1|Page
BECC MOD 7 EXAM 2025 WITH QUESTIONS
AND ANSWERS
(True/False) Any piping equipment in the compressed air
system must be tagged out and depressurized prior to
dissconnection? - .....ANSWER ...✔✔ True
When blowing down the compressor you open the
blowdown valve for how many seconds? - .....ANSWER
...✔✔ 10-20 seconds
The centrifugal type LPAC is used in what pressure? -
.....ANSWER ...✔✔ 125 psig ( less than 150 psig)
The medium pressure air compressor is used in what
pressure system? - .....ANSWER ...✔✔ 150-1000 psig
The HPAC is used in what pressure system? -
.....ANSWER ...✔✔ Greater than 1000 psig
LP compressor will shut down after how many minutes
unloaded? - .....ANSWER ...✔✔ 10 minutes
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During loss of air pressure, what component is used to
maintain vital air by securing non vital air? -
.....ANSWER ...✔✔ Priority Valve
What is used to take 3000 psig to 80 psig for
emergency backup for the LP air system? - .....ANSWER
...✔✔ Reducer
What stores compressed air? - .....ANSWER ...✔✔ Air
reciever
Most LPACs have how many stages? - .....ANSWER
...✔✔ 2
Most HPACs have how many stages? - .....ANSWER
...✔✔ 4-6
On the six stage HPAC how many intercoolers are
there? - .....ANSWER ...✔✔ 5
What component is used to protect HPAC from over
pressurization? - .....ANSWER ...✔✔ Relief Valve
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The type 1 dehydrator remove contaminants from
where? - .....ANSWER ...✔✔ Low pressure air system
(True/False) Type I dehydrator removes vaporous
water, oil and solid contaminants? - .....ANSWER
...✔✔ true
On the type I dehydrator, the high temp alarm indicates
a loss of? - .....ANSWER ...✔✔ Proper refrigerant
temperature
The type II dehydrator has a dew point indicator to
warn of what? - .....ANSWER ...✔✔ Excessive moisture
in the air
(True/False) There are interlocks on the type II
dehydrator to prevent towers from being online at the
same time? - .....ANSWER ...✔✔ True
(True/False) Eye protection must be worn whenever
releasing compressed gases to atmosphere? -
.....ANSWER ...✔✔ True
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What are the units of force used in hydraulic systems? -
.....ANSWER ...✔✔ Pounds and Tons
What type of fluid flow is an even smooth flow? -
.....ANSWER ...✔✔ Laminar
When starting up the hydraulic system what must be
used? - .....ANSWER ...✔✔ EOSS
What system is used to operate the steering gear? -
.....ANSWER ...✔✔ Hydraulic System
What maintains hydraulic system pressure? -
.....ANSWER ...✔✔ Unloading Valve
What is used to convert fluid power energy to
mechanical motion? - .....ANSWER ...✔✔ Actuators
If you apply 100 pounds of force to a 1 inch piston, the
2 inch output piston would have how pounds of force? -
.....ANSWER ...✔✔ 200lbs
BECC MOD 7 EXAM 2025 WITH QUESTIONS
AND ANSWERS
(True/False) Any piping equipment in the compressed air
system must be tagged out and depressurized prior to
dissconnection? - .....ANSWER ...✔✔ True
When blowing down the compressor you open the
blowdown valve for how many seconds? - .....ANSWER
...✔✔ 10-20 seconds
The centrifugal type LPAC is used in what pressure? -
.....ANSWER ...✔✔ 125 psig ( less than 150 psig)
The medium pressure air compressor is used in what
pressure system? - .....ANSWER ...✔✔ 150-1000 psig
The HPAC is used in what pressure system? -
.....ANSWER ...✔✔ Greater than 1000 psig
LP compressor will shut down after how many minutes
unloaded? - .....ANSWER ...✔✔ 10 minutes
,2|Page
During loss of air pressure, what component is used to
maintain vital air by securing non vital air? -
.....ANSWER ...✔✔ Priority Valve
What is used to take 3000 psig to 80 psig for
emergency backup for the LP air system? - .....ANSWER
...✔✔ Reducer
What stores compressed air? - .....ANSWER ...✔✔ Air
reciever
Most LPACs have how many stages? - .....ANSWER
...✔✔ 2
Most HPACs have how many stages? - .....ANSWER
...✔✔ 4-6
On the six stage HPAC how many intercoolers are
there? - .....ANSWER ...✔✔ 5
What component is used to protect HPAC from over
pressurization? - .....ANSWER ...✔✔ Relief Valve
,3|Page
The type 1 dehydrator remove contaminants from
where? - .....ANSWER ...✔✔ Low pressure air system
(True/False) Type I dehydrator removes vaporous
water, oil and solid contaminants? - .....ANSWER
...✔✔ true
On the type I dehydrator, the high temp alarm indicates
a loss of? - .....ANSWER ...✔✔ Proper refrigerant
temperature
The type II dehydrator has a dew point indicator to
warn of what? - .....ANSWER ...✔✔ Excessive moisture
in the air
(True/False) There are interlocks on the type II
dehydrator to prevent towers from being online at the
same time? - .....ANSWER ...✔✔ True
(True/False) Eye protection must be worn whenever
releasing compressed gases to atmosphere? -
.....ANSWER ...✔✔ True
, 4|Page
What are the units of force used in hydraulic systems? -
.....ANSWER ...✔✔ Pounds and Tons
What type of fluid flow is an even smooth flow? -
.....ANSWER ...✔✔ Laminar
When starting up the hydraulic system what must be
used? - .....ANSWER ...✔✔ EOSS
What system is used to operate the steering gear? -
.....ANSWER ...✔✔ Hydraulic System
What maintains hydraulic system pressure? -
.....ANSWER ...✔✔ Unloading Valve
What is used to convert fluid power energy to
mechanical motion? - .....ANSWER ...✔✔ Actuators
If you apply 100 pounds of force to a 1 inch piston, the
2 inch output piston would have how pounds of force? -
.....ANSWER ...✔✔ 200lbs
