Upper deviation
Lower deviation
Zero deviation
None of the above
High speed steel
Low carbon steel
Stainless steel
Wood
Twist drill are made of high speed steel
Cotton
Plastic
Silk
Leather and Worn
Leather and Worn type of apron is used during welding.
Unawareness of danger
Negligence
Improper use of tools
Using gloves
At straight angle
In butt positions
Overlap position
At an angle
In Lap joint, plates are kept overlap position.