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Sample Practice Test Questions
What type of load is sudden and for a relatively short duration?
impact load
A concentrated load acts on a relatively small area of a structure, a static uniformly distributed load doesn't create specific stress points or vary with time, a dynamic load varies with time or affects a structure that experiences a high degree of movement, an impact load is sudden and for a relatively short duration and a non-uniformly distributed load creates different stresses at different locations on a structure.
The firing order of the cylinders in an engine can be found by:
observing the order in which the intake valves open
The firing order of the cylinders in an engine is different than the cynlinder numbers and can be found by observing the order in which the intake valves open.
The force required to initally get an object moving is __________ the force required to keep it moving.
higher than
For any given surface, the coefficient of static friction is higher than the coefficient of kinetic friction. More force is required to initally get an object moving than is required to keep it moving. Additionally, static friction only arises in response to an attempt to move an object (overcome the