V.1-
REPORT RESUMESED 012 751 VT 000 413MECHANICAL COMPETENCIES NEEDED FOR EMPLOYMENT IN FARMMACHINERY SALES AND SERVICE, AND FARM SUPPLIES AND EQUIPMENTBUSINESSES.BY... GENTRY, GENE A.
MARYLAND UNIV., COLLEGE PARK
PUB DATE FEB 66FORS PRICE MFS0.25 HC..40.60 15P.
DESCRIPTORS- *VOCATIONAL AGRICULTURE, *OFF FARM AGRICULTURALOCCUPATIONS, *EDUCATIONAL NEEDS, TAMPERS, AGRICULTURALMACHINERY OCCUPATIONS, SALES OCCUPATIONS, SERVICEOCCUPA'IONS, *MECHANICAL SKILLS, MARYLAND, COLLEGE PARK
OBJECTIVES WERE TO DETERMINE...(1) THE MECHANICALCOMPETENCIES AND UNDERSTANDINGS NEEDED BY EMPLOYEES IN TWOOFF -FARM AGRICULTURAL OCCUPATIONS, AND (2) THE DIFFERENCESBETWEEN COMPETENCIES NEEDED BY THESE EMPLOYEES AND SUCCESSFULFARMERS. DAVID TUGEND'S SURVEY INSTRUMENT WAS THE BASIS FORAN INSTRUMENT USED TO INTERVIEW RANDOM SAMPLES OF 25BUSINESSES SELECTED FROM EACH OF THE TWO AGRICULTURALOCCUPATIONAL GROUPS IN FIVE MARYLAND COUNTIES (99 FARMSUPPLIES AND EQUIPMENT BUSINESSES AND 66 FARM SALES ANDSERVICE BUSINESSES). EMPLOYERS WERE ASKED TO EVALUATE THENEED FOR 104 MECHANICAL COMPETENCIES BY SALES, SKILLED, ANDSEMISKILLED EMPLOYEES. OF THE 72 COMPETENCIES NEEDED, 34 WEREIN FARM POWER AND MACHINERY, AND 30 WERE IN FARM SHOP WORK.RECOMMENDATIONS BASED ON THIS STUDY WERE- -C1) PUPILS WHOINTEND TO ENTER FARM MACHINERY SALES AND SERVICE BUSINESSESSHOULD CE GIVEN EXTENSIVE TRAINING IN FARM POWER ANDMACHINERY AND FARM SHOP WORK, ESPECIALLY IN THE AREAS OFWELDING AND METAL WORK, (2) FARM SHOP PROGRAMS FOR TRAININGPUPILS SHOULD BE DESIGNED TO TRAIN FOR AN OCCUPATIONAL GROUPRATHER THAN A LEVEL OF EMPLOYMENT, AND (3) PUPILS PLANNING TOENTER FARMING OR FARM MACHINERY SALES AND SERVICE BUSINESSESSHOULD RECEIVE MECHANICAL TRAINING IN THE SAME CLASSES. THE119 SKILLS OR COMPETENCIES IDENTIFIED FOR THIS STUDY WERERANKED AND COMPARED WITH NEEDS IDENTIFIED IN A 1963 STUDY OFSUCCESSFUL FARMERS IN MARYLAND. (PS)
C.)
, m.OWAwor.nr. iM,
U.S. DEPARTMENT OF HEALTH, EDUCATION & WELFARE
OFFICE OF EDUCATION
THIS DOCUMENT HAS BEEN REPRODUCED EXACTLY AS RECEIVED FROM THE
PERSON OR ORGANIZATION ORIGINATING IT. POINTS OF VIEW OR OPINIONS
STATED DO NOT NECESSARILY REPRESENT OFFICIAL OFFICE OF EDUCATION
POSITION OR POLICY.
