A 5.2 M? resistor, 1.2 M? resistor and 1 M? resistor are connected in parallel across a 15 V source. What is the total current if the 1.2 M? resistor opens?
A) 2.41 ?A B) 17.9 ?A C) 2.88 ?A D) 12.5 ?A
B
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The limits of accuracy on the dimensions given on a drawing are called ____.
A. bounds B. limits C. extents D. tolerances
How many watts are consumed by a starter motor if it draws 150 amperes at 10 volts?
A) 150 watts B) 1500 watts C) 15 watts D) 15000 watts
The humidity sensor is used to adjust what components?
A) The cooling coil face and air-mixing dampers B) The heating coil face and bypass dampers C) The cooling coil face and bypass dampers D) The heating coil face and air-mixing dampers
Why do solenoid-type valves pose a problem for some types of burners?
A) Solenoids create too much pressure when closing. B) Solenoids' seal is not strong. C) Solenoids open and close too quickly. D) Solenoids open and close too slowly.