Workplace Safety & Technical Procedures TKA Bahasa Inggris SMK

Modal Expression	Regulatory Meaning	Industrial Context
Must / Shall	Mandatory statutory obligation; non-compliance is illegal/prohibited.	"All technicians shall wear arc-rated face shields within the high-voltage perimeter."
Must Not / Shall Not	Absolute prohibition under risk of severe injury or dismissal.	"Personnel must not bypass safety interlocks while the turbine is energized."
Should / Recommended	Industry best practice; advisory but not strictly penalized.	"Workbenches should be sanitized with isopropyl wipes after each shift."

Pernyataan	Benar	Salah
An MSDS contains standardized technical data regarding chemical toxicity, PPE requirements, and accidental spill cleanup.	Benar	Salah
The main objective of LOTO is to prevent unexpected machine re-energization during maintenance operations.	Benar	Salah
Any employee on the shop floor has the authority to cut off and remove another technician's personal LOTO padlock.	Benar	Salah
Zero-energy verification requires attempting to restart the machine to confirm that all stored energy is fully dissipated.	Benar	Salah

Soal 4 Pilihan Ganda sedang

5 Poin

Industrial Safety Data Sheet (SDS): Trichloroethylene Solvent (Degreasing Agent)

SAFETY DATA SHEET (SDS-CH-204)
PRODUCT: Trichloroethylene (Tech Grade 99.5%)
INTENDED APPLICATION: Industrial vapor degreasing of machined aviation components.

SECTION 2: HAZARD IDENTIFICATION
Signal Word: DANGER
Hazard Statements:
- H350: May cause cancer (Category 1B).
- H341: Suspected of causing genetic defects.
- H319: Causes serious eye irritation.
- H336: May cause drowsiness or dizziness through central nervous system depression.

SECTION 4: FIRST-AID MEASURES
4.1 Inhalation: Remove victim to fresh air immediately. If breathing is labored, administer oxygen through trained personnel. If not breathing, perform CPR immediately. Do NOT use mouth-to-mouth resuscitation; utilize a one-way pocket mask.
4.2 Dermal Contact: Flush skin with copious volumes of tepid water for at least 15 minutes while removing contaminated overalls and boots. Wash skin with non-abrasive antibacterial soap.
4.3 Eye Contact: Rinse cautiously with sterile saline or water for 20 minutes, holding eyelids retracted. Seek emergency ophthalmological care.

SECTION 8: EXPOSURE CONTROLS & PERSONAL PROTECTION
Occupational Exposure Limit: TWA 10 ppm (55 mg/m³), STEL 25 ppm.
Engineering Controls: Dedicated explosion-proof local exhaust ventilation maintaining negative draft.
Personal Protective Equipment (PPE):
- Respiratory: Full-face positive-pressure air-supplied respirator when concentrations exceed 10 ppm.
- Dermal: Viton or heavy-duty fluorinated polymer gloves. Standard nitrile or latex gloves are strictly PROHIBITED due to rapid chemical permeation (breakthrough time < 3 minutes).
- Body: Impervious chemical splash apron and electrostatic-dissipative safety boots.

Sumber: Occupational Safety and Health Standards (OSHA) Industrial Chemical Directive

According to Section 8 of SDS-CH-204, why are standard nitrile or latex gloves strictly prohibited when handling Trichloroethylene?

A Because they are too expensive to purchase in commercial bulk quantities. B Because Trichloroethylene rapidly permeates through them in less than 3 minutes. C Because nitrile reacts explosively when contacting cold water. D Because latex gloves reflect too much ambient workshop light into the operator's eyes.

Soal 5 Pilihan Ganda sedang

5 Poin

Industrial Safety Data Sheet (SDS): Trichloroethylene Solvent (Degreasing Agent)

SAFETY DATA SHEET (SDS-CH-204)
PRODUCT: Trichloroethylene (Tech Grade 99.5%)
INTENDED APPLICATION: Industrial vapor degreasing of machined aviation components.