MECHANICAL COMPETENCIES NEEDED FOR EMPLOYMENT
IN FARM MACHINERY SALES AND SERVICE
AND FARM SUPPLIES AND EQUIPMENT
BUSINESSES
by
Gene A. Gentry
Department of Agricultural and Extension Education
University of Maryland
College Park, Maryland
February 1966
FOREWORD
In this study, the author was concerned esfsentially with a problem
facing teachers of vocational agriculture, particularly those in one-teacher
departments, who are attempting to introduce preparation for off-farm
agricultural occupations into their programs and at the same time continue
instruction in production agriculture. Must students preparing for employ-
ment in farm machinery sales and service, and farm supplies and equipment
businesses be taught mechanical skills that are greatly different from those
taught students preparing for work in production agriculture? Are the
mechanical skills required of these groups the same, and if not, are they
sufficiently alike to permit teaching all students in a single mechanics class ?
The sample studied was in five counties in Maryland. However, the
businesses involved are probably similar in character to other farm
machinery sales and service, and farm supplies and equipment businesses
throughout much of the rest of the country. It is not unlikely, then, that the
findings of this will be applicable for the same problem in other areas of the
United States.
The table in this publication will not likely be of interest to the casual
reader. However, teachers who are interested in solving the problem faced
in this study for themselves should find the data in this table useful.
V. R. Cardozier, HeadDepartment of Agricultural and
Extension Education
-.. np.** c.,,POPTIY
MECHANICAL COMPETENCIES NEEDED FOR EMPLOYMENT INFARM MACHINERY SALES AND SERVICE AND
FARM SUPPLIES AND EQUIPMENT BUSINESSES
Gene A. Gentry*
Prior to the passage of Public Law 88-210 in 1963, teachers of
vocational agriculture were limited by law to training students to malc-, a
beginning and advance in farming. Public Law 88-210 changed this ts permit
training for gainful employment in agricultural occupations other than farming.
It became apparent that if instruction was to extend effectively into
new occupational areas, it was necessary to determine what changes needed
to be made in course offerings. Many states conducted studies to determine
employment opportunities while others investigated such broad areas asleadership, crops, and livestock. This study was conducted to determine the
mechanical competencies (skills) needed by employees in two off-farm
agricultural occupations, with a view toward providing o basis for modifying
some of the mechanical training offered in agricultural departments in some
high schools.
Objectives. The objectives of the study were
1. To determine the mechanical competencies and understandings
needed for employment in farm machinery sales and service, and farm supplies
and equipment businesses.
2. To determine diffe-.ences between competencies needed by successful
farmers and comv.itencies needed by employees in farm machinery sales and
service occupations, and farm supplies and equipment occupations.
*Teacher of Vocational Agriculture, Palouse High School, Palouse, Washington;formerly graduate assistant, Department of Agricultural and Extension Education,University of Maryland.
"VW
3. To compare the mechanical competencies needed by employees
in farm machinery sales and service with the mechanical competencies needed
by employees hi farm supplies and equipment businesses.
4. To determine the importance of the mechanical competencies
required by each skill level -- sales, skilled, and semi-skilled -- in farmmachinery sales and service and farm supplies and equipment occupations.
5. To determine the differences between competencies needed by sales,
skilled, and semi-skilled levels of employment in farm machinery sales and
service, and farm supplies and equipment businesses.
Procedure. Selected employers in two off-farm agricultural
occupational groups were interviewed. The two groups were farm machinery
sales and service, and farm supplies and equipment. Farm machinery salesand service businesses were those businesses which sold farm machinery end
tractors and which did approximately one-half or more of their business with
farmers. Farm supplies and equipment businesses conducted one-half or
more of their business with farmers and sold such materids as feed, seed,
fertilizer, dairy equipment, hardware, and other farm supplies,
Sample. Businesses in the two agricultural groups were identified
from the yellow pages of the telephone directory covering five counties in
Marylan.. Prince Georges, Montgomery, Anne Arundel, Howard, and
Baltimore. There were 99 farm supplies and equipment businesses and 66 farm
sales and service businesses. The five counties, located in the Piedmont
Plateau and Southern regions of Maryland, were selected because they
contained considerable production agriculture yet were being influenced by
the population expansion which is turning farm land to other uses and prevent-
ing many youths from returning to the farm. Many of these students, if they
remain in agriculture, will of necessity have to enter some of the businesses
under consideration.
2
Random samples of 25 businesses were selected from each of the
two agricultural occupational groups. A total of 54 employers was interviewed,
four of which were eliminated because of the nature of the business.
