What happens when room temperature soda is poured into a glass of ice?
A. The ice gets colder.
B. The ice melts because it is giving up the "cold" to the soda.
C. The ice melts because it is absorbing heat from the soda.
D. The ice melts because the soda is colder than the ice.
Answer: C
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Answer the following statement(s) true (T) or false (F)
1. A true three-phase transformer contains six separate transformers wound on a single core. 2. The disadvantage for three-phase transformers is that if a single transformer should fail, the entire transformer must be repaired or replaced. 3. Delta connections should be checked for proper polarity after applying power. 4. A voltmeter is a low-impedance device. 5. Three-phase transformer connections are often used to supply single-phase loads, which tend to unbalance the system.
The worm gear produces more heat because:
A. Has higher gear ratios. B. It is difficult to lubricate. C. It is usually mounted close to a motor. D. The gears slide against each other.
?A Sydney tube is often paired with a parabolic reflector fixed behind each tube.
Answer the following statement true (T) or false (F)
A cable routing assembly is composed of single or connected multiple channels as well as associated fittings, forming a structural system to _____ communications wires and cables, optical fiber and data cables; and Class 2, Class 3, and Type PLTC cables; and power-limited fire alarm cables in plenum, riser, and general-purpose applications.
What will be an ideal response?