SECTION 2: HAZARD IDENTIFICATION
Signal Word: DANGER
Hazard Statements:
- H350: May cause cancer (Category 1B).
- H341: Suspected of causing genetic defects.
- H319: Causes serious eye irritation.
- H336: May cause drowsiness or dizziness through central nervous system depression.

SECTION 4: FIRST-AID MEASURES
4.1 Inhalation: Remove victim to fresh air immediately. If breathing is labored, administer oxygen through trained personnel. If not breathing, perform CPR immediately. Do NOT use mouth-to-mouth resuscitation; utilize a one-way pocket mask.
4.2 Dermal Contact: Flush skin with copious volumes of tepid water for at least 15 minutes while removing contaminated overalls and boots. Wash skin with non-abrasive antibacterial soap.
4.3 Eye Contact: Rinse cautiously with sterile saline or water for 20 minutes, holding eyelids retracted. Seek emergency ophthalmological care.

SECTION 8: EXPOSURE CONTROLS & PERSONAL PROTECTION
Occupational Exposure Limit: TWA 10 ppm (55 mg/m³), STEL 25 ppm.
Engineering Controls: Dedicated explosion-proof local exhaust ventilation maintaining negative draft.
Personal Protective Equipment (PPE):
- Respiratory: Full-face positive-pressure air-supplied respirator when concentrations exceed 10 ppm.
- Dermal: Viton or heavy-duty fluorinated polymer gloves. Standard nitrile or latex gloves are strictly PROHIBITED due to rapid chemical permeation (breakthrough time < 3 minutes).
- Body: Impervious chemical splash apron and electrostatic-dissipative safety boots.

Sumber: Occupational Safety and Health Standards (OSHA) Industrial Chemical Directive

What specific first-aid restriction is mandated in Section 4.1 if a worker stops breathing after inhaling Trichloroethylene vapors?

A The victim must be forced to drink two liters of warm saltwater. B Rescuers must not perform mouth-to-mouth resuscitation directly; a one-way pocket mask must be used. C The victim must be left inside the vapor zone until an ambulance arrives. D Cardiopulmonary resuscitation (CPR) is entirely forbidden under all circumstances.

Soal 6 Benar / Salah sedang

6 Poin

Industrial Safety Data Sheet (SDS): Trichloroethylene Solvent (Degreasing Agent)

SAFETY DATA SHEET (SDS-CH-204)
PRODUCT: Trichloroethylene (Tech Grade 99.5%)
INTENDED APPLICATION: Industrial vapor degreasing of machined aviation components.

SECTION 2: HAZARD IDENTIFICATION
Signal Word: DANGER
Hazard Statements:
- H350: May cause cancer (Category 1B).
- H341: Suspected of causing genetic defects.
- H319: Causes serious eye irritation.
- H336: May cause drowsiness or dizziness through central nervous system depression.

SECTION 4: FIRST-AID MEASURES
4.1 Inhalation: Remove victim to fresh air immediately. If breathing is labored, administer oxygen through trained personnel. If not breathing, perform CPR immediately. Do NOT use mouth-to-mouth resuscitation; utilize a one-way pocket mask.
4.2 Dermal Contact: Flush skin with copious volumes of tepid water for at least 15 minutes while removing contaminated overalls and boots. Wash skin with non-abrasive antibacterial soap.
4.3 Eye Contact: Rinse cautiously with sterile saline or water for 20 minutes, holding eyelids retracted. Seek emergency ophthalmological care.

SECTION 8: EXPOSURE CONTROLS & PERSONAL PROTECTION
Occupational Exposure Limit: TWA 10 ppm (55 mg/m³), STEL 25 ppm.
Engineering Controls: Dedicated explosion-proof local exhaust ventilation maintaining negative draft.
Personal Protective Equipment (PPE):
- Respiratory: Full-face positive-pressure air-supplied respirator when concentrations exceed 10 ppm.
- Dermal: Viton or heavy-duty fluorinated polymer gloves. Standard nitrile or latex gloves are strictly PROHIBITED due to rapid chemical permeation (breakthrough time < 3 minutes).
- Body: Impervious chemical splash apron and electrostatic-dissipative safety boots.