Instrument for Collecting. Data. The survey instrument was derived
from one by Tugend.1 Tugend's instrument was selected to provide the base
because it had been used on a Maryland farm population and contained
mechanical competencies used by Maryland farmers. Since the study was
intended to determine in what respects changes should be made in the existing
vocational agriculture program in order to provide mechanical training for
those preparing for non-farm agricultural occupations, a base consisting of
offering for those preparing for farming seemed to be appropriate. Com-
petencies were deleted which appeared to be of little use in off-farm agricultural
occuparms in Maryland and other compr,iencies added which appeared useful.
The instrument was pre-tested on six employers in the two occupational
groups. These employers were not included in the samples. After each pre-
test interview the instrument was further refined. Early in the collection of
data three additional competencies were added because several employers
mentioned employee need of these competencies. The findings of Tugend's
study were assumed to be a basis of validation for mechanical competencies
needed by farmers.
Quantification of Ratings. Employers were asked to evaluate the need
of 104 mechanical competencies by sales, skilled, and semi-skilled employees.
The classifications of need were: very desirable, helpful, and of little use.
'David M. Tugend, "Comparative Study of Selected Farm MechanicalSkills Performed by Successful Maryland Farm Operators and FarmMechanical Skills Taught in Vocational Agriculture in Certain Maryland HighSchools" (unpublished Master's thesis, University of Maryland, College Park,1964).
3
A value of two was assigned to a rating of very desirable, one to a rating ofhelpful, and zero to a rating of little use. Using the assigned values, meanscores were calculated for each competency. Competencies which receivedmean scores of 1.5 or above were considered very desirable, 0.50 to 1.49as helpful, and 0.00 to ... 49 as of little use. Only competencies receivingmean scores above 0.50 were considered as needed by employees in off-farmagricultural occupations.
Competencies were ranked according to the mean score received. Thehighest mean score for each business or level of employment received a
ranking of 1.00. Other competencies received subsequent ranks with equal
mean scores receiving rankings of equal value.
Findings and Conclusions
Seventy-two of the 104 competencies used in this study were needed by
employees in farm machinery sales and service. Need was defined as a
rating of very desirable or helpful. Thirty-four of these competencies werein farm power and machinery and 30 were in farm shop work.
Farm power and machinery (.!empetencies needed by employees in
farm sales and service occupations were:
- flush cooling system - service air cleanerwith a commercial - clean and regap spark plugsradiator cleaner - replace points
- adjust tractor carburetors - service the diesel fuel- service the fuel injection filter
injection system - adjust valve tappets- adjust engine timing - adjust tractor brakes- adjust clutch pedal - replace head gasket
clearance - lubricate tractor- clean oil pump screen - overhaul a small engine- adjust a carburetor on - trouble shoot
a small internal com- - service transmissionbustion engine and final drive
- basic hydraulics - order parts by use of- repair tires on farm manual code number
machinery
4
%MlipiPPRIPPWArrig..MPAIW/W"Pg""MIMOMMIKIINrnr,'" 1, V, .ikVAtt Wt4.4#3.1.r.
