Photoelectric switches consist of three basic components: the transmitter, the receiver, and the switching device.
Answer the following statement true (T) or false (F)
True
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The ____ is a thin membrane of lipid and protein. It controls the transport of molecules in and out of the cell.
A. plasma membrane B. nucleus C. ribosome D. endoplasmic reticulum
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A pozzolanic material used in making very high-strength concrete is _____
a. fly ash b. hydrated lime c. silica fume d. diatomaceous earth
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The ability of material to “absorb” magnetic flux is known as ____.
a. malleability b. ductility c. permeability d. reflectivity
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The basic ____ rectifier circuit requires two diodes and a center-tapped transformer.
A. half-wave B. full-wave C. bridge D. filter
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