Sumber: Occupational Safety and Health Standards (OSHA) Industrial Chemical Directive

Based on SDS-CH-204 in Passage 1, evaluate whether each safety protocol statement is Accurate (Benar) or Inaccurate (Salah).

Tentukan apakah setiap pernyataan di bawah ini Benar atau Salah!

Pernyataan	Benar	Salah
Trichloroethylene is classified under Hazard Statement H350 as a substance that may cause cancer.	Benar	Salah
Dermal contamination requires flushing skin with water for merely 30 seconds before returning to work.	Benar	Salah
The permissible 8-hour Time-Weighted Average (TWA) occupational exposure limit is strictly 10 ppm.	Benar	Salah
Technicians handling this solvent must wear Viton or heavy-duty fluorinated polymer gloves.	Benar	Salah

Soal 7 Pilihan Ganda Kompleks sedang

5 Poin

Industrial Safety Data Sheet (SDS): Trichloroethylene Solvent (Degreasing Agent)

SAFETY DATA SHEET (SDS-CH-204)
PRODUCT: Trichloroethylene (Tech Grade 99.5%)
INTENDED APPLICATION: Industrial vapor degreasing of machined aviation components.

SECTION 2: HAZARD IDENTIFICATION
Signal Word: DANGER
Hazard Statements:
- H350: May cause cancer (Category 1B).
- H341: Suspected of causing genetic defects.
- H319: Causes serious eye irritation.
- H336: May cause drowsiness or dizziness through central nervous system depression.

SECTION 4: FIRST-AID MEASURES
4.1 Inhalation: Remove victim to fresh air immediately. If breathing is labored, administer oxygen through trained personnel. If not breathing, perform CPR immediately. Do NOT use mouth-to-mouth resuscitation; utilize a one-way pocket mask.
4.2 Dermal Contact: Flush skin with copious volumes of tepid water for at least 15 minutes while removing contaminated overalls and boots. Wash skin with non-abrasive antibacterial soap.
4.3 Eye Contact: Rinse cautiously with sterile saline or water for 20 minutes, holding eyelids retracted. Seek emergency ophthalmological care.

SECTION 8: EXPOSURE CONTROLS & PERSONAL PROTECTION
Occupational Exposure Limit: TWA 10 ppm (55 mg/m³), STEL 25 ppm.
Engineering Controls: Dedicated explosion-proof local exhaust ventilation maintaining negative draft.
Personal Protective Equipment (PPE):
- Respiratory: Full-face positive-pressure air-supplied respirator when concentrations exceed 10 ppm.
- Dermal: Viton or heavy-duty fluorinated polymer gloves. Standard nitrile or latex gloves are strictly PROHIBITED due to rapid chemical permeation (breakthrough time < 3 minutes).
- Body: Impervious chemical splash apron and electrostatic-dissipative safety boots.

Sumber: Occupational Safety and Health Standards (OSHA) Industrial Chemical Directive

Which two acute physical symptoms are listed under Section 2 as immediate hazards of Trichloroethylene exposure? (Choose two correct answers)

Centang semua pilihan yang kamu anggap benar! A. Serious eye irritation upon vapor or liquid exposure. B. Drowsiness or dizziness resulting from central nervous system depression. C. Immediate frostbite on skin tissues. D. Permanent loss of hearing within five seconds.

Soal 8 Pilihan Ganda sedang

5 Poin

Standard Operating Procedure: Lock-Out / Tag-Out (LOTO) for 5-Axis CNC Milling Center

PROCEDURE ID: SOP-ENG-088
TITLE: Hazardous Energy Control: Lock-Out / Tag-Out (LOTO) Procedure for Okuma 5-Axis CNC Milling Center
SCOPE: Mandatory for all mechanical maintenance, spindle replacement, and hydraulic manifold servicing.

1.0 NOTIFICATION & SHUTDOWN
1.1 Notify all surrounding shopfloor machinists and shift supervisors that CNC Center #4 will be taken offline for unscheduled servicing.
1.2 Return the tool changer carousel to its home park position. Terminate running CNC cycles via the operator console control panel.
1.3 Depress the emergency stop (E-stop) mushroom button and turn the main console power key to OFF.

