Retempering of mortar means ______.
A) adding lime to mortar.
B) adding Portland cement to mortar.
C) adding sand to mortar.
D) adding water to mortar.
D) adding water to mortar.
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____________________ change resistance in response to movement.
Fill in the blank(s) with the appropriate word(s).
What is meant by live load chilling?
A) The thermal storage system is being recharged for later use B) The load is met by water chiller operation, providing cooling as needed C) Neither the chiller nor the thermal storage system are required because the load is cooling itself in economizer mode D) The load is met by the thermal storage system
Most ROM ICs have tri-state outputs that:
A) permit the connection of many ROM chips to a common data bus. B) allow for three separate data input lines. C) allow the bidirectional flow of data between the bus lines and the ROM registers. D) isolate the registers from the data bus during read operations.
An ampere-turn is a unit of ________
A) permeability B) reactance C) resistance D) magnetomotive force (mmf)