- replace bearings- repair and sharpen a
field mower knife- hitch plows for ver-
tical and horizontalcorrectness
- adjust combine forharvesting losses
- adjust baler for properoperation
- care of machinery
Farm shop skills needed by
service occupations were:
- sharpen a twist bit- operate a power grinder- dress grinder wheels- select grinder wheels
for the job- cut threads on steel rod- rivet sheet metal- tin soldering iron- sharpen forage cutter
knives on harvestingmachines
- prepare metals forelectrical arc welding
- cut metal with the arcwelder
- use the carbon arc torchfor welding
- braze cast irons withoxyacetylene welder
- hard surface withoxyacetylene welder
- weld with a heli-arcwelder
- cut glass to a desiredshape
Other competencies needed
and service were:
- care of tools- operate hammer mill and
mix feeds
- paint machinery with apower sprayer
- register the knife ofa field mower
- calibrate a grain drill- calibrate a field
sprayer- adjust combine for
proper running speed- assemble machinery
employees in farm machinery sales and
- fit handles in hand tools- wear protective glasses
while grinding- use a portable electric
drill for drilling holesin steel
- cut metal with a hacksaw- sweat a patch with solder- shape and bend hot metal- temper a chisel- operate a lathe- select proper rods for
the type of metal to bewelded
- make a lap, butt orcorner weld on iron orsteel
- operate an oxyacetylenecutting torch
- build up worn parts- weld pipe- thread galvanized iron
pipe- assemble pipe
by employees in farm machinery sales
5
- design and maintain anefficient tool storage
- repair a damagedappliance cord
- determine purpose andselect wire size
,,,,,, ,,,,,m,.......t, .Ap. % ,,,...". . ,,,,to.,.. f .... '''',` ''' ,...1.+YA.40,Pire%
- replace and putty awindow pane
- make a common electricalsplice
- make a connection to alighting fixture
Twelve of the 104 competencies were needed by employees in farm
supplies and equipment occupations. Each of the twelve competencies was
rated helpful. They were:
- care of tools- care of machinery- apply paint after using
a primer- repair a damaged
appliance cord- lubricate tractor- make a common electrical
splice- assemble pipe
- operate a hammer milland mix feeds
- replace and putty awindow pane
- use wood preservativeson outdoor buildings
- cut glass to a desiredshape
- repair tires on farmmachinery
The table on the following pages shows relative rankings of competencies
for each level of employment in both farm machinery sales and service, and
farm supplies and equipment businesses and for successful farmers. Rank-
ings for successful farmers were taken from Tugend's stu.dy.2
Competencies with a rank between 1 and 29 in column (2), between 1
and 84 in column (3), and between 1 and 65 in column (4) received a mean
rating of helpful or very desirable. In column (5) helpful or very desirable
ratings received a rank between 1 and 4, in column (6) between 1 and 73, and
in column (7) between 1 and 16. Rankings below those indicated for each level
were "of little use".
Recommendations. Recommendations based on the conclusions of this
study are:
1. That a pupil who intends to enter farm machinery sales and service
businesses be given extensive training in farm power and machinery and farm
20p. cit. , pp. 67-71.
6
kt,
shop work, especially in the areas of welding and metal work.2. That, insofar as possible, farm shop programs be tailored to
include competencies needed by pupils who are contemplating employment in
a given agricultural occupational group.
3. That a farm shop program for training pupils to enter off-farm
agricultural occupations be designed to train for an occupational group
rather than a level of employment.
4. That emphasis be given to care of tools and care of machinery inthe farm mechanics instructional program.
5. That pupils planning to enter farming and those planning to enterfarm machinery sales and service businesses receive mechanical training inthe same classes.
For additional information about this study, the full report may beobtained through inter-library loan from the University of Maryland library:
Gentry, Gene A. "Mechanical Competencies Needed for Employmentin Farm Machinery Sales and Service and Farm Supplies andEquipment Businesses in Five Maryland Counties, " M.S. Thesis,University of Maryland, 1966.
7
20
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.50
10.0
0
48.
Sele
ct g
rind
er w
heel
s fo
r th
e jo
b47
.00
74.0
043
.00
28.5
042
.50
43.5
039
.00
49.
Rep
air
build
ing
foun
datio
ns49
.00
----
---
50.
Sele
ct e
quip
men
t acc
ordi
ng to
the
U. L
. app
rove
dla
bel
50.0
021
.50
81.0
084
.00
53.0
4'73
.00
72.5
0
51.
Mak
e a
shor
t rop
e sp
lice
51,0
0--
----
---
- --
-
52.
Rep
lace
eng
ine
head
gas
ket
52.5
040
.00
3.00
32.5
010
0.50
73.0
072
.50
53.
Inst
all :
nsul
atin
g m
ater
ials
52.5
090
.00
100.
0091
.00
53.0
073
.00
39.0
0
54.
Dra
w a
map
of
the
farm
and
pla
n a
suita
ble
crop
ping
sys
tem
56.0
030
.50
90.5
091
.00
16.5
098
.00
102.
50
55.
