POM: Permit System

PTW is a special ______________ used before certain types of work that involved with hazardous in workplace can be done.

• document

• tools

• equipment

• PPE

All activities below was consider as non-routine activities at petrochemical process plant EXCEPT.

• Hot-work

• Cold-work

• Electrical work

• Confine space entry

• Plant operation

Base on picture below, select all activities in workplace required PTW approval before start the work.

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Select all related function of PTW used in process plant industry.

• Provide guidance in confirming completion of the work activities.

• Provide guidance in confirming all hazard s involve during work activities

• Provide guidance in confirming precaution to be taken during execution of the work.

• Provide guidance in confirming coordination of all activities to provide a safe working environment.

All task below is related to process technician responsibility, EXCEPT.

• Inspects area and ensures housekeeping.

• Isolates all equipment before do maintenance.

• Apply LOTO

• Fill out PTW

• Perform gas test

From picture below, which picture show the fire watcher was assign during execution of non-routine work at workplace.

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When hot work permit required in work place?

• Work with equipment produce a source of ignition.

• Work area have flammable material that can't be removed

• The work area atmosphere have possibility of flammable gas presence.

• All answer correct

All tips below is a good practices before performing hot work, EXCEPT.

• Make sure that all equipment is in good operating order before work starts.

• Move all flammable and combustible materials away from the work area.

• Remove any spilled grease, oil, or other combustible liquid.

• Make sure that the first-aid boxes are available and easily accessible.

• If possible, schedule hot work during plant operation periods.

Following statement about LOTO was TRUE, EXCEPT;

i. Prevent from unexpected start-up of machine during maintenance.

ii. Prevent from unexpected release of hazardous energy maintenance.

iii. PTW application submit after LOTO isolation work.

iv. De-isolation work was perform after 'hand-back after work' complete.

v. Physical isolation was perform before electrical isolation activity.

• i and ii

• iii and ii

• iii and v

• i and v

Isolation of power supply at substation can be perform after application of PTW.

• True

• False