Which of the following statements is correct when referring to large refrigerant or nitrogen tanks?
A. The protective cap must be on when the tank is not in use.
B. Safety goggles or glasses must be worn when moving the tank.
C. Large tanks should not be carried, they should be secured to an approved cart.
D. All of the above are correct.
Answer: D
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The number of bytes downloaded per second on an information channel has mean 
and standard deviation 
. Among the factors influencing the rate is congestion, which produces alternating periods of faster and slower transmission. Let X represent the number of bytes downloaded in a randomly chosen five-second period.
a. Is it reasonable to assume that 
? Explain.
b. Is it reasonable to assume that 
? Explain.
The USDA does not recommend the consumption of meat and meat products in its Food Pyramid
Indicate whether the statement is true or false
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A. feedback B. feedforward C. ratio D. proportional E. derivative
All mechanical seals have a set of _____, one that rotates and one that is stationary
a. springs b. cartridges c. primary faces d. O-rings