Millwright Level 4 final prep, (Question Bank)
806 Multiple Choice Questions and Correct
Answers. (Actual Exam Questions Included)
Updated 2024/2025.
Fire extinguishers involving electrical equipment have the letter?
A. C
B. D
C. A
D. B
A. C
A class B fire extinguisher is for?
A. wood and paper fires
B. electrical fires
C. magnesium fires
D. oil and gas fires
D. oil and gas fires
A material safety data sheet must be reviewed
A. once a year
B. once every three years or sooner
C. at the discretion of the plant safety supervisor
D.every five years
B. once every three years or sooner
how many workerss can perform the initial lockout in a key box system?
A. one
B. three
C. four
D. two
D. two
A class "ABC" fire extingusher would contain?
A. co2
B. water
C. dry chemical
D. foam
C. dry chemical
,A class "B" fire extinguisher is identified by a?
A. green circle
B. yellow star
C. red square
D. green square
C. red square
An identifying feature of a CO2 fire extinguisher is?
A. it is silver in colour
B. it has a large nozzle on the end of its hose
C. it has a yellow star stamped on its side
D. it has two pressure gauges
B. it has a large nozzle on the end of its hose
Fire protection sprinklers and smoke detectors must be shielded if you are cutting within what
distance?
A. 1.0M
B. 1.5M
C. 2.0M
D. .5M
A. 1.0M
what is the maximum allowable air pressure to blow off your coveralls?
A. 1 psi
B. 5 psi
C. 10 psi
D. 20 psi
C. 10 psi
If a positive sealing device is used to seal the key box, what information mist be included on the check
list?
A. the date on the seal
B. the serial number on the seal
C. the number of workers on the equipment
D.the number of individual lockouts
B. the serial number on the seal
when is a lock required on plugged in equipment?
A. if the electrical cord is damaged or frayed
B. if the control of the plug cannot be maintained
C. when the machine is plugged into an extension cord
D. none of the above
B. if the control of the plug cannot be maintained.
,A yellow star for magnesium fires has the letter?
A. C
B. D
C. A
D. B
B. D
Iron ore, coal and ____________ are three raw materials used in the manufacturing of iron.
A. limestone
B. tungsten
C. silicon
D. phosphorus
A. limestone
The carbon content of low carbon is?
A. .05%
B. .10% - .30%
C. .30% - .60%
D. .60% - 1%
B. .10% - .30%
steel reaches its maximum hardness when it is clenched
A. below its lower critical temperature
B. just below its upper critical temperature
C. just above its lower critical temperature
D. just above its upper critical temperature
B. just below its upper critical temperature
what is contained in pearlite?
A. a mixture of cementite and martensite
B. a mixture of martensite and ferrite
C. a mixture of austenite and cementite
D. a mixture of ferrite and cementite
D. a mixture of ferrite and cementite
The property of a metal to be permanently deformed without breaking is known as?
A. brittleness
B. ductility
C. elasticity
D. malleability
B. ductility
heating steel to a bright orange or red color, then quenching it in oil or water is known as?
A. carburizing
, B. tempering
C. hardening
D. annealing
C. hardening
Heating steel for a period of time in a furnace then letting it cool in still air is known as?
A. hardening
B. normalizing
C. tempering
D. spderodizing
B. normalizing
Hematite, limonite, magnetite and taconite are four types of?
A. steel
B. alloy
C. iron core
D. coal
C. iron core
steel is an alloy of iron and?
A. aluminum
B. carbon
C. brass
D. tungsten
B. carbon
a materials ability to return to its original shape once a force is removed is known as?
A. malleability
B. elasticity
C. ductility
D. brittleness
B. elasticity
Pig iron is made in a ________ furnace
A. electric
B. cupola
C. open hearth
D. blast
D. blast
In normalizing, the steel is cooled in
A. a furnace
B. insulating
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