Rev
erse
the
dire
ctio
n of
turn
In
an e
lect
rica
lm
otor
56.0
074
.00
72.5
076
.50
30.0
054
.50
65.5
0
56.
Des
ign
and
mai
ntai
n an
eff
icie
nt to
ol s
tora
gesy
stem
56.0
034
.00
55.0
028
.50
70.5
054
.50
21.5
0
57.
Wat
er-p
roof
con
cret
e or
blo
ck w
alls
56.0
099
.00
100.
0095
.50
30.0
063
.50
32.0
0
58.
Swea
t a p
atch
with
sol
der
56.0
082
.50
51.5
047
.00
70.5
032
.00
21.5
0
59.
Adj
ust t
he c
ombi
ne f
or p
rope
r ru
nnin
g sp
eed
59.0
011
.50
8,00
44.0
042
.50
91.0
088
.50
60.
Cle
an a
nd s
et a
han
d sa
w60
.50
74.0
079
.00
68.0
070
.50
54.5
026
.50
61.
Flus
h th
e co
olin
g sy
stem
with
a c
omm
erci
alra
diat
or c
lean
er60
.50
25.5
08.
0018
.50
70.5
043
.50
32.0
0
62.
Wea
r pr
otec
tive
glas
ses
whi
le g
rind
ing
62.0
013
.00
43.0
010
.00
23.0
019
.00
16.0
0
63.
Adj
ust e
ngin
e va
lve
tapp
ets
63.0
034
.00
8.00
40.5
070
.50
32.0
05
8. 5
0
64.
Sele
ct a
n el
ectr
ical
mot
or a
ccor
ding
tow
orki
ng c
ondi
tions
64,0
018
.00
81.0
086
.00
3 9.
?.0
63.5
07?
. 50
65.
Cha
nge
a m
otor
fro
m 1
10 to
220
vol
ts b
ych
angi
ng th
ew
irin
g ho
okup
65.0
066
.50
68.0
079
.50
:3.0
034
.50
72.5
0
66.
Riv
et s
heet
met
al66
.00
2.50
61.5
036
.00
42.5
032
.00
10.0
0
67.
Cal
ibra
te a
gra
in d
rill
67.0
02.
0034
.00
26.0
01.
5080
.50
72.5
0
68.
Prep
are
met
als
for
elec
tric
al a
rc w
eldi
ng69
.00
99.0
030
.50
56.5
070
.50
19.0
045
.50
69.
Adj
ust e
ngin
e ig
nitio
n tim
ing
69.0
040
.00
8.00
40.5
070
.50
63.5
088
.50
TA
BL
E (
cont
inue
d)
Skill
or
com
pete
ncy
Ran
king
by
succ
essf
ulfa
rmer
s*(1
)
Em
ploy
ee n
eed,
as
rank
ed b
y fa
rm m
achi
nery
sale
s an
d se
rvic
e em
ploy
ers*
*E
mpl
oyee
nee
d, a
s ra
nked
by
farm
sup
plie
san
d eq
uipm
ent b
usin
ess
empl
oyer
s **
Sale
s(2
)
Skill
ed(3
)
Sem
i-sk
illed
(4)
Sale
s(5
)
Skill
ed(6
)
Sem
i-sk
illed
(7)
70.
Est
ablis
h a
farm
sho
p69
.00
---_
----
---
--71
. Dre
ss g
rind
er w
heel
s72
.00
82.5
03
8. 0
023
.00
70.5
043
.50
39.0
072
. Sel
ect t
he p
rope
r ro
ds f
or e
lect
rica
l arc
wel
ding
72.0
090
.00
27.5
056
.50
70.5
019
.00
39.0
073
. Cut
a p
iece
of
met
al w
ith th
e ar
c w
elde
r72
.00
90.0
034
.00
56.5
070
.50
19.0
039
.00
74. D
eter
min
e pu
rpos
e an
d se
lect
wir
e si
zes
acco
rdin
g to
cod
e74
.50
34.0
077
.00
73.0
042
.50
43.5
060
.50
75. M
ake
a la
p, b
utt o
r co
rner
wel
d on
iron
or
stee
l74
.50
99.0
038
.00
61.5
070
.50
19.0
045
.50
76. M
easu
re f
ield
s to
det
erm
ine
acre
age
76.5
030
.50
86.5
061
.00
16.5
09
8. 0
097
.50
77. A
djus
t tra
ctor
gov
erno
r76
.50
45.5
08.
