Which of the following is one of the basic characteristics of DRAMs?
A) DRAMs have a broader "dynamic" storage range than other types of memories.
B) DRAMs must have a constantly changing input.
C) DRAMs must be periodically refreshed in order to retain data.
D) DRAMs are simpler devices than other type memories.
C
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An advantage to the community that deconstruction offers is ________
A) It increases donations of repurposed materials to local charitable organizations B) It decreases labor expense for the contractor C) It decreases reconstruction expense for the homeowner D) It increases materials headed for local landfills
____________________ is electrical pressure.
Fill in the blank(s) with the appropriate word(s).
Sheet metal screws are also known as _________
A) Hardened screws B) Self tapping screws C) Machine screws D) None of these
What is the MA of a hydraulic jack with a 1-inch pump piston and a 6-inch output piston.
A. 35:1 B. 34:1 C. 36:1 D. 33:2