2024 ABYC Marine Electrical Correct Questions With Correct Solutions!

___ through circuits on a boat is perhaps the most common problem with electrical circuitry. A Overly high rates of current flow B Resistance to heat C Unrestricted pressure D Resistance to electrical current flow - ANSWER D Resistance to electrical current flow When using Ohm's law, if any two of the three values are known, the third value can be calculated by ___. A multiplication or division B addition or subtraction C taking the square root of the sum of the two values D finding the inverse of the highest known value - ANSWER A multiplication or division If the voltage in a circuit is 12 volts and the resistance is 3 ohms, Ohm's law can be used to find that the rate of flow is ___ amps. A 9 B 6 C 4 D 2 - ANSWER C. 4 If resistance decreases and the voltage remains constant in a circuit, then the amperage will ___. A decrease B increase C remain constant D be canceled out - ANSWER B increase The unit of measure for power is the ___. A watt B amp C volt D ohm - ANSWER A watt A microwave oven with a wattage of 1.2 KW (1,200 watts) and a 120 VAC will draw ___ amps. A 100 B 60 C 20 D 10 - ANSWER D 10 Cranking motor (engine starter) circuits are not required to have ___. - ANSWER overcurrent protection In a ___ circuit, there is only one path allowed for electrical flow. A parallel B simple C series D starter - ANSWER C series In a series circuit, the amperage (current) is ___. A the same everywhere it is measured B gradually decreased as the circuit runs farther from the power source C lowest at (or very close to) the power source D gradually increased as the circuit runs farther from the power source - ANSWER the same everywhere it is measured In all circuits, voltage is lost as it travels through the circuit, which is commonly referred to as ___. A electrical resistance B voltage drop C short circuiting D open circuiting - ANSWER B voltage drop The most common type of circuit fault is a(n) ___. A burnt-out circuit B intercircuit short C open circuit D internal short - ANSWER C open circuit (Really should be Unwanted Open) The ___ is the most dangerous type of short circuit.