Welding and Fire Safety Flashcards

Front

Why is a mushroom head on a chisel undesirable?

Back

It gives a large target to strike with the hammer.

Front

How many times can a standard 2’ thread turn when properly cut?

Back

2.5 times.

Front

Why is it necessary to ground electrical tools?

Back

Unless the boiler is filled with water.

Front

What fuels a Class A fire?

Back

Ordinary combustible materials such as wood, sawdust, paper, rags, etc.

Front

What is used to extinguish Class B fires?

Back

Smothering action is required.

Front

What fuels Class C fires?

Back

Electrical in motors, switches, appliances, etc.

Front

What should be done with the rivets on the hook of a steel tape?

Back

They should be kept tight to prevent the hook from changing position.

Front

What happens to the capacity of a pipe when its size is doubled?

Back

It increases by four times.

Front

What is the most commonly used steam trap on low pressure radiation?

Back

The F & T trap.

Front

Where can you find the ASME boiler and pressure vessel code related to welders?

Back

In section 4 (IX).