Question

1.) Concerning confined space rescue, a mechanical device shall be available to retrieve personnel from vertical type permit spaces more than __________ deep.

1. 3 feet
2. 5 feet
3. 7 feet
4. 9 feet
5. 11 feet

2.) In assessing air quality in a confined space, the correct testing order is ____________.

1. Test for combustibles, test for O₂, test for toxins
2. Test for O₂, test for combustibles, test for toxins
3. Test for toxins, test for combustibles, test for O₂
4. Test for O₂, test for toxins, test for combustibles
5. Test for toxins, test for O₂, test for combustibles

3.) A confined space that contains any hazard or hazardous atmosphere capable of causing death or serious harm would best be termed a:

1. Permit-required confined space
2. Non-permit-required confined space
3. Hot-work permit-required confined space
4. Non-hot-work permit required confined space
5. None of the above

4.) Hot work permits are required any time

1. Temperatures exceed 100^o F at the job site
2. Work operations are taking place at elevated temperatures
3. Work such cutting, burning or welding could provide an ignition source
4. Flammable gas is present at levels above a 25% concentration
5. None of the above

Answer 1

Solution)

1.) Concerning confined space rescue, a mechanical device shall be available to retrieve personnel from vertical type permit spaces more than -------------- deep

Answer B 5 Feet

As it means that a person assessing the confined space must be rescued in case of emergency which must be a machine which is more than 5 feet deep thus the person can be easily evacuated.

2.) In assessing air quality in a confined space, the correct testing order is ------------

Answer B Test for O2 , test or combustible gases , test for toxins

In assessing the air quality for a confined space the major key factor is oxygen which is readily cheked firstmost and then the combustible gase like methane which evloves due to decomposition and then the test for toxins are done.

3.) A confined space that contains any hazard or hazardous atmosphere capable of causing death or serious harm would best be termed a:

Answer B Non permit required confined space

As the confined space contains the hazardous gases which proves to be fatal for a person to inhale and seriously damages their immune system thus this type of system must not granted a permit.

4.) Hot work permits are required any time

Answer C Work such as cutting, burning or welding could provide an ignition source

Hot work permits are required any type of activity including high temperartures or use of arc welding which will generate high temperature such as works including cutting, burning or welding.