A dirty air filter would likely cause which of the following symptoms?
A) High superheat B) High condenser pressure
C) Low evaporator pressure D) Low subcooling
C
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Which of the following types of sensor would be associated with a Wheatstone bridge circuit?
A. variable capacitance B. Piezo resistive C. Piezo-electric D. thermistor
A truck differential carrier is noisy when cornering. Which of the following would be the more likely cause?
A. pinion bearings worn B. low axle lube level C. damaged differential pinion gears D. worn carrier bearings
In the bubbler system, a(n) ____________________ is used to adjust the maximum air flow.
Fill in the blank(s) with the appropriate word(s).
Problem 1.49 A steel plate 14 in. thick is embedded in a concrete wall to anchor a high-strength cable as shown. The diameter of the hole in the plate is 34 in., the ultimate strength of the steel used is 36 ksi and the ultimate bonding stress between plate and concrete is 300 psi. Know¬ing that a factor of safety of 3.60 is desired when P = 2.5 kips, determine (a) the required width a of the plate, (b) the minimum depth b to which a plate of that width should be embedded in the concrete slab. (Neglect the normal stresses between the concrete and the end of the plate.)
