Answer the following statement(s) true (T) or false (F)
Automatic switches can start a load without any warning.
ANSWER: True
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Sealed-beam headlights have an inner glass or plastic reflector surface that is sprayed with an aluminum reflective material.
Answer the following statement true (T) or false (F)
The two best known national green certification programs are _________.
A. LEED and NAHB B. Green Globes and Green Guard C. Energy Star and Green Key D. Green Seal and Mexico Regulation
The formula for diametral pitch is ____.
A. DP = PD/M B. DP = N/PD C. DP = PD/N D. DP = M/PD
PROBLEM 2.44 The rigid bar AD is supported by two steel wires of -in. diameter (E ? 29 × 106 psi) and a pin and bracket at A. Knowing that the wires were initially taut, determine (a) the additional tension in each wire when a 220-lb load P is applied at D, (b) the corresponding deflection of point D.
