SAChE Module hazards and risk AJJ

which of the following contributed to williams olefin incident 1. acid attack 2. procedural errors 3. corrosion 4. cracked tubing

2. procedural errors

acetone has LFL 2.6 % and UFL 12.8%. if mixed with air, which concentration will ignite? 1. 1.3% 2. 2.5% 3. 2.8% 4. 13% 5. none

3. 2.8%

___ is the lowest spark capable of igniting a flammable cloud of optimum concentration in given number of lab trials 1. UFL 2. LOC 3. MIE 4. LFL

3. MIE (minimum ignition energy)

main cause of fatality in asphxiation case study was: 1. large plastic sheet 2. unavailability of response personnel 3. O2 deficiency 4. black light

3. O2 deficiency

in the list below, which has largest flammable range: 1. ethane 2. gasoline 3. ethylene oxide 4. benzene

3. ethylene oxide

when pumping low conductivity liquid in pipe, faster flow, current will: 1. decrease 2. dissipate 3. increase 4. unchanged

3. increase

in herring bros farms incident, which pair of physical parameters combined to cause event: 1. pressure and flow 2. temp and static electricity 3. flow and static electricity 4. temp and pressure

4. T and P

explosion in BP texas city was casued by which physical parameter: 1. temp 2. high flow 3. static electricity 4. level

4. level

which foundational block does asset integrity reside in 1. understand hazards and risk 2. commit to process safety 3. learn from experience 4. manage risk

4. manage risk

the three mile island incident began with the failure of which equipment: 1. reactor core 2. heat exchanger 3. fuel rod 4. pump

4. pump (for cooling water)

T/F: Vacuum is as likely to cause damage as an overpressure condition

True

T/F : while there were dozens of injuries, there were no fatalities as a result of the 1919 incident in boston masachusetts

false

T/F the only way to reduce process safety risk is by preventing all incidents

false

T/F: 3 mile island resulted in radiation exposure fatalities

false

T/F: in the formosa plastics incident, the automated controls failed to operate properly bc they were damaged

false

T/F: steel is impervious to fire effects

false

T/F; for any given subject, there is only one standard for process safety

false bitch

in the csb video regarding natural gas, which hazard was associated: 1. toxicity 2. reactivity 3. asphyxiation 4. flammabaility

flammability

the assessment of risk includes (all that apply) 1. country where event occurs 2. consequence 3. hazard 4. frequency

hazard, consequence, frequency

hazard

inherent risk

knowledge and conformance to consensus standards are intended to help a company (all that apply); 1. minmize legal liability 2. consistently implement process safety practices 3. operate and maintain safe facility 4. operate lowest cost possible

1, 2, 3

which is used to evaluate flammability characteristics (all that apply) 1. LOC 2. LFL 3. TLV 4. MIE

1, 2, 4

process safety management is most concerned with asphyxiation through elements of (all that apply) 1. contractor management 2. safe work practices 3. asset integrity 4. auditing

1. contractor management 2. safe work practices 3. asset integrity

which of the following contributed to tesoro refinery incident? 1. corrosion 2. operator fatigue 3. blockage of flow 4. external fire

1. corrosion

which is a hazard 1. high pressure chlorine gas cyl 2. interior of process vessel 3. radiation heat level of 10 kW/m2 4. 10 psi overpressure from deflagration

1. high pressure chlorine gas cyl 2. interior of process vessel

which is a consequence (all that apply) 1. overpressure from propane cloud explosion 2. corroding pipe, delivering propane from storage 3. propane concentration above LFL at ground level 300m downwind from storage 4. excess chlorine pressure in a trapped pipe

1. overpressure from propane cloud explosion 3. propane concentration above LFL at ground level 300m downwind from storage

asphyxiants with no other health effects: 1. simple asphyx 2. minor asphyx 3. toxic asphyx 4. non-emergency asphyx

1. simple

definition: max airborne concentration below which all individuals could be exposed to ... without experiencing life threatening health effects: 1. LOC 2. ERPG 3 3. LFL 4. TLV

ERPG-3

1974 flixborough is prime example of:

MOC

static electricity can be a potential ignition source when dealing with ignitable : 1. gases 2. liquid 3. vapor 4. dusts

all

uncontrolled liquid levels can lead to: 1. spilled corrosives 2. spilled flammables 3. overflows of toxic and hazardous 4. all

all

what are dangers of excessive pressure (all that apply) 1. fires 2. exposure of personnel, equipment, and structures to damaging overpressures 3. exposure to hazardous contents 4. loss of power and control automation

all

which type of flow situation can have adverse consequences 1. no flow 2. high flow 3. low flow

all

in some circumstances, the following gases are detectable by odorants added (all that apply) 1. argon 2. propane 3. nitrogen 4. methane

argon, nitrogen, and methane

in the imperial sugar case study, material ignited being moved by: 1. conveyer belt 2. pneumatic ducting 3. pipe 4. hose

belt

Risk is composed of: consequence consequence and freq odds of winning frequency

consequence and freq

what is expected damage from overpressure of 1 psig

partial demolition of houses

MAWP is abbrev to define how equipment handles?

pressure

___ is the combo of what can go wrong, how bad it can be, and how often it might happen 1. hazard 2. hazop 3. consequence 4. risk assessment

risk assessment

thermal radiation flux of 5 kW/m2 is a consequence associated with what physical parameter 1. pressure 2. flow 3. static elec 4. temp

temp

the fired heater case study showed failings of which PSM elements (apply) 1. measurement and metrics 2. training 3. contractor mangement 4. MOC

training and MOC

T/F : the use of rubber tired vehicles can generate static electricity

true

T/F: cleaning and decontamination of process equip can pose reactivity hazard

true

T/F: in the pipe rack flash fire incident involving the welder, there was no identified equipment failure

true

which hazard does not contribute directly to overall process safety risk 1. process hazards 2. weather hazard 3. energy 4. material

weather