2.0 ENERGY ISOLATION & LOCKOUT
2.1 Electrical Disconnect: Move the primary high-voltage wall-mounted circuit breaker handle to the OFF position. Attach a standardized red personal padlock and an authorized OSHA danger tag with the lead technician's name and contact number.
2.2 Pneumatic De-energization: Close the pneumatic main shut-off valve supplying 6.0 bar air pressure to the spindle clamp. Open the reservoir bleeder petcock to exhaust residual pressurized air until the inline pressure gauge reads exactly 0 bar.
2.3 Hydraulic Dissipation: Disengage the hydraulic pump motor circuit. Engage the manual pressure-release valve on the hydraulic accumulator. Verify zero hydraulic backpressure on manifold gauge H-1.

3.0 ZERO-ENERGY VERIFICATION (TESTING)
3.1 Ensure no personnel are within the machine working envelope or near the chip conveyor.
3.2 Attempt to restart the CNC center by toggling the control console power switch and pressing the spindle jog button.
3.3 Verify that the display screens remain completely unlit and zero mechanical movement occurs.
3.4 Return all control switches to the OFF position before beginning physical tool disassembly.

Sumber: Advanced Manufacturing & Mechanical Engineering Safety Protocol

In SOP-ENG-088, what critical step must be executed in Step 2.2 after closing the pneumatic main shut-off valve?

A Increase the compressor air pressure from 6.0 bar to 12.0 bar. B Open the reservoir bleeder petcock to exhaust residual air until the gauge reads 0 bar. C Immediately disconnect the spindle tool holder while under high pressure. D Weld the pneumatic airline shut to prevent accidental airflow.

Soal 9 Pilihan Ganda sedang

5 Poin

Standard Operating Procedure: Lock-Out / Tag-Out (LOTO) for 5-Axis CNC Milling Center

PROCEDURE ID: SOP-ENG-088
TITLE: Hazardous Energy Control: Lock-Out / Tag-Out (LOTO) Procedure for Okuma 5-Axis CNC Milling Center
SCOPE: Mandatory for all mechanical maintenance, spindle replacement, and hydraulic manifold servicing.

1.0 NOTIFICATION & SHUTDOWN
1.1 Notify all surrounding shopfloor machinists and shift supervisors that CNC Center #4 will be taken offline for unscheduled servicing.
1.2 Return the tool changer carousel to its home park position. Terminate running CNC cycles via the operator console control panel.
1.3 Depress the emergency stop (E-stop) mushroom button and turn the main console power key to OFF.

2.0 ENERGY ISOLATION & LOCKOUT
2.1 Electrical Disconnect: Move the primary high-voltage wall-mounted circuit breaker handle to the OFF position. Attach a standardized red personal padlock and an authorized OSHA danger tag with the lead technician's name and contact number.
2.2 Pneumatic De-energization: Close the pneumatic main shut-off valve supplying 6.0 bar air pressure to the spindle clamp. Open the reservoir bleeder petcock to exhaust residual pressurized air until the inline pressure gauge reads exactly 0 bar.
2.3 Hydraulic Dissipation: Disengage the hydraulic pump motor circuit. Engage the manual pressure-release valve on the hydraulic accumulator. Verify zero hydraulic backpressure on manifold gauge H-1.

3.0 ZERO-ENERGY VERIFICATION (TESTING)
3.1 Ensure no personnel are within the machine working envelope or near the chip conveyor.
3.2 Attempt to restart the CNC center by toggling the control console power switch and pressing the spindle jog button.
3.3 Verify that the display screens remain completely unlit and zero mechanical movement occurs.
3.4 Return all control switches to the OFF position before beginning physical tool disassembly.

Sumber: Advanced Manufacturing & Mechanical Engineering Safety Protocol

What is the purpose of the zero-energy verification testing outlined in Section 3.0 of SOP-ENG-088?

A To check whether the machine can produce parts faster without electrical power. B To empirically verify that all hazardous energy is completely isolated and cannot cycle unexpectedly. C To warm up the hydraulic oil prior to draining the reservoir manifold. D To test the loudness of the machine's alarm horn in the workshop.

