Hydraulic systems work on the principle of:
a. Fast moving fluid in loosely sealed components
b. Using fluid to transfer energy in tightly sealed components
c. Using compressed fluid to store energy
d. Using an air/oil mixture to transfer energy
B
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Lockout/tagout requirements are set forth by _____.
a. the US Department of Energy b. OSHA c. ASME d. the NEC®
Insured costs for occupational injuries or deaths include _____.
a. pensions for dependents b. costs of investigations c. cost to train replacement workers d. first-aid expenses
A circuit uses 216.2 watts and draws a current of 1.88 amps. Find the resistance. Express the answer to the nearer hundredth ohm.
and 
Fill in the blank(s) with the appropriate word(s).
A discrete-time system is described by y[n] + 1.8y[n ? 1] + 1.2y[n ? 2] = x[n]. Is it BIBO stable?
What will be an ideal response?