What part of an atom has a positive charge?
A. quark
B. neutron
C. proton
D. electron
Answer: C
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It is necessary to restart a motor after it has been stopped by a three-wire control circuit with ____ protection.
a. high-voltage b. high-temperature c. low-resistance d. low-voltage
The house mouse was originally a wild field animal
Indicate whether the statement is true or false
Which of the following statements is correct in regard to poured-in-place concrete?
A. Poured-in-place concrete is essentially the same as tension concrete. B. Poured-in-place concrete is poured at a plant or shop and shipped to the jobsite for erection C. Poured-in-place concrete is significantly stronger than precast reinforced concrete. D. Poured-in-place concrete is usually poured in wooden forms as a part of the structure.
Frequency, amplitude, displacement, velocity, acceleration, and elapsed time are qualities used to measure _____
A) alignment B) efficiency C) load impact D) vibration