Soal 10 Benar / Salah sedang

6 Poin

Standard Operating Procedure: Lock-Out / Tag-Out (LOTO) for 5-Axis CNC Milling Center

PROCEDURE ID: SOP-ENG-088
TITLE: Hazardous Energy Control: Lock-Out / Tag-Out (LOTO) Procedure for Okuma 5-Axis CNC Milling Center
SCOPE: Mandatory for all mechanical maintenance, spindle replacement, and hydraulic manifold servicing.

1.0 NOTIFICATION & SHUTDOWN
1.1 Notify all surrounding shopfloor machinists and shift supervisors that CNC Center #4 will be taken offline for unscheduled servicing.
1.2 Return the tool changer carousel to its home park position. Terminate running CNC cycles via the operator console control panel.
1.3 Depress the emergency stop (E-stop) mushroom button and turn the main console power key to OFF.

2.0 ENERGY ISOLATION & LOCKOUT
2.1 Electrical Disconnect: Move the primary high-voltage wall-mounted circuit breaker handle to the OFF position. Attach a standardized red personal padlock and an authorized OSHA danger tag with the lead technician's name and contact number.
2.2 Pneumatic De-energization: Close the pneumatic main shut-off valve supplying 6.0 bar air pressure to the spindle clamp. Open the reservoir bleeder petcock to exhaust residual pressurized air until the inline pressure gauge reads exactly 0 bar.
2.3 Hydraulic Dissipation: Disengage the hydraulic pump motor circuit. Engage the manual pressure-release valve on the hydraulic accumulator. Verify zero hydraulic backpressure on manifold gauge H-1.

3.0 ZERO-ENERGY VERIFICATION (TESTING)
3.1 Ensure no personnel are within the machine working envelope or near the chip conveyor.
3.2 Attempt to restart the CNC center by toggling the control console power switch and pressing the spindle jog button.
3.3 Verify that the display screens remain completely unlit and zero mechanical movement occurs.
3.4 Return all control switches to the OFF position before beginning physical tool disassembly.

Sumber: Advanced Manufacturing & Mechanical Engineering Safety Protocol

Evaluate whether the following procedural actions during LOTO in Passage 2 are Correct (Benar) or Incorrect (Salah).

Tentukan apakah setiap pernyataan di bawah ini Benar atau Salah!

Pernyataan	Benar	Salah
Surrounding shopfloor machinists and shift supervisors must be notified before initiating machine shutdown.	Benar	Salah
Technicians may secure the main circuit breaker using generic masking tape instead of a padlock.	Benar	Salah
Stored hydraulic backpressure in accumulator manifold H-1 must be released prior to servicing.	Benar	Salah
Control console switches must be returned to the OFF position following zero-energy testing.	Benar	Salah

Soal 11 Pilihan Ganda Kompleks sedang

5 Poin

Emergency Action Plan: High-Voltage Lithium-Ion Battery Thermal Runaway in EV Workshop

WORKSHOP SAFETY DIRECTIVE: E-MOBILITY SERVICE BAY
DOCUMENT: EAP-EV-04

1.0 RECOGNITION OF THERMAL RUNAWAY
1.1 Thermal runaway in high-voltage (400V–800V) lithium-ion traction battery packs is characterized by: rapid temperature escalation (>80°C), hissing or whistling sounds from pressure relief valves, dense white or gray vapor clouds (hydrogen fluoride and volatile organic compounds), and sweet acrid odors.
1.2 Immediate Action: Any technician detecting these warning signs must immediately strike the nearest workshop master fire alarm and shout: 'Code Red Battery Evacuation!'

2.0 EVACUATION & PERIMETER ISOLATION
2.1 Evacuate all bay personnel to the outdoor muster point upwind of the facility (minimum standoff distance: 50 meters).
2.2 Shut down workshop HVAC ventilation systems immediately via the central emergency cut-off to prevent toxic gas circulation into adjacent offices.
2.3 Cordon off the workshop perimeter with high-visibility reflective tape; no personnel without self-contained breathing apparatus (SCBA) shall re-enter.

