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ASTB Mechanical Exam Questions and
Answers 100% Pass
What is Charles's Law? - Answer✔V1/T1 = V2/T2 (states how gases tend to expand when
heated)
What is formula for linear speed? - Answer✔linear speed = rotational speed * radius
What are non-ferrous metals? - Answer✔Alloys or metals that do NOT contain any iron (e.g.
copper is non-ferrous)
What is it called when Plasma turns into Gas? - Answer✔recombination (also deionization)
What is a diode? - Answer✔An electrical device that allows current to flow through it in only
one direction.
Helical gears are defined by what feature? - Answer✔Slanted teeth.
What is the mechanical advantage of a Wheel and Axle? - Answer✔MA of wheel and axle =
radius of wheel radius of axle
What is one of the formulas for Power? - Answer✔P = V*I
P = V^2
1
, ©JASONMcCONNELL 2025 ALL RIGHTS RESERVED
or
P = I^2 * R
(Where P = power, V = voltage, and I = current)
What is the third law of thermodynamics? - Answer✔The value of entropy is zero at absolute
zero temperature.
What is Ohm's Law? - Answer✔Current = Voltage/Resistance
What is an inductor? - Answer✔An electrical component that stores current.
- uses relationship between electricity and magnetism to resist changes in current
- they resist AC currents, but not DC
What is the first law of thermodynamics? - Answer✔Energy cannot be created or destroyed
What is an alternator? - Answer✔An electrical generator that converts mechanical energy into
electrical energy in the form of an alternating current.
What is current calculated as? - Answer✔Current = charge / time
When asking for final velocity for a given distance, what formula should you use? -
Answer✔Vfinal^2 = Vinitial^2 + 2ad
What are the formulas for Fn and Fg? - Answer✔Fn = m*g*cos(theta)
Fg = m*g*sin(theta)
How much resistance does a superconductor have? - Answer✔Zero resistance
2
ASTB Mechanical Exam Questions and
Answers 100% Pass
What is Charles's Law? - Answer✔V1/T1 = V2/T2 (states how gases tend to expand when
heated)
What is formula for linear speed? - Answer✔linear speed = rotational speed * radius
What are non-ferrous metals? - Answer✔Alloys or metals that do NOT contain any iron (e.g.
copper is non-ferrous)
What is it called when Plasma turns into Gas? - Answer✔recombination (also deionization)
What is a diode? - Answer✔An electrical device that allows current to flow through it in only
one direction.
Helical gears are defined by what feature? - Answer✔Slanted teeth.
What is the mechanical advantage of a Wheel and Axle? - Answer✔MA of wheel and axle =
radius of wheel radius of axle
What is one of the formulas for Power? - Answer✔P = V*I
P = V^2
1
, ©JASONMcCONNELL 2025 ALL RIGHTS RESERVED
or
P = I^2 * R
(Where P = power, V = voltage, and I = current)
What is the third law of thermodynamics? - Answer✔The value of entropy is zero at absolute
zero temperature.
What is Ohm's Law? - Answer✔Current = Voltage/Resistance
What is an inductor? - Answer✔An electrical component that stores current.
- uses relationship between electricity and magnetism to resist changes in current
- they resist AC currents, but not DC
What is the first law of thermodynamics? - Answer✔Energy cannot be created or destroyed
What is an alternator? - Answer✔An electrical generator that converts mechanical energy into
electrical energy in the form of an alternating current.
What is current calculated as? - Answer✔Current = charge / time
When asking for final velocity for a given distance, what formula should you use? -
Answer✔Vfinal^2 = Vinitial^2 + 2ad
What are the formulas for Fn and Fg? - Answer✔Fn = m*g*cos(theta)
Fg = m*g*sin(theta)
How much resistance does a superconductor have? - Answer✔Zero resistance
2
