PSAD BATCH 2
Question 1
A hoist trolley is subjected to the three forces shown in Figure 1. Knowing that the angle is Îą is 40 degrees, determine:
The horizontal component of the resultant
0lb
100lb
200lb
300lb
Question 2
A hoist trolley is subjected to the three forces shown in Figure 1. Knowing that the angle is Îą is 40 degrees, determine:
The required magnitude of the force P if the resultant of the three forces is to be vertical
100.4 lb
177.9 lb
122.3 lb
134.1 lb.
Question 3
A hoist trolley is subjected to the three forces shown in Figure 1. Knowing that the angle is Îą is 40 degrees, determine:
The corresponding magnitude of the resultant
410 lb
820 lb
240 lb
520 lb
Question 4
Situation 2. For the frame and loading shown in Figure 2, determine following:
The vertical component at A
10 kips
50 kips
25 kips
20 kips
Question 5
Situation 2. For the frame and loading shown in Figure 2, determine following:
The horizontal component at B
10 kips
50 kips
25 kips
20 kips
Question 6
Situation 2. For the frame and loading shown in Figure 2, determine following:
The horizontal component at C
10 kips
50 kips
25 kips
20 kips
Question 7
Situation 3. A beam is subjected to a linearly distributed downward load and rests on two wide supports BC and DE, which exert uniformly distributed upward loads as shown in Figure 3. Determine the following:
The distributed force BC
31.50 N/m
21.21 N/m
35.28 N/m
28.10 N/m
Question 8
Situation 3. A beam is subjected to a linearly distributed downward load and rests on two wide supports BC and DE, which exert uniformly distributed upward loads as shown in Figure 3. Determine the following:
The distributed force DE
31.50 N/m
21.21 N/m
35.28 N/m
28.10 N/m
Question 9
Situation 4. The load is supported by the four 304 stainless steel wires that are connected to the rigid members AB and DC as shown in Figure 4. Use E = 28 x 10 psi for stainless steel. Determine the following:
The internal force in wire CF
41.67 lb
375.00 lb
125.00 lb
83.33 lb
Question 10
Situation 4. The load is supported by the four 304 stainless steel wires that are connected to the rigid members AB and DC as shown in Figure 4. Use E = 28 x 10 psi for stainless steel. Determine the following:
The internal force in wire DE
41.67 lb
375.00 lb
125.00 lb
83.33 lb
Question 11
Situation 4. The load is supported by the four 304 stainless steel wires that are connected to the rigid members AB and DC as shown in Figure 4. Use E = 28 x 10 psi for stainless steel. Determine the following:
The vertical displacement of the 500-lb load if the members were originally horizontal when the load was applied (each wire has a cross-sectional area of 0.025 sq.in)
0.0321 in
0.0185 in
0.0074 in
0.0260 in
Question 12
Situation 5. A solid steel shaft is 6 m in length is subjected to a torque of 12 kN-m.
What is the minimum diameter of the shaft if it is to twist no more than three degrees?
120 mm
115 mm
125 mm
140 mm
Question 13
Situation 5. A solid steel shaft is 6 m in length is subjected to a torque of 12 kN-m.
What is the maximum shearing stress developed in the shaft? Use G83 GPa.
25.33 MPa
39.21 MPa
41.27 MPa
53.28 MPa
Question 14
Situation 6. A steel marine propeller shaft 14 inches in diameter and 18 feet long is used to transmit 5000 hp at 189 rpm. If G = 12 x 10 psi, determine the following:
The torque experienced by the propeller
1992482.2 lb-in
1667337.5 lb-in
1558212.1 lb-in
1820049.8 lb-in
Question 15
Situation 6. A steel marine propeller shaft 14 inches in diameter and 18 feet long is used to transmit 5000 hp at 189 rpm. If G = 12 x 10 psi, determine the following:
The maximum shearing stress
2294.2 psi
3094.6 psi
5942.1 psi
4512.9 psi
Question 16
Situation 7. Consider the homogeneous and prismatic beam shown in Figure 5.
What is the internal moment at C?
6.250 kN-m
6.875 kN-m
13.125 kN-m
26.250 kN-m
Question 17
Situation 7. Consider the homogeneous and prismatic beam shown in Figure 5.
What is the reaction at A?
6.250 kN-m
6.875 kN-m
13.125 kN-m
26.250 kN-m
Question 18
Situation 7. Consider the homogeneous and prismatic beam shown in Figure 5.
What is the reaction at C?
6.250 kN-m
6.875 kN-m
13.125 kN-m
26.250 kN-m
Question 19
Situation 8. The truss shown in Figure 6 is loaded with a 30-kN downward force.
What is the force in member AB?
