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A wood column is pin connected at its top and bottom. Determine the controlling slenderness ratio, le/d, for the column. Assume normal temperatures, no incising, and that all loads are downward. Ignore the weight of the member.Load:PD = 500 lbPL = 3,500 lbPLr = 1,000 lbPS = 1,500 lbPR = 1,500 lbPW = 0 lbPE = 0 lbLength:L = 9 ftMember size:4 x 12Stress grade and species:No. 2 Douglas Fir-LarchUnbraced length:lu = L = 9 ftMoisture content:MC < 19 percent

The nurse is caring for a client with Chronic Obstructive Pulmonary Disease (COPD), and the client’s FEV1 is 35%. Based on the Global Initiative for Chronic Obstructive Lung Disease (GOLD) classifications, how would the severity of the client’s COPD be categorized?

A wood member is loaded as shown. Using ASD, determine the adjusted tension strength, Ft’. Assume normal temperatures, no incising, and that all loads act in the directions shown. Ignore the weight of the member.Load:PD = 4,500 lbPL = 0 lbPLr = 0 lbPS = 0 lbPR = 0 lbPW = 5,500 lbPE = 6,000 lbQD = 4,000 lbQL = 3,000 lbQLr = 3,000 lbQS = 2,000 lbQR = 2,000 lbQW = 0 lbQE = 0 lbSpan:L = 14 ft Member size:4 x 12 Stress grade and species:No. 1 & Better Douglas Fir-Larch Unbraced length:lu = L/2 = 7 ft Moisture content:MC < 19 percent 

A pin-connected wood truss is loaded and supported as shown. Determine the axial force produced in member GH if PB = 1,000 lb, PC = 2,200 lb, PD = 3,200 lb, L = 6 ft, and h = 8 ft. Positive choices indicate tension. Negative choices indicate compression.

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A wood member is loaded as shown. Using ASD, determine the adjusted tension strength, Ft’. Assume normal temperatures, no incising, and that all loads act in the directions shown. Ignore the weight of the member.Load:PD = 1,000 lbPL = 0 lbPLr = 0 lbPS = 0 lbPR = 0 lbPW = 8,000 lbPE = 8,000 lbQD = 2,500 lbQL = 2,500 lbQLr = 0 lbQS = 500 lbQR = 2,000 lbQW = 0 lbQE = 0 lbSpan:L = 12 ft Member size:4 x 8 Stress grade and species:Select Structural Douglas Fir-Larch Unbraced length:lu = L/2 = 6 ft Moisture content:MC < 19 percent 

A pin-connected wood truss is loaded and supported as shown. Determine the axial force produced in member GH if PB = 700 lb, PC = 1,400 lb, PD = 3,200 lb, L = 6 ft, and h = 8 ft. Positive choices indicate tension. Negative choices indicate compression.

Use APA Technical Note Q225 entitled Load-Span Tables for APA Structural-Use Panels and ASD procedures to answer the following question.The spacing of joists in a flat roof is 16-in. o.c. Roof dead load = 5 psf. Snow load = 48 psf. Roof sheathing is to be an APA rated plywood sheathing, and panels are to be oriented in the strong direction. The load is governed by deflection limits of L/240 for snow load and L/180 for total load. Only consider these limits. Assume multi-span, normal duration of load, dry conditions, and panels 24 inches or wider. Would a panel with a span rating of 32/16 be adequate?

Use APA Technical Note Q225 entitled Load-Span Tables for APA Structural-Use Panels and ASD procedures to answer the following question.The spacing of joists in a floor system is 48-in. o.c. Floor dead load = 10 psf. Floor live load = 131 psf. Floor sheathing is to be an APA rated OSB sheathing, and panels are to be oriented in the strong direction. The load is governed by bending and shear for total load. Only consider these limits. Assume multi-span, normal duration of load, dry conditions, and panels 24 inches or wider. Would a panel with a span rating of 40/20 be adequate?

A wood member is loaded as shown. Using ASD, determine the adjusted tension strength, Ft’. Assume normal temperatures, no incising, and that all loads act in the directions shown. Ignore the weight of the member.Load:PD = 4,000 lbPL = 0 lbPLr = 0 lbPS = 0 lbPR = 0 lbPW = 5,500 lbPE = 6,500 lbQD = 3,000 lbQL = 2,000 lbQLr = 0 lbQS = 500 lbQR = 5,000 lbQW = 0 lbQE = 0 lbSpan:L = 10 ft Member size:4 x 6 Stress grade and species:No. 1 Douglas Fir-Larch Unbraced length:lu = L/2 = 5 ft Moisture content:MC > 19 percent