TCEQ CLASS A PREP PART 1 EXAM
QUESTIONS WITH COMPLETE SOLUTIONS.
90 % of of underground pipe failures are related to -
correct answer - improper backfill and lack of proper
bedding
A 1 foot of column of water exerts how much pressure ?
- correct answer - 1 foot = .433psi
A cross connection is a physical connection between a
public water supply and ? - correct answer - 1) another
supply of unknown or questionable quality 2) any source
that may contain contamination and 3) any water that is
treated to a lesser degree.
A Customer Service Inspection is - correct answer - An
examination of the private water distribution facilities
A Customer Service Inspection must be performed -
correct answer - When the water purveyor has reason to
believed that cross-connections' exist,
after any material improvements, corrections, or
additions.
,Prior to providing continuing water service to new
construction.
a ditch 4 feet wide , 6 feet deep and 1000 feet long will
ve excavated . how many cubic yards of pipe bedding will
be needed to to bed the trech 7 inches deep. - correct
answer - This is a volume question. so you would
multiplied 4 feet by 1000 feet and convert this 7 inches to
percent them multiplied that to get your leanth times
with times height . that gives you the cubic feet so you
need to devide by 27 to get the cubic yards 85.9 yd3
A field using wastewater effluent for irrigation should be
separated from a well by at least - correct answer - 500
feet
A fire hydrant thrust block will have to be largest in -
correct answer - Peat
A piping arrangment extending 33.9 above the highest
downstream opening is a - correct answer - Barometric
loop
A PVB must be installed above all downstream piping and
openings a minimum of ? - correct answer - 12 inches
, A record of the different layers of rock found in drilling
well is a ? - correct answer - Drilling log
A sample for physical and chemical analysis of a new well
must be taken after how many hours of continuous
pumping - correct answer - 36 hours
A sanitary control easement must cover land within how
many feet of a public water well - correct answer - 150
feet
A structure 100 feet tall. Assuming the building has water
lines all the way to the top , the pressure at ground level
would apprxomatley what? - correct answer - 100 feet/
2.31 to get psi per foot , it would be 43.3
A tank that has a capacity of 700,000 gallons must be
disinfected with a dosaged of 50 mg/l of chlorine. how
much 65% HTH will it take to achive the same goal -
correct answer - mgdx8.34.50 is your normal forumal to
find lbs of chlorine. how ever we need that is for 100 %
we have 65% so you will need to .7mgdx8.34x50mg/l /.65
=449.07
A vacuum is - correct answer - The absence of some
atmospheric pressure
QUESTIONS WITH COMPLETE SOLUTIONS.
90 % of of underground pipe failures are related to -
correct answer - improper backfill and lack of proper
bedding
A 1 foot of column of water exerts how much pressure ?
- correct answer - 1 foot = .433psi
A cross connection is a physical connection between a
public water supply and ? - correct answer - 1) another
supply of unknown or questionable quality 2) any source
that may contain contamination and 3) any water that is
treated to a lesser degree.
A Customer Service Inspection is - correct answer - An
examination of the private water distribution facilities
A Customer Service Inspection must be performed -
correct answer - When the water purveyor has reason to
believed that cross-connections' exist,
after any material improvements, corrections, or
additions.
,Prior to providing continuing water service to new
construction.
a ditch 4 feet wide , 6 feet deep and 1000 feet long will
ve excavated . how many cubic yards of pipe bedding will
be needed to to bed the trech 7 inches deep. - correct
answer - This is a volume question. so you would
multiplied 4 feet by 1000 feet and convert this 7 inches to
percent them multiplied that to get your leanth times
with times height . that gives you the cubic feet so you
need to devide by 27 to get the cubic yards 85.9 yd3
A field using wastewater effluent for irrigation should be
separated from a well by at least - correct answer - 500
feet
A fire hydrant thrust block will have to be largest in -
correct answer - Peat
A piping arrangment extending 33.9 above the highest
downstream opening is a - correct answer - Barometric
loop
A PVB must be installed above all downstream piping and
openings a minimum of ? - correct answer - 12 inches
, A record of the different layers of rock found in drilling
well is a ? - correct answer - Drilling log
A sample for physical and chemical analysis of a new well
must be taken after how many hours of continuous
pumping - correct answer - 36 hours
A sanitary control easement must cover land within how
many feet of a public water well - correct answer - 150
feet
A structure 100 feet tall. Assuming the building has water
lines all the way to the top , the pressure at ground level
would apprxomatley what? - correct answer - 100 feet/
2.31 to get psi per foot , it would be 43.3
A tank that has a capacity of 700,000 gallons must be
disinfected with a dosaged of 50 mg/l of chlorine. how
much 65% HTH will it take to achive the same goal -
correct answer - mgdx8.34.50 is your normal forumal to
find lbs of chlorine. how ever we need that is for 100 %
we have 65% so you will need to .7mgdx8.34x50mg/l /.65
=449.07
A vacuum is - correct answer - The absence of some
atmospheric pressure
