During the Last Four Decades

question 58

Multiple Choice

During the last four decades,

• A) the total expenditures of Americans on health care have been relatively constant.
• B) the share of health-care expenditures covered by a third party (either the government or an insurance company) has increased substantially.
• C) the prices of health-care services have risen but not as rapidly as the general level of prices.
• D) health-care providers have lowered prices in response to the rapid increase in medical technology.

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Definitions:

On-Delay Timer

An electromechanical relay with contacts that change state a predetermined time period after the coil is energized; the contacts return to their shelf state immediately on de-energization of the coil; also, a programmable logic controller instruction that emulates the operation of the electromechanical on-delay timer.

Ladder Rung

A horizontal section of a ladder logic diagram, representing a specific logic operation in PLC programming.

Off-Delay Timer

An electromechanical relay with contacts that change state a predetermined time period after power is removed from its coil; on re-energization of the coil, the contacts return to their shelf state immediately; also, a programmable logic controller instruction that emulates the operation of the electromechanical off-delay relay.