PICAT/ASVAB EXAM COMBINED LATEST COMPLETE EXAM QUESTIONS WITH CORRECT ANSWERS 2025

PICAT/ASVAB EXAM COMBINED LATEST COMPLETE EXAM QUESTIONS WITH CORRECT ANSWERS 2025 What is the principle of the conservation of mechanical energy? The principle of the conservation of mechanical energy states that the total mechanical energy (PE+KE) of an object remains constant as long as no other force is applied. A circuit with only one path is a(n) ________ circuit. Series What are the 2 types of transistors? PNP and NPN What does an electrical ground do? a ground provides a low-resistance path to guide excess electrical energy away from panels and loads, to protect them in the case of lightweight or circuit failure Identify battery symbol battery symbol if one battery's terminal supplies greater voltage than that of another battery, the first battery terminal has more _________ electrons (or negative charge) In North America, AC is delivered at __________Hz 60 Identify motor symbol motor symbol Identify capacitor (or condensor) symbol capacitor (or condensor) What are the two advantages of a four-valve cylinder head over a two-valve cylinder head? higher engine operating speeds; more complete combustion of the air-fuel mixture What function does the distributor perform? The distributor is responsible for timing the ignition spark and distributing it to the correct cylinder. What does an intake manifold do? An intake manifold is the structure that delivers air to the intake ports of the engines cylinders Brakes work through ______ pressure. hydraulic (or fluid) Define viscosity The viscosity of a liquid is its resistance to flow; liquids with higher viscosity are thicker and flow less easily. OHV stands for _____ overhead valve the AC electricity produced by the alternator is converted to DC by the _______ rectifier (or rectifier bridge) What fastener is used to create a semipermanent assembly? Rivet Why must welders wear helmets and protective clothing? for protection from ultraviolet light What type of saw is embedded within a table and has a rotating blade? a table saw, which is a type of circular saw What type of saw is used for cutting metal? Hacksaw An adjustable wrench is also called a(n) ______ crescent wrench What is the difference between a tubular spirit level and a bullseye spirit level? A tubular spirit level is useful for measuring levelness in one dimension, whereas a bullseye spirit level can measure the levelness of a plane in all directions. Instead of using a wrench to loosen a fastener in a tight space, a worker could use a ______ with a _____ socket; ratchet handle atomic number the number of protons in the nucleus of an atom atomic mass the weighted average of the masses of the isotopes of an element Why are the four planets closest the the Sun called terrestrial planets? The composition of these planets is similar to that of Earth 1 kilometer is how many times larger than 1 millimeter? 1,000,000 (1 million) times larger 1 mm x 1,000 = 1 meter 1 meter x 1,000 = 1 km In chemical reactions, the molecules and atoms entering the reaction are called ______, and those resulting from the reaction are called ______ reactants; products Name the three major types of clouds stratus, cirrus, cumulus Elements whose outer shells are completely filled with electrons are ______ noble gases In females, the sex chromosomes are _______ and are designated by the letters ____. In males, the sex chromosomes are _____ and are designated by the letters _____ (females) homozygous, XX (males) heterozygous; XY When an acid is combined with a base, they produce __________ water and a salt When light reflects off a surface, the angle of __________ is equal to the angle of ______________ incidence; reflection ( or reflection; incidence) What is the common name for hypertension? high blood pressure When one atom bonds to another atom by "borrowing" an electron from it, a(n) ______ bond is formed. ionic Name the 4 major components of blood. plasma, red blood cells, white blood cells, platelets The central nervous system is composed of the ____ and the _____. brain; spinal cord What do white blood cells do? fight infection Identify the value and abbreviation of this metric system prefix: deci base times 0.1 ; d In general, _____ carry oxygenated blood, while _____ carry deoxygenated blood. arteries; veins Define capillaries The smallest blood vessels, which deliver oxygenated blood to the body's tissues and carry away deoxygenated blood What is the common name for the cranium? skull Identify the value and abbreviation of this metric system prefix: hecto base times 100; h A lunar eclipse occurs when the ____ passes between the ____ and the S