The noise margin for a standard TTL gate is
A) 1.0 V. B) 0.4 V. C) 1.4 V. D) 0.8 V.
B
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The R-value of a 2-in.-thick material is 4.0. What is the R-value of the same material if its thickness is 1 in.?
A) 8.0 B) 1.0 C) 0.5 D) 6.0 E) None of the above
Circularity can be applied to ____.
A. cylindrical B. conical C. spherical D. both b and c E. all of the above
Skin effect and induction change the resistance in alternating-current (ac) circuits, therefore resistance of a conductor is ____.
A. slightly lower in an ac circuit B. reciprocally lower in a dc circuit C. slightly higher in an ac circuit D. reciprocally higher in a dc circuit
Surveyors sometimes use ____ for checking elevations at selected points on a parcel of property.
A. grid surveys B. field surveys C. interval surveys D. plot surveys