SHEET METAL - Practice Mode

1) Which cutting fluid used for drilling in cast iron?

Dry air jet Soluble oil Mineral oil Vegetable oil

Correct Answer: Dry air jet

2) Select the spindle speed (rpm) for H.S.S drill diameter 24 mm and cutting speed (V) = 30 m/min to drill mild steel.

275 rpm 300 rpm 400 rpm 450 rpm

Correct Answer: 400 rpm

3) Which one is used to bring the plates closely together after inserting the rivet in the hole?

Drift Dolly Rivet set Caulking tool

Correct Answer: Rivet set

Explanation:

FDD (Floppy Disk Drive) connectors typically have 34 pins. This includes a 34-pin edge connector that connects to the floppy drive. The pins are divided into two rows, with 17 pins in each row. The pins are used to transfer data and power between the computer and the floppy drive.

4) What is the use of bent snips?

Groove cut Zigzag cut Straight cut Circular cut

Correct Answer: Circular cut

5) Name the zinc coated iron?

Black iron Tinned iron Stainless steel Galvanised iron

Correct Answer: Galvanised iron

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