0040
.50
100.
5063
.50
80.5
078
. Cle
an a
nd s
ervi
ce a
use
d el
ectr
ical
mot
or79
.00
74.0
072
.50
73.0
053
.00
43.5
065
. 50
79.
Pale
st m
achi
nery
with
a p
ower
spr
ayer
79.0
056
.50
53.5
06.
0010
0.50
80.5
032
.00
80. M
easu
re c
ombi
ne h
arve
stin
g lo
sses
79.0
08.
008.
0047
.00
42.5
09
1. 0
088
.50
S81
. Con
stru
ct a
por
tabl
e bu
ildin
g ac
cord
ing
to a
blu
epri
nt81
.00
66.5
090
.50
100.
5030
.00
54.5
053
.00
82. C
onst
ruct
a s
impl
e te
rrac
e82
.00
40.0
093
.50
100.
5070
.50
98.0
080
.50
83.
Inst
all a
bul
k le
rtili
zer
hand
ling
syst
em84
.00
66.5
086
.50
100.
509.
0073
.00
45.5
084
. Cor
rect
def
ects
in a
dra
inag
e sy
stem
84.0
074
.00
97.5
010
0.50
30.0
098
.00
97.5
085
. Use
a c
arbo
n ar
c to
rch
for
wel
ding
84.0
090
.00
43.0
056
.50
70.5
019
.00
53.0
086
. Est
imat
e th
e co
st o
f an
irri
gatio
n sy
stem
86.0
040
.00
90.5
091
.00
70.3
010
4.00
10 2
. 50
87.
Plan
a b
uild
ing
fire
con
trol
pro
gram
87.0
066
.50
97.5
095
.50
70.5
091
.00
88.5
088
. Con
stru
ct a
n ou
tlet f
or f
ield
tile
89.5
089
. Ser
vice
the
dies
el-f
uel-
inje
ctio
n fi
lters
89.5
025
.50
8.00
36.0
010
0.50
63.5
097
.50
90. O
pera
te a
n ox
yace
tyle
ne c
uttin
g to
rch
89.5
082
.50
27.5
053
.50
70.5
019
.00
32.0
091
. Har
d su
rfac
e w
ith o
xyac
etyl
ene
wel
der
usin
g th
e pr
oper
rod
89.5
099
.00
56.0
065
.00
70.5
063
.50
53.0
092
. Cor
rect
def
ects
in a
n ir
riga
tion
syst
em93
.00
40.0
085
.00
81.0
042
.50
102.
5097
.50
93. U
se w
ood
glue
for
out
side
con
stru
ctio
n93
.00
90.0
095
.50
88.0
030
.00
91.0
072
.50
94. B
raze
cas
t iro
ns w
ith th
e ox
yace
tyle
ne w
elde
r93
.00
90.0
030
.50
6 1.
50
70.5
019
.00
60.5
095
.In
stal
l ove
rloa
d pr
otec
tive
devi
ces
95.0
061
.00
75.0
076
.50
23.0
043
.50
45.5
096
. Con
stru
ct a
far
m p
ond
96.5
056
.50
93.5
095
.50
70.5
010
2.50
97.5
097
.In
stal
l a f
eed
or g
rain
aug
er s
yste
m96
.50
34.0
078
.00
76.5
04.
0019
.00
2.55
0
98. E
stim
ate
the
cost
of
a dr
aina
ge s
yste
m98
.00
56.5
090
.50
91.0
070
.50
101.
0010
2..5
099
. Det
erm
ine
prop
er s
ize
of f
ield
tile
99.5
07
4. 0
095
.50
95.5
030
.00
98.0
010
2.50
100.
Plan
a f
arm
wir
ing
syst
em99
.50
101.
Car
e of
mac
hine
ry1.
008.
004.
506.
504.
0010
.00
102.
Car
e of
tool
s9.
5017
.50
2.00
6.50
2.00
1.r0
103.
