TEST 1(F) Flashcards
Dowels connecting adjacent roadway slabs are used primarily to
A. transmit compressive stress to adjacent slabs
B. reinforce against temperature stress
C. reinforce against shrinkage stress
D. prevent differential settlement of slabs
D. prevent differential settlement of slabs
Good practice requires that the minimum overhead clearance at the crown for an underpass at the intersection of two highways be MOST NEARLY feet.
A. 10
B. 14
C. 17
D. 19
B. 14
A simple beam on an 18’0” span carries a uniformly distributed load including its own weight of 200 pounds per foot. If a jack is placed under the midspan and the midpoint jacked up so it is at the same elevation as the ends, the load on the jack, in pounds, will be
A. 960
B. 1600
C. 1800
D. more than 1800
D. more than 1800
Of the following, the one which is NOT the symbol for a standard beam connection is A. A3
B. BЗ
C. H3
D. T3
D. T3
Of the following items, the one that is NOT important in determining the minimum length of vertical curve required to connect two intersecting grades is
A. maximum speed of vehicle
B. grades of tangents
C. whether intersection is at a summit or a sag
D. crown of road
D. crown of road
For an angle of intersection of 16°30’, tables of the functions of a one-degree curve show the middle ordinate to be 59.30 feet. For the same angle of intersection, the middle ordinate for a curve whose radius is 1433 feet is MOST NEARLY
A. 14.83
В. 24.94
C. 67.35
D. 183.72
A. 14.83
The Proctor Test is used in testing
A. asphalt
B. concrete
C. soils
D. mortar
C. soils
Within the cross-section of a WF beam, the horizontal shearing stress is a maximum at the
A. midpoint of the beam
B. outermost fiber of the compression flange
C. outermost fiber of the tension flange
D. point of intersection of web and flange
A. midpoint of the beam
The maximum load allowed on a 3/8” fillet weld, 6” long, when the allowable shearing stress is 13,000 #/sq.in. is MOST NEARLY, in pounds,
A. 20,700
B. 21,900
C. 24,300
D. 26,370
A. 20,700
A closed level circuit was run starting at BM A. The elevation of A on closing the circuit was found to be 0.097 lower than at the start. Of the following, the MOST logical reason for this error barring mistakes, is the
A. length of the rod was not standard due either to a uniform expansion or contraction
B. level settled after the backsights had been read
C. turning points settled after the foresights had been read
D. line of sight was inclined upward and each foresight distance exceeded the corresponding backsight distance.
D. line of sight was inclined upward and each foresight distance exceeded the corresponding backsight distance.
The sensitivity of the bubble tube of an engineer’s level can best be measured by
A. measuring the distance between etched lines on the vial
B. taking readings on a rod a known distance away with bubble in two different positions
C. making a two-peg test
D. measuring the curvature of the etched surface of the vial
B. taking readings on a rod a known distance away with bubble in two different positions
Of the following, the MOST important source of accidental error in ordinary leveling work is
A. change in length of leveling rod due to change in temperature
B. axis of level tube not perpendicular to vertical axis
C. eye piece is not focused accurately
D. failure to wave rod
C. eye piece is not focused accurately
When taking a single measure of the horizontal angle between two points which differ greatly in elevation, the MOST important of the following relationships in the transit is
A. axis of long bubble parallel to line of sight.
B. transverse axis perpendicular to vertical axis
C. index correction of vertical arc equal to zero
D. vertical cross-hair in plane perpendicular to transverse axis
B. transverse axis perpendicular to vertical axis
Of the following factors, the one that is LEAST important in determining the total amount of superelevation required at the edge of pavement on a horizontal curve is
A. speed of vehicle
B. weight of vehicle
C. radius of curve
D. width of pavement
B. weight of vehicle
If the horizontal circle of a transit is graduated to 20’ and 39 divisions on the limb equal 40 divisions on the vernier, then the LEAST count of vernier is
A. 14”
B. 28”
C. 30”
D. 1’6”
C. 30”
The slump test for concrete is used to determine the
A. strength
B. consistency
C. water ratio
D. segregation
B. consistency
ADD QUESITON 17
A Williot-Mohr diagram is used to determine
A. deflection in trusses
B. wind stress in trusses
C. diagonal shear in beams
D. uplift pressure on the base of a dam
A. deflection in trusses
A reinforced concrete beam is 10” wide by 16” effective depth. If fs = 20,000 lb./sq.in., fc = 1350lb./sq.in. and n = 10, then the value of k is most nearly
A. = 0.367
B = 0.373
C = 0.403
D = 0.419
C = 0.403
Of the following concrete structures, the one in which gunite is MOST likely used is
A. footings
B. piles
C. walls
D. beams
C. walls
For soil sampling in hardpan, the BEST method to use is
A. jet probing
B. wash boring
C. auger boring
D. core boring
D. core boring
ADD QUESTION 22
A reinforced concrete beam 10” wide by 16” effective depth is subjected to an end shear of 15,000lbs. If fs = 20,000 #/sq.in., fc = 2500#/sq.in., u = 187 #/sq.in., and j = 0.857, the perimeter of the steel required to reinforce against shear, in inches, is most nearly
A. 2.38
B. 3.72
C. 5.85
D. 6.94
C. 5.85
A precast reinforced concrete beam 20’0” long, weight 50 #/ft. is to be lifted by two slings symmetrically placed. For minimum bending stress in the beam, the distance from an end to a point of supper in feet is MOST NEARLY
A. 3.98
B. 4.15
C. 4.35
D. 5.15
B. 4.15
ADD QUESTION 24
