Which of the following is not a seasonal job?
A) weekend program leader
B) playground leader
C) craft specialist
D) recreation manager
D
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Hand signals for hoisting equipment can only be provided by qualified signal persons and _____.
a. ironworkers b. supervisors c. stationary engineers d. riggers
During the Civil War
A. relations between the Union and Canada were at times very poor. B. Southerners were unable to use Canada as a base from which to attack the Union. C. the Union and Canada became very close allies. D. France made an effort to regain control of Canada. E. the British army in Canada mobilized for intervention.
For large radii, the radius dimension line can be broken to show that it not true length
Answer the following statement true (T) or false (F)
The electrodynamic shaker of Figure P18.49 is used to perform vibration testing of an electrical connector. The connector is placed on the test platform (with mass m), and it may be assumed to have negligible mass when compared to the platform. The test consists of shaking the connector at the frequency ? = 2? × 100 rad/s. Given the parameter values B = 1,000 Wb/m2, l = 5 m, k = 1,000 N/m, m = 1 kg, b = 5 N-s/m, L = 0.8 H, and R = 0.5 ?, determine the peak amplitude of the sinusoidal voltage VS required to generate an acceleration of 5g (49 m/s2).
