A relay designated as a 3PDT-SB relay _____
A) has three N.O. (normally open) contacts
B) has three N.O. (normally open) and three N.C. (normally closed) contacts
C) is a single-throw type
D) is a double-break type
B
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Which of the following is not an erosion-control technique for Class II land?
A) crop residue management B) minimum tillage C) crop rotations D) irrigation
A sample of 100 components is drawn, and a 95% confidence interval for the proportion defective specifies this proportion to within ±0.06. To get a more precise estimate of the number defective, the sample size will be increased to 400, and the confidence interval will be recomputed. What will be the approximate width of the new confidence interval?
i. ±0.015 ii. ±0.03 iii. ±0.06 iv. ±0.12 v. ±0.24
What is absolute 0?
A) The hottest possible temperature where matter is indistinguishable from energy B) The theoretical starting temperature for quantum physics experiments which is derived by measuring the average rotational velocity of the molecules C) The coldest temperature possible where all molecular motion stops D) The freezing point of water on an absolute temperature scale
Vertical lines going from top to bottom are referred to as which of the following?
A) Pressure line B) Saturation curve C) Enthalpy D) Constant quality