What material are most of the wires in your house made of?
A) Copper B) Steel C) Silver D) Gold
A
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Answer the following statement(s) true (T) or false (F)
1. The wound rotor motor has a lower starting torque per amp of starting current than any other type of three phase motor. 2. The wound rotor motor can be started in multiple steps to provide smooth acceleration from 0 RPM to maximum RPM. 3. Small wound rotor motors are often controlled manually by a three-pole make-before-break rotary switch. 4. Starting circuits generally employ resistors of a lower wattage value than circuits that are intended for speed control. 5. Capacitive reactance is proportional to the rotor frequency.
All electrical equipment and conductors are to be considered ____________________ until determined to be otherwise by testing methods.
Fill in the blank(s) with the appropriate word(s).
Convert 40° Fahrenheit to Celsius
A) 40/1.8 = 22.2; 22.2 - 32 = -10°C B) 40 + 40 = 80; 80 × 1.8 = 144; 144 - 40 = 104°C C) 40 - 32 = 8; 8/1.8 = 4.4°C D) 40 - 32 = 8; 8 × 1.8 = 9.6°C
Why must a heat pump indoor coil be able to withstand higher pressures than a regular air conditioning evaporator coil?
What will be an ideal response?