When the 8085 accesses data in an I/O device using IN or OUT instructions, it is using
A) memory mapped I/O. B) software controlled I/O.
C) serial I/O. D) standard I/O.
D
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A mobile crane’s center of gravity _____.
a. is always at the center of its rotation b. is always at the boom attachment point c. must remain to the operator’s back at all times d. moves as its configuration changes
When preparing to measure pipe jacket for cutting a hole for a penetration, you should make sure that _____.
a. you know the thickness of insulation b. you know the circumference of the insulated pipe c. you have offset compound shears to make the hole d. the jacket is snug and positioned so that the lap is aligned with the previous jacket
The most effective hearing protection is provided by _____.
a. earmuff-type hearing protectors b. rolled-up cotton balls c. reusable earplugs d. disposable earplugs
Which of the following is true of drain wires in fire alarm and instrumentation cable?
a. They should be twisted. b. They should be No. 24 AWG or smaller. c. Only one end is typically grounded. d. They should be taped back on both ends.