Structural element that transmits, through compression, the weight of the structure above to other structural elements below. A. Truss B. Column C. Beam
B. column
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10
If 12.5 square meters of space is needed for every 100 heads of chickens more than 4 weeks old, what should be the length of a 10 m wide poultry house to accommodate 10,000 heads of such animals?
Length= 12.5/100 : 10 (x)/10,000 = 125 m
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5
The ability of a material to retain its strength and other properties over a considerable period of time. A. Durability B. Elasticity C. Toughness D. Stiffness
A. Durability
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5
A load which tends to shorten or crush a structural member. A. compression B. shear C. tension D. bending
A. compression
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5
One of the most commonly used building material in many parts of the world because of its reasonable cost, ease of working, attractive appearance and adequate life if protected from moisture and insects.
Wood
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heart
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shark
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gift
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lifesaver
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5
A board-foot of lumber is equivalent to ___________. A. 144 in^3 B. 1 cu.ft. C. a and b D. none of a and b
A. 144 in^3
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eraser
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shark
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shark
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thief
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25
trap
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seesaw
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rocket
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lifesaver
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baam
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star
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gift
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banana
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10
How many bd-ft is in a piece of lumber with a cross-section of 2âx4â if its length is 216 in?
bd ft = [(2 x 4) (216 x 1/12)]/12 = 12
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10
The minimum space requirement for weaners (up to 10 kg weight) is 0.11 square meter per animal. How many pigs of this category can be confined in a 2m by 1.5m pen?
(2x1.5)/0.11=27.3 =27
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15
A hollow steel tube with an inside diameter of 100 mm must carry a tensile load of 400 kN. Determine the outside diameter in mm of the tube if the stress is limited to 120 MN/m^2.
119.35 mm
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10
A pig pen measuring 1.5 m x 4.8 m is to be constructed of concrete and concrete hollow blocks (CHB). Estimate the volume of concrete for the continuous footing if the thickness is 15 cm and the width is 30 cm.
Volume = (Perimeter) (thickness x width) = [(2x4.8) + (2x1.5)] (0.15 m) (0.30 m) = 0.567 cu.m.
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5
Smaller members which directly support the floor or ceiling. A. Joists B. girders C. rafters D. purlins
A. Joists
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15
aluminum rod is rigidly attached b/n a steel rod and a bronze rod. Axial loads are applied at the positions indicated. Find the max. value of P that will not exceed a stress in steel of 140 MPa,in aluminum of 90 MPa, or in bronze of 100 MPa