Ser
vice
fue
l inj
ectio
n sy
stem
29.0
040
.00
83.0
010
0.50
68.0
03.
50
104.
Ove
rhau
l a s
mal
l eng
ine
45.5
022
.50
40.5
010
0.50
73.0
0.4
S .
30
105.
Tro
uble
sho
ot18
.00
17.5
036
.00
42.5
019
.00
-0.5
0
4 -A I I i
TA
BL
E (
cont
inue
d)
Skill
or
com
pete
ncy
Ran
king
by
succ
essf
ulfa
rmer
s*
Em
ploy
ee n
eed,
as
rank
ed b
y fa
rm m
achi
nery
sale
s an
d se
rvic
e em
ploy
ers*
*E
mpl
oyee
nee
d, a
s ra
nked
by
farm
sup
plie
san
d eq
uipm
ent b
usin
ess
empl
oyer
s***
Sale
sSk
illed
Sem
i-sk
illed
Sale
sSk
illed
Sem
i-sk
illed
(1)
(2)
(3)
(4)
(5)
(6)
(7)
106.
Ser
vice
tran
smis
sion
and
fin
al d
rive
66.5
022
.50
53.5
010
0.50
73.0
097
.50
107.
Bas
ic h
ydra
ulic
s23
.00
8.00
43.0
030
.00
78.0
084
.00
108.
Adj
ust b
aler
for
pro
per
oper
atio
n6.
508.
0047
.00
42.5
091
.00
88.5
010
9. A
ssem
ble
mac
hine
ry18
.00
46.5
01.
00qn,nn
73.0
032
.00
110.
Sha
pe a
nd b
end
hot m
etal
82.5
057
.00
47.0
090
.50
73.0
053
.00
111.
Tem
per
a ch
isel
90.0
063
.50
68.0
090
.50
85.0
045
.50
112.
Ann
eal m
etal
99.0
065
.50
76.5
090
.50
85.0
045
.50
113.
T.1
H "
Iter
atio
n90
.00
60.0
073
.00
90.5
085
.00
65.5
014
.B
uild
up
wor
n pa
rts
99.0
043
.00
59.0
070
.50
43.5
053
.00
115.
Wel
d pi
pe99
.0:1
'51
.50
61.5
070
.50
19.0
053
.00
116.
Wel
d w
ith a
hel
l -ar
c w
elde
r10
4.00
58.5
079
.50
70.5
054
.50
72.5
011
7. A
ssem
ble
pipe
66.5
070
.00
51.0
023
.00
32.0
05.
00- -
118.
Ope
rate
ham
mer
mill
and
mix
fee
ds11
9.In
stal
l and
ope
rate
dai
ry e
quip
men
t14
.50
45.5
061
.50
84.0
061
.50
82.0
016
.50
20.0
01.
0095
.00
2.50
93.5
0
*Dav
id M
. Tug
end,
"C
ompa
rativ
e St
udy
of S
elec
ted
Farm
Mec
hani
cal S
kills
Per
form
edby
Suc
cess
ful M
aryl
and
Farm
Ope
rato
rs a
nd F
arm
Mec
hani
cal S
kills
Tau
ght i
n V
ocat
iona
lA
gric
ultu
re in
Cer
tain
Mar
ylan
d H
igh
Scho
ols"
(un
publ
ishe
d M
aste
r's th
esis
, Uni
vers
ity o
f M
aryl
and,
Col
lege
Par
k, 1
964)
, pp.
67-
71.
**C
ompe
tenc
ies
with
a r
ank
high
er th
an 2
9.00
in s
ales
(2)
, 84.
00 in
ski
lled
(3),
and
65.
00 in
sem
i-sk
illed
(4)
leve
ls o
fem
ploy
men
t hav
e a
ratin
g of
hel
pful
or
very
des
irab
le.
***C
ompe
tenc
ies
with
a r
ank
high
er th
an 4
.00
in s
ales
(5)
, 73.
00 in
ski
lled
(6),
and
16.
00 in
sem
i-sk
illed
(7)
leve
ls o
f em
ploy
men
t hav
ea
ratin
g of
hel
pful
.
`b'