Alexandria gazette. [volume] (Alexandria, D.C.) 1834-1974, 1899-11-23
PRACTICAL AND THEoRETICL QUEs
TIONS IN ENGINEERING.


l.() What are the main elements
governing the design ofa sewerage sys-
ten, other than the method OF disposal
and considerations OF flushing and ven
uiatioi?
(o) Describe in detail an ordinary
method OF giving lines and grades for
large water mains or sewers.
(c) Name three common methods OF
driving piles, aud state under what cir.
,umstsuces each may be adopted.
2. Describe in detail the duties OF an
inspector on public work.
8. (a) A circular steel bar, ins. in
diameter and 20 feet long equals in
weight hexagoual bar 80 feet long.
Find size of hexagon to nearest hum
dredth of an inch.
(h) Snow form of field notes used
! for running curves and form for level
book.
4. (a) What are proper proportions
of sand, broken stone and cement In a
concrete for Q) building foundation,
~ an abutment under water, (3) sew
er arch
(b) Write a specification for a coD'
crete suitable for one of these condi
tions.
5. (a) What is the Office and influence
of a waste weir? Discuss the copdi
tons which govern the length OF over
| fall.
(o) Indicate by sketch some com
m on form of weir cross section.
6. ~ Enumerate the precautions
that must be taken in order to obtain
| the best results in leveling with Y
I level end ordinary rod.
| (b) Describe the manner OF making 8
survey extending the city limits to in
clude an addition Of 40 acres.
7. (a) Make sketch cross-section OF
half of q pavement suitable for heavy
traffic. showing sidewalk and curb.
(p) Discuss the relative merits OF as
phalt. brick, granite block and asphalt
block for roadway pavements.
S (a) Describe the type OF founda.
tion known as "Chicago foundation"
and explain the principle On which Its
application depends. ~
(b) Describe what is meant by MILL
construction in buildings.
(c) State briefly the characteristics
of eooi brick and OF framing timber.
8. Make cross-seclion OF bridge
having a soft. clear span for streee
with 40. #. roadway. two sidewalks III
f.. each, showing floor construction Tor
a vitrif;ed brick rosdway end grano-
lithio sidewalks.
10. Make sketch showing section
otona shntment 80. #. in height
under ordinary condition OF foundation
II -[Eugineering News.
THE questions above given show
that the examiners were not disposed
to make the task too hard for the ap'
njicants. Indeed it is stated that one
IF the three examiners has said thai
tbe questions were not within 40 pei
cent ss difficult as four years ago when
Messrs. Dunn, Corse and Watkins
ware examined. It is not near so go
we're as that required for the junior
encineer or superintendent OF con
structiou by the civil service Doln o
which require days, not hours. as an }
one can find out by sending Tor specl
men questions Of the civil service. sn
o;nee1s % would ssy only ordinary arltn
metic was required from an exper
standpoint, and it is reasonable to sup sup
nose that the gentleman who success
fnIlv passed might have measured uE
to higher standard, yet it is also oo
vious that the examiners did nos a'n
TO make the test harsh.
D. Bridges, Editor Democrat" Lancas
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tbs hest remedy for Group ever used" I'm
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