To check the temperature leads of an electronic thermometer for low temperature, they should be stirred in a container of ____.
A. crushed ice and water with 1/2 teaspoon of salt added
B. crushed ice and water with 1/2 teaspoon of sugar added
C. crushed ice and pure water
D. cube ice and pure water
Answer: C
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The essential piece of information A/D personnel need before beginning lattice-boom assembly is _____.
a. the model and length of the boom required for the job b. the maximum load capaity of the crane c. whether the crane can operate 360 degrees d. whether the crane’s counterweight is extendable
A pig exposing its belly is _____
a. being submissive b. feeling content with the situation c. showing loyalty d. reinforcing its dominance
Answer the following statement(s) true (T) or false (F)Answer the following statement(s) true (T) or false (F)Answer the following statement(s) true (T) or false (F)Answer the following statement(s) true (T) or false (F)Answer the following statement(s) true (T) or false (F)Answer the following statement(s) true (T) or false (F)
1. Two-phase motors use the nameplate rating instead of the values shown in the table for full-load currents. 2. When the termination temperature rating is not listed or known, for circuits rated at 100 amperes or less, or for #14 AWG through #1 AWG conductors, the ampacity of the wire, regardless of the temperature rating, must be selected from the 60°C column 3. Starter sizes are rated by motor type, horsepower, and connected voltage. 4. All heater sizes are chosen from a chart supplied by the starter manufacturer 5. The size of the short-circuit protective device is determined by Section 430.62(A).
The continuous change of both amplitude and polarity of the magnetic field causes currents to be induced into the metal core material. These currents are called ____ currents.
A. induction B. electromagnetic C. relay D. eddy