0 kN
30 kN
40 kN
50 kN
Question 20
Situation 8. The truss shown in Figure 6 is loaded with a 30-kN downward force.
What is the force in member AC?
0 kN
30 kN
40 kN
50 kN
Question 21
Situation 8. The truss shown in Figure 6 is loaded with a 30-kN downward force.
Which of the following gives the vertical displacement of C? Use AE = 100,000 KN.
0.57 mm
2.08 mm
3.60 mm
5.40 mm
Question 22
Situation 9. A frame is loaded as shown in Figure 7.
What is the horizontal reaction at A?
1.68 kN
3.36 kN
15.00 kN
30.00 kN
Question 23
Situation 9. A frame is loaded as shown in Figure 7.
What is the moment reaction at D?
0 kN-m
1.68 kN-m
3.28 kN-m
6.64 kN-m
Question 24
Situation 10. The top plate of a bolted single lap connection is shown in Figure 8. The plates are 15-in by 0.5-in made of A36 steel (Fy = 36 ksi, F, 58 ksi) and the bolts have a diameter of % in.
What is the net width of the plate along path 1-2-3?
12.375 in
12.938 in
13.375 in
13.938 in
Question 25
Situation 10. The top plate of a bolted single lap connection is shown in Figure 8. The plates are 15-in by 0.5-in made of A36 steel (Fy = 36 ksi, F, 58 ksi) and the bolts have a diameter of % in.
What is the net width of the plate along path 1-2-3-4?
11.500 in
12.500 in
13.063 in
14.063 in
Question 26
Situation 10. The top plate of a bolted single lap connection is shown in Figure 8. The plates are 15-in by 0.5-in made of A36 steel (Fy = 36 ksi, F, 58 ksi) and the bolts have a diameter of % in.
Which of the following gives the service load capacity of the plate? Assume that the dead load and the live load are 20% and 80% of the service load respectively.
100 kips
160 kips
190 kips
240 kips
Question 27
Situation 11. The frame shown in Figure 9 is braced against joint translation (sidesway). The girders are made of W24x103 (/=3000 inâ´) while the columns are made of W21x93 (I=12070 inâ´) both with A992 steel. For the weak axis, each column is braced against translation at both ends. Use E = 29,000 ksi.
What is the restraint G at the top of column AB?
1.04
1.21
1.66
1.86
Question 28
Situation 11. The frame shown in Figure 9 is braced against joint translation (sidesway). The girders are made of W24x103 (/=3000 inâ´) while the columns are made of W21x93 (I=12070 inâ´) both with A992 steel. For the weak axis, each column is braced against translation at both ends. Use E = 29,000 ksi.
What is the effective length of column AB?
10.5 ft
12.0 ft
13.5 ft
15.0 ft
Question 29
Situation 11. The frame shown in Figure 9 is braced against joint translation (sidesway). The girders are made of W24x103 (/=3000 inâ´) while the columns are made of W21x93 (I=12070 inâ´) both with A992 steel. For the weak axis, each column is braced against translation at both ends. Use E = 29,000 ksi.
What is the effective length factor K of column AB?
0.70
0.80
0.90
1.00
Question 30
Situation 12. Consider the bolt group shown in Figure 10.
What is the value of the horizontal eccentric shear force in the most stressed bolt?
4.80 kips
7.20 kips
9.60 kips
14.60 kips
Question 31
Situation 12. Consider the bolt group shown in Figure 10.
What is the value of the vertical eccentric shear force in the most stressed bolt?
4.80 kips
7.20 kips
9.60 kips
14.60 kips
Question 32
Situation 12. Consider the bolt group shown in Figure 10.
Which of the following gives the maximum shear force in the bolt group?
9.85 kips
15.52 kips
16.28 kips
21.80 kips
Question 33
Situation 13. A 400-mm by 750-mm concrete is reinforced with steel having an area of 3200 mm² at a depth of 700 mm. The compressive strength of concrete is 28 MPa while the yield strength of steel is 420 MPa.
How far from the top fiber is the neutral axis of the section?
141.18 mm
166.09 mm
195.04 mm
375.00 mm
Question 34
Situation 13. A 400-mm by 750-mm concrete is reinforced with steel having an area of 3200 mm² at a depth of 700 mm. The compressive strength of concrete is 28 MPa while the yield strength of steel is 420 MPa.
What is the normal strain in the reinforcing steel?
0.00260
0.00777
0.00964
0.01187
Question 35
Situation 13. A 400-mm by 750-mm concrete is reinforced with steel having an area of 3200 mm² at a depth of 700 mm. The compressive strength of concrete is 28 MPa while the yield strength of steel is 420 MPa.
Which of the following gives the design moment strength of the section?
654 kN-m
747 kN-m
762 kN-m
774 kN-m