Industrial Maintenance Final Exam Review
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questions with verified answers
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____ |current |is |current |that |reverses |its |direction |of |flow |at |regular |intervals. |- |ANSWER-alternating
____ |is |the |amount |of |electrical |pressure |that |causes |electrons |to |move |in |a |circuit. |- |ANSWER-
voltage
Current |is |measured |in |____. |- |ANSWER-amperes
A(n) |____ |is |a |device |that |automatically |opens |a |circuit |to |prevent |damage |from |a |high-current |
condition. |- |ANSWER-OCPD
A(n) |____ |is |the |conducting |part |of |a |switch |that |operates |with |another |conducting |part |to |complete |
(close) |or |break |(open) |a |circuit. |- |ANSWER-contact
A(n) |____ |is |an |electrical |switch |that |is |actuated |by |a |separate |circuit. |- |ANSWER-relay
A(n) |____ |circuit |is |a |circuit |having |an |incomplete |path, |which |prevents |current |flow. |- |ANSWER-open
____ |is |the |opposition |to |the |flow |of |electrons. |- |ANSWER-resistance
A(n) |____ |is |a |material |that |has |little |resistance |and |permits |electrons |to |move |through |it |easily. |- |
ANSWER-conductor
____ |is |the |discharge |of |an |electric |current |across |a |gap. |- |ANSWER-arcing
A(n) |____ |circuit |is |an |undesirable, |low-resistance |path |for |current |to |leave |the |normal |current-
carrying |path |through |a |load. |- |ANSWER-short
, A(n) |____ |circuit |is |a |circuit |that |has |two |or |more |components |connected |such |that |there |is |only |one |
path |for |current |flow. |- |ANSWER-series
____ |is |a |material |that |has |a |high |resistance. |- |ANSWER-insulator
A(n) |____ |circuit |is |a |circuit |having |a |complete |path |for |current |flow. |- |ANSWER-closed
A(n) |____ |circuit |is |a |conducting |connection |between |electrical |equipment |and |the |earth. |- |ANSWER-
ground
A(n) |____ |is |a |heat |exchanger |through |which |heat |is |transferred |to |the |low-pressure |refrigerant |
liquid. |- |ANSWER-evaporator
A(n) |____ |is |a |temperature |sensor |inside |a |temperature-controlled |space |that |sends |signals |to |a |
control |system |in |order |to |maintain |a |set |temperature. |- |ANSWER-thermostat
____ |condensers |are |the |most |common |condensers |used |in |refrigeration |systems. |- |ANSWER-air-
cooled
____ |heat |is |heat |energy |that |causes |a |change |of |state |but |no |temperature |change. |- |ANSWER-latent
A(n) |____ |is |a |heat |exchanger |that |removes |heat |from |high-pressure |refrigerant |vapor. |- |ANSWER-
condenser
Refrigerant |____ |is |the |process |of |removing |refrigerant |from |a |system |and |capturing |it |in |a |recovery |
cylinder, |with |no |cleaning |of |refrigerant. |- |ANSWER-recovery
A |low-pressure |boiler |is |a |boiler |that |has |an |MAWP |of |up |to |____ |psi. |- |ANSWER-15
A |boiler |horsepower |is |the |power |available |from |the |evaporation |of |____lb |of |water |per |hour |at |a |
feedwater |temperature |of |____F. |- |ANSWER-34.5; |212
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questions with verified answers
| | |
____ |current |is |current |that |reverses |its |direction |of |flow |at |regular |intervals. |- |ANSWER-alternating
____ |is |the |amount |of |electrical |pressure |that |causes |electrons |to |move |in |a |circuit. |- |ANSWER-
voltage
Current |is |measured |in |____. |- |ANSWER-amperes
A(n) |____ |is |a |device |that |automatically |opens |a |circuit |to |prevent |damage |from |a |high-current |
condition. |- |ANSWER-OCPD
A(n) |____ |is |the |conducting |part |of |a |switch |that |operates |with |another |conducting |part |to |complete |
(close) |or |break |(open) |a |circuit. |- |ANSWER-contact
A(n) |____ |is |an |electrical |switch |that |is |actuated |by |a |separate |circuit. |- |ANSWER-relay
A(n) |____ |circuit |is |a |circuit |having |an |incomplete |path, |which |prevents |current |flow. |- |ANSWER-open
____ |is |the |opposition |to |the |flow |of |electrons. |- |ANSWER-resistance
A(n) |____ |is |a |material |that |has |little |resistance |and |permits |electrons |to |move |through |it |easily. |- |
ANSWER-conductor
____ |is |the |discharge |of |an |electric |current |across |a |gap. |- |ANSWER-arcing
A(n) |____ |circuit |is |an |undesirable, |low-resistance |path |for |current |to |leave |the |normal |current-
carrying |path |through |a |load. |- |ANSWER-short
, A(n) |____ |circuit |is |a |circuit |that |has |two |or |more |components |connected |such |that |there |is |only |one |
path |for |current |flow. |- |ANSWER-series
____ |is |a |material |that |has |a |high |resistance. |- |ANSWER-insulator
A(n) |____ |circuit |is |a |circuit |having |a |complete |path |for |current |flow. |- |ANSWER-closed
A(n) |____ |circuit |is |a |conducting |connection |between |electrical |equipment |and |the |earth. |- |ANSWER-
ground
A(n) |____ |is |a |heat |exchanger |through |which |heat |is |transferred |to |the |low-pressure |refrigerant |
liquid. |- |ANSWER-evaporator
A(n) |____ |is |a |temperature |sensor |inside |a |temperature-controlled |space |that |sends |signals |to |a |
control |system |in |order |to |maintain |a |set |temperature. |- |ANSWER-thermostat
____ |condensers |are |the |most |common |condensers |used |in |refrigeration |systems. |- |ANSWER-air-
cooled
____ |heat |is |heat |energy |that |causes |a |change |of |state |but |no |temperature |change. |- |ANSWER-latent
A(n) |____ |is |a |heat |exchanger |that |removes |heat |from |high-pressure |refrigerant |vapor. |- |ANSWER-
condenser
Refrigerant |____ |is |the |process |of |removing |refrigerant |from |a |system |and |capturing |it |in |a |recovery |
cylinder, |with |no |cleaning |of |refrigerant. |- |ANSWER-recovery
A |low-pressure |boiler |is |a |boiler |that |has |an |MAWP |of |up |to |____ |psi. |- |ANSWER-15
A |boiler |horsepower |is |the |power |available |from |the |evaporation |of |____lb |of |water |per |hour |at |a |
feedwater |temperature |of |____F. |- |ANSWER-34.5; |212
