A step-up transformer will increase ________ and decrease ________
A) power, current B) current, impedance
C) voltage, power D) voltage, impedance
D
You might also like to view...
The most important reason for providing ties in a concrete wall is to
A) prevent the buckling of longitudinal bars in the wall. B) allow the formwork to be tied to the longitudinal bars in the wall. C) increase the shear strength of the wall. D) increase the compressive strength of the wall. E) Ties are generally not provided in a concrete wall.
To calculate concrete volume, structures can usually be divided into two or more _____.
a. volume units b. physical levels c. forming types d. geometric shapes
Two thermometers are calibrated by measuring the freezing point of glacial acetic acid, which is 16.6°C. Equal numbers of measurements are taken with each thermometer. The result from the first thermometer is 16.4 ± 0.2°C and the result from the second thermometer is 16.8 ± 0.1°C.
a. Is it possible to tell which thermometer is more accurate? If so, say which one. If not, explain why. b. Is it possible to tell which thermometer is more precise? If so, say which one. If not, explain why.
A water-source system that gets its water from a well and does not reuse the water is:
A) A closed-loop system. B) Considered a hybrid between an open- and a closed-loop system. C) Called a quasi-closed loop because it still uses a circulating pump. D) An open-loop system.