
Kindly answer the question in the box mentioned below:
1. What is the cutting speed for aluminium?
A 20 to 35 m/min
B 25 to 40 m/min
C 35 to 50 m/min
D 70 to 100 m/min
2. What is the cutting speed for steel?
A 20 - 30 m/min
B 40 - 50 m/min
C 30 - 40 m/min
D 70 - 100 m/min
3. How many types of threaded fastening available in ISO inch (unified) thread?
A One
B Two
C Four
D Three
4. What is the thread angle of British standard worth (BSW) thread?
A 60°
B 65°
C 55°
D 50°
5. Why do you make tapered pipe threads on iron pipe?
A It prevents rusting
B To form water tight joint
C It saws from bording materials
D It should not be taken out again
6. How many threads usually kept on first tap or taper tap?
A 6 to 8
B 8 to 10
C 8 to 12
D 10 to 12
7. How many threads usually chamfered in a intermediate tap?
A 3 or 4
B 2 or 3
C 1 or 3
D 2 or 5
8. Which tool is used to make marking lines on round bars or tubes?
A Try square
B Set square
C Box square
D Vernier caliper
9. Which instrument is used for measure, testing and marking out purposes with other surfaces?
A Angle plate
B Corner plate
C Surface plate
D Box square plate
10. Which material used to make surface plate and angle plate?
A Cast iron
B Mild steel
C Aluminium
D Stainless steel