3.0 SUPPRESSION TACTICS & LIMITATIONS
3.1 DO NOT attempt to extinguish an active thermal runaway battery using standard ABC dry chemical or CO2 fire extinguishers. These agents cannot penetrate battery module casings or halt internal exothermic cascade reactions.
3.2 The designated certified EV emergency team must deploy high-volume water deluge hoses (minimum 500 liters/minute) directed continuously at the battery casing to achieve structural cooling.
3.3 Once primary flames are suppressed, the vehicle must be submerged in a specialized mobile water containment immersion container for a minimum of 48 hours to prevent rekindling.

Sumber: Electric Vehicle Service Technology & Battery Safety Association Standards

Which two visual or acoustic indicators characterize the onset of thermal runaway in high-voltage EV batteries according to EAP-EV-04? (Choose two correct answers)

Centang semua pilihan yang kamu anggap benar! A. Hissing or whistling sounds emitted from battery pressure relief valves. B. Dense white or gray vapor clouds accompanied by sweet acrid odors. C. Clear odorless water dripping from the vehicle tailpipe. D. The vehicle radio spontaneously switching to AM frequencies.

Soal 12 Pilihan Ganda sedang

5 Poin

Emergency Action Plan: High-Voltage Lithium-Ion Battery Thermal Runaway in EV Workshop

WORKSHOP SAFETY DIRECTIVE: E-MOBILITY SERVICE BAY
DOCUMENT: EAP-EV-04

1.0 RECOGNITION OF THERMAL RUNAWAY
1.1 Thermal runaway in high-voltage (400V–800V) lithium-ion traction battery packs is characterized by: rapid temperature escalation (>80°C), hissing or whistling sounds from pressure relief valves, dense white or gray vapor clouds (hydrogen fluoride and volatile organic compounds), and sweet acrid odors.
1.2 Immediate Action: Any technician detecting these warning signs must immediately strike the nearest workshop master fire alarm and shout: 'Code Red Battery Evacuation!'

2.0 EVACUATION & PERIMETER ISOLATION
2.1 Evacuate all bay personnel to the outdoor muster point upwind of the facility (minimum standoff distance: 50 meters).
2.2 Shut down workshop HVAC ventilation systems immediately via the central emergency cut-off to prevent toxic gas circulation into adjacent offices.
2.3 Cordon off the workshop perimeter with high-visibility reflective tape; no personnel without self-contained breathing apparatus (SCBA) shall re-enter.

3.0 SUPPRESSION TACTICS & LIMITATIONS
3.1 DO NOT attempt to extinguish an active thermal runaway battery using standard ABC dry chemical or CO2 fire extinguishers. These agents cannot penetrate battery module casings or halt internal exothermic cascade reactions.
3.2 The designated certified EV emergency team must deploy high-volume water deluge hoses (minimum 500 liters/minute) directed continuously at the battery casing to achieve structural cooling.
3.3 Once primary flames are suppressed, the vehicle must be submerged in a specialized mobile water containment immersion container for a minimum of 48 hours to prevent rekindling.

Sumber: Electric Vehicle Service Technology & Battery Safety Association Standards

According to Section 3.1 of EAP-EV-04, why must technicians NOT use standard ABC dry chemical or CO2 extinguishers on an active thermal runaway battery?

A Because dry chemical powder will discolor the vehicle paint finish. B Because these agents cannot penetrate the battery casing or arrest internal exothermic cascade reactions. C Because CO2 extinguishers accelerate lithium crystallization into solid blocks. D Because fire extinguishers are reserved exclusively for office paper fires.

Soal 13 Pilihan Ganda sedang

5 Poin

Emergency Action Plan: High-Voltage Lithium-Ion Battery Thermal Runaway in EV Workshop

WORKSHOP SAFETY DIRECTIVE: E-MOBILITY SERVICE BAY
DOCUMENT: EAP-EV-04

1.0 RECOGNITION OF THERMAL RUNAWAY
1.1 Thermal runaway in high-voltage (400V–800V) lithium-ion traction battery packs is characterized by: rapid temperature escalation (>80°C), hissing or whistling sounds from pressure relief valves, dense white or gray vapor clouds (hydrogen fluoride and volatile organic compounds), and sweet acrid odors.
1.2 Immediate Action: Any technician detecting these warning signs must immediately strike the nearest workshop master fire alarm and shout: 'Code Red Battery Evacuation!'

