wastewater certification Grade 4 Part 1
wastewater certification Grade 4 Part 1
wastewater certification Grade 4 Part 1
wastewater certification Grade 4 Part 1
The least reactive metals are called a. anodic metals b.
galvanic metals c. cathodic metals d. tempered metals
c. cathodic metals
,What is a cathode?
a. negative pole of an electrolyte b. positive pole of an
electrolyte c. negative pole of an electrolytic cell or
system d. positive pole of an electrolytic cell or system
negative pole of an electrolytic cell or system
,Unless water cooled, the operating temperature of a
mechanical seal in a pump should never exceed a. 95°F
(35°C) b. 120°F (49°C) c. 140°F (60°C) d. 160°F (71°C)
d. 160°F (71°C)
, What term describes the condition that exists when the
source of the water supply is below the centerline of the
pump? a. total discharge head b. suction lift c. velocity
head d. pressure head
b. suction lift
All occupied trenches 4 or more ft deep must provide
exits at a. 15-ft intervals b. 20-ft intervals c. 25-ft intervals d.
30-ft intervals
c. 25-ft intervals
wastewater certification Grade 4 Part 1
wastewater certification Grade 4 Part 1
wastewater certification Grade 4 Part 1
The least reactive metals are called a. anodic metals b.
galvanic metals c. cathodic metals d. tempered metals
c. cathodic metals
,What is a cathode?
a. negative pole of an electrolyte b. positive pole of an
electrolyte c. negative pole of an electrolytic cell or
system d. positive pole of an electrolytic cell or system
negative pole of an electrolytic cell or system
,Unless water cooled, the operating temperature of a
mechanical seal in a pump should never exceed a. 95°F
(35°C) b. 120°F (49°C) c. 140°F (60°C) d. 160°F (71°C)
d. 160°F (71°C)
, What term describes the condition that exists when the
source of the water supply is below the centerline of the
pump? a. total discharge head b. suction lift c. velocity
head d. pressure head
b. suction lift
All occupied trenches 4 or more ft deep must provide
exits at a. 15-ft intervals b. 20-ft intervals c. 25-ft intervals d.
30-ft intervals
c. 25-ft intervals
