ABC Wastewater Verified Multiple Choice and Conceptual Actual Frequently Tested
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To have significant meaning for laboratory tests of the
evaluation of a wastewater treatment plant's performance
the best method of sampling is
A. Grab sampling
D. Proportional composite sampling
B. Hourly sampling
C. Sampling during peak flow
D. Proportional composite sampling
E. Automatic sampling
BOD samples should be collected before chlorination be-
cause
A. Chlorine reacts with the butter solution
B. Chlorine interferes with the activity of organisms
B. Chlorine interferes with the activity of organisms
C. Chlorine reacts with the calcium ions
D. Chlorine attects the alkalinity
A water sample is "fixed" in the field by
A. Keeping the sample in a Cipolletti device
B. Anchoring the container to the stream bed C. Adding chemicals to prevent the changing of water
C. Adding chemicals to prevent the changing of water quality
quality
D. Maintaining a constant sample temperature of 95° F
The best procedure for determining the SS of a plant
effluent is to analyze
A. A 24-hr composite sample of the effluent
B. A grab sample of the effluent at high flow A. A 24-hr composite sample of the effluent
C. A grab sample of the effluent at low flow
D. A series of grab samples taken at ditterent times during
the day
A sample obtained by taking portions of wastewater at a
collection point in proportion to the flow is called B. A weighted composite
A. A most probable number (MPN)
, ABC Wastewater Verified Multiple Choice and Conceptual Actual Frequently Tested
Exam Questions With Reviewed 100% Correct Detailed Answers
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B. A weighted composite
C. A routine sample
D. A bacterial-solids sample
Settleable solids by volume are determined through the
use of
A. A Nessler tube
D. An Imhott cone
B. A Kjeldahl flask
C. A Gooch crucible
D. An Imhott cone
The settleable solids test is primarily used to
A. Measure the volume of solids that may be removed by
settling tanks
A. Measure the volume of solids that may be removed by
B. Determine the BOD required for treatment
settling tanks
C. Measure the rate of decomposition of organic volatile
solids
D. Determine the amount of chlorine required
The standard total SS test requires the Gooch crucible
fiber glass mat and solids to be dried in the oven at
A. 95° C
B. 103° C
B. 103° C
C. 110° C
D. 115.5° C
The SS content of wastewater is most accurately measured
by
A. Filtering the sample through a specially prepared filter; A. Filtering the sample through a specially prepared filter;
drying the filter and material retained on it in an oven at drying the filter and material retained on it in an oven at
103° C; weighing the filter; and determining its added 103° C; weighing the filter; and determining its added
weight caused by the solids retained weight caused by the solids retained
B. Evaporating the sample and weighing the residue
C. Centrifuging the sample and measuring the volume of
Exam Questions With Reviewed 100% Correct Detailed Answers
Guaranteed Pass!!Current Update!!
To have significant meaning for laboratory tests of the
evaluation of a wastewater treatment plant's performance
the best method of sampling is
A. Grab sampling
D. Proportional composite sampling
B. Hourly sampling
C. Sampling during peak flow
D. Proportional composite sampling
E. Automatic sampling
BOD samples should be collected before chlorination be-
cause
A. Chlorine reacts with the butter solution
B. Chlorine interferes with the activity of organisms
B. Chlorine interferes with the activity of organisms
C. Chlorine reacts with the calcium ions
D. Chlorine attects the alkalinity
A water sample is "fixed" in the field by
A. Keeping the sample in a Cipolletti device
B. Anchoring the container to the stream bed C. Adding chemicals to prevent the changing of water
C. Adding chemicals to prevent the changing of water quality
quality
D. Maintaining a constant sample temperature of 95° F
The best procedure for determining the SS of a plant
effluent is to analyze
A. A 24-hr composite sample of the effluent
B. A grab sample of the effluent at high flow A. A 24-hr composite sample of the effluent
C. A grab sample of the effluent at low flow
D. A series of grab samples taken at ditterent times during
the day
A sample obtained by taking portions of wastewater at a
collection point in proportion to the flow is called B. A weighted composite
A. A most probable number (MPN)
, ABC Wastewater Verified Multiple Choice and Conceptual Actual Frequently Tested
Exam Questions With Reviewed 100% Correct Detailed Answers
Guaranteed Pass!!Current Update!!
B. A weighted composite
C. A routine sample
D. A bacterial-solids sample
Settleable solids by volume are determined through the
use of
A. A Nessler tube
D. An Imhott cone
B. A Kjeldahl flask
C. A Gooch crucible
D. An Imhott cone
The settleable solids test is primarily used to
A. Measure the volume of solids that may be removed by
settling tanks
A. Measure the volume of solids that may be removed by
B. Determine the BOD required for treatment
settling tanks
C. Measure the rate of decomposition of organic volatile
solids
D. Determine the amount of chlorine required
The standard total SS test requires the Gooch crucible
fiber glass mat and solids to be dried in the oven at
A. 95° C
B. 103° C
B. 103° C
C. 110° C
D. 115.5° C
The SS content of wastewater is most accurately measured
by
A. Filtering the sample through a specially prepared filter; A. Filtering the sample through a specially prepared filter;
drying the filter and material retained on it in an oven at drying the filter and material retained on it in an oven at
103° C; weighing the filter; and determining its added 103° C; weighing the filter; and determining its added
weight caused by the solids retained weight caused by the solids retained
B. Evaporating the sample and weighing the residue
C. Centrifuging the sample and measuring the volume of
