Management has carefully measured the standard deviation of the demand of a product and plans to use this to calculate the level of safety stock. If they keep one Standard Deviation of safety stock then the expected service level should be approximately:
A) 90%. B) 100%. C) 35%. D) 15%. E) 85%.
E
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For speech intelligibility in spaces where this is a primary requirement–churches, auditoriums, etc.–the background sound level should be at least how many dB below the voice level?
A) 15 dB. B) 5 dB. C) 10 dB.
Which of the following is not part of a cylinder head?
A. Camshaft B. Connecting rods C. Valves D. Rocker arms
At its most basic, a control requires:
A) A thermostat and a motor. B) A voltage source, a path, and a load. C) A transformer, a relay, and a motor. D) A sensor, an actuator, and a linkage.
An LTI continuous-time system is described by the differential equation 2y’(t)+5y(t)=x’(t). Which is the correct description of this systems frequency response?
(a) The system attenuates low frequencies more than high frequencies. (b) The system attenuates high frequencies more than low frequencies. (c) The system has the same effect on all frequencies.