Which of the following would be the more likely cause of an Allison hydromechanical transmission that downshifts when the accelerator pedal is at full travel?
A. governor adjustment
B. loose modulator can
C. improper oil level
D. all of the above
Answer: B
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Thermodynamic steam traps are most often used to drain _____ lines.
a. process b. condensate c. low-pressure d. tracer
____ study climate variations over long time periods
A) Climatologists B) Physical meteorologists C) ?Forecasters D) Environmental meteorologists
Let R denote the resistance of a resistor that is selected at random from a population of resistors that are labeled 100 ?. The true population mean resistance is src="https://sciemce.com/media/4/b4de54865f105c8f25b.jpg" class="w-image" /> are random with
=100 ?, and the population standard deviation is 
=2 ?. The resistance is measured twice with an ohmmeter. Let 
denote the measured values. Then 
, where 
are the errors in the measurements. Suppose that 
and 
= 1 ? . Further suppose that 
are independent.
When refrigerant lines are installed under a poured concrete slab, they are protected from physical harm:
A) By a covering of tar and pitch B) By the foam insulation around the refrigerant lines C) By using a chase or conduit D) By the concrete itself