பிரதான உள்ளடக்கத்திற்கு செல்

Assignment

Kindly answer the questions in the box mentioned below:

1. What is the name of tool shown in figure?


A Hand drill

B Hand reamer

C Machine drill

D Machine reamer

 

2 What is the use of a reamer?

A Drill a hole

B Change a hole

C Finish an existing hole

D Thread an existing hole

 

3 A hand reamer can be identified by the....

A Mark on the neck

B Length of the body

C Length of the flutes

D Square on the shank

 

4 Which method is suitable to remove the reamer from drilled hole?

A By pulling it out without turning

B By pulling and turning to and fro

C By pulling and turning in the cutting direction

D By pulling and turning against the cutting direction

 

5 Hand reamers can be distinguished from machine reamers because of their...

A helical tooth

B a longer tapered part

C bigger number of teeth

D unequal spacing (pitch)

 

6 What will happen to reamed hole, if worn out reamer is used?

A Over size

B Under size

C Over heating

D Reamer breaks

 

7 What precaution to be taken to get good surface finish using a reamer?

A Lubricate hole

B Lubricate the reamer

C Use coolant while reaming

D Run reamer in reverse direction

 

8 A hole is to be reamed on mild steel with a 10 mm reamer, What will be the diameter of the drill for drilling

the hole before reaming?

A 9.75 mm

B 9.80 mm

C 9.80 mm

D 10.20 mm


9 What is the name of tool shown in figure?


A Flat scarper

B Triangular scraper

C Bull nose scraper

D Half round scraper

 

10 Which tool is used for scraping small diameter holes?

A Flat scarper

B Triangular scraper

C Bull nose scraper

D Half round scraper