2.0 EVACUATION & PERIMETER ISOLATION
2.1 Evacuate all bay personnel to the outdoor muster point upwind of the facility (minimum standoff distance: 50 meters).
2.2 Shut down workshop HVAC ventilation systems immediately via the central emergency cut-off to prevent toxic gas circulation into adjacent offices.
2.3 Cordon off the workshop perimeter with high-visibility reflective tape; no personnel without self-contained breathing apparatus (SCBA) shall re-enter.

3.0 SUPPRESSION TACTICS & LIMITATIONS
3.1 DO NOT attempt to extinguish an active thermal runaway battery using standard ABC dry chemical or CO2 fire extinguishers. These agents cannot penetrate battery module casings or halt internal exothermic cascade reactions.
3.2 The designated certified EV emergency team must deploy high-volume water deluge hoses (minimum 500 liters/minute) directed continuously at the battery casing to achieve structural cooling.
3.3 Once primary flames are suppressed, the vehicle must be submerged in a specialized mobile water containment immersion container for a minimum of 48 hours to prevent rekindling.

Sumber: Electric Vehicle Service Technology & Battery Safety Association Standards

Why does Section 3.3 require submerging the affected electric vehicle in a water containment container for at least 48 hours following fire suppression?

A To dissolve the steel chassis so it can be recycled immediately. B To wash off chemical foam residue before returning the vehicle to the customer. C To achieve continuous core cooling and prevent delayed exothermic reignition or rekindling. D To test whether the door seals remain waterproof after fire exposure.

Workplace Safety, Technical SOPs, and Hazardous Protocols (K3LH) – Materi & Latihan TKA Bahasa Inggris SMK/MAK

Materi & Pembahasan Konsep

1. Core Pillars of Industrial Safety Documentation

Signal Words

MSDS / SDS Sections

Lock-Out / Tag-Out (LOTO)

Mandatory PPE Protocol

Deontic Modality in Industrial Safety Directives

Latihan Interaktif (18 Soal)

Cek Pemahaman

Latihan TKA

Industrial Safety Data Sheet (SDS): Trichloroethylene Solvent (Degreasing Agent)

Industrial Safety Data Sheet (SDS): Trichloroethylene Solvent (Degreasing Agent)

Industrial Safety Data Sheet (SDS): Trichloroethylene Solvent (Degreasing Agent)

Industrial Safety Data Sheet (SDS): Trichloroethylene Solvent (Degreasing Agent)

Standard Operating Procedure: Lock-Out / Tag-Out (LOTO) for 5-Axis CNC Milling Center

Standard Operating Procedure: Lock-Out / Tag-Out (LOTO) for 5-Axis CNC Milling Center

Standard Operating Procedure: Lock-Out / Tag-Out (LOTO) for 5-Axis CNC Milling Center

Emergency Action Plan: High-Voltage Lithium-Ion Battery Thermal Runaway in EV Workshop

Emergency Action Plan: High-Voltage Lithium-Ion Battery Thermal Runaway in EV Workshop

Emergency Action Plan: High-Voltage Lithium-Ion Battery Thermal Runaway in EV Workshop

Tantangan Penalaran

Standard Operating Procedure: Lock-Out / Tag-Out (LOTO) for 5-Axis CNC Milling Center

Industrial Safety Data Sheet (SDS): Trichloroethylene Solvent (Degreasing Agent)

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Nomor Soal

Pernyataan	Benar	Salah
Turning on workshop ventilation to full blast to blow battery fire smoke into administrative office hallways.	Benar	Salah
Attempting to toggle console start buttons after applying padlocks to confirm zero operational energy.	Benar	Salah
Decanting Trichloroethylene into an unlabelled plastic water bottle to make it easier to carry across the shop.	Benar	Salah
Mustering personnel at an outdoor assembly point at least 50 meters upwind during a chemical or battery incident.	Benar	Salah