Passage V
A store sign is to be suspended from a 1-meter-long horizontal rod. The rod is supported by a cable at one end and a bracket at the other (see Figure 1).
The sign's weight, W; the angle, 
, between the cable and the rod; and the distance, d, between the centerline of the sign and the wall will each affect the tension, T, in the cable. The cable will break if T exceeds the cable's breaking force, F.
Table 1 lists F, in newtons (N), for stainless steel cable of various diameters. Figure 2 contains graphs of T (in N) versus for various W (in N), where d= 0.50 m. Figure 3 contains graphs of T versus for various d, where W=100N.
28. Based on Table 1 and Figure 2, for d = 0.50 m and θ = 10°, can the 1.500 mm diameter stainless steel cable support a sign with W = 300 N without breaking?
Your Answer is
Correct Answer is H
Explanation
It can be seen in table 1 that when d is 1.5 mm, the maximum force it can withstand is 531 N;
As can be seen in figure 2, the line of 300 N is in When the abscissa is 10, the ordinate T is 1000, much larger than 531 N, so it cannot be tolerated