moves with the spindle. The
beveled edge of the thimble is divided into 50 equal parts, every fifth being numbered.
(6) Ratchet. This part is commonly recognized as friction stop of the micrometer, which acts as
a precautionary measure also. It is a small extension to the thimble in which the ratchet slips
when the pressure on the screw exceeds a certain amount.
This produces uniform reading and prevents any damage or distortion of the instrument.
(7) Spindle clamp. It is used to lock the instrument at any desired setting or at any particular
reading.
Kavungya answered the question on March 6, 2019 at 13:51
- List the care measures for hacksaws(Solved)
List the care measures for hacksaws.
Date posted: March 6, 2019. Answers (1)
- Describe the operations performed by a drilling machine.(Solved)
Describe the operations performed by a drilling machine.
Date posted: March 6, 2019. Answers (1)
- Describe the devices used for holding drills.(Solved)
Describe the devices used for holding drills.
Date posted: March 6, 2019. Answers (1)
- Describe the Types of Drilling Machines.(Solved)
Describe the Types of Drilling Machines.
Date posted: March 6, 2019. Answers (1)
- Define the term drilling(Solved)
Define the term drilling.
Date posted: March 6, 2019. Answers (1)
- Describe the various checking and measuring instruments(Solved)
Describe the various checking and measuring instruments.
Date posted: March 6, 2019. Answers (1)
- Describe the following.
1.File card
2.Screw driver
3.Spanner
4.Pliers(Solved)
Describe the following.
1.File card
2.Screw driver
3.Spanner
4.Pliers
Date posted: March 6, 2019. Answers (1)
- State and explain the marking tools.(Solved)
State and explain the marking tools.
Date posted: March 6, 2019. Answers (1)
- Describe the types of Holding devices.(Solved)
Describe the types of Holding devices.
Date posted: March 6, 2019. Answers (1)
- Describe the types of hammers.(Solved)
Describe the types of hammers.
Date posted: March 6, 2019. Answers (1)
- Describe the parts of a hammer.(Solved)
Describe the parts of a hammer.
Date posted: March 6, 2019. Answers (1)
- List the purposes of a hammer.(Solved)
List the purposes of a hammer.
Date posted: March 6, 2019. Answers (1)
- Define a socket.(Solved)
Define a socket.
Date posted: March 6, 2019. Answers (1)
- Explain the two types of dies.(Solved)
Explain the two types of dies.
Date posted: March 6, 2019. Answers (1)
- Define a Dice.(Solved)
Define a Dice.
Date posted: March 6, 2019. Answers (1)
- Describe the 3 types of taps.(Solved)
Describe the 3 types of taps.
Date posted: March 6, 2019. Answers (1)
- Describe a tap.(Solved)
Describe a tap.
Date posted: March 6, 2019. Answers (1)
- Describe the two types of reamers.(Solved)
Describe the two types of reamers.
Date posted: March 6, 2019. Answers (1)
- Define a reamer.(Solved)
Define a reamer.
Date posted: March 6, 2019. Answers (1)
- Describe the types of drills.(Solved)
Describe the types of drills.
Date posted: March 6, 2019. Answers (1)