____ is used to accelerate or decelerate a motor over some period of time.
a. Coasting
b. Damping
c. Driving
d. Ramping
d. Ramping
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One cubic meter of an ideal gas at 600 K and 1000 kPa expands to five times its initial volume as follows:
What will be an ideal response?
(a) By a mechanically reversible, isothermal process.
(b) By a mechanically reversible, adiabatic process.
(c) By an adiabatic, irreversible process in which expansion is against a restraining pressure of 100 kPa.
For each case calculate the final temperature, pressure, and the work done by the gas. Take 
= 21 
Flexible round duct comes in sizes up to about ____________________ in. in diameter.
Fill in the blank(s) with the appropriate word(s).
The currents used with A-CAC electrodes compared to shielded metal arc welding (SMAW) electrodes of
the same size are _____. a. much lower b. much higher c. slightly higher d. slightly lower
In a two-stage regulator, the first spring ____.
A. is adjusted like other regulators B. can be larger, allowing a greater flow C. is preset at the factory to reduce pressure to 225 psig D. has to control a maximum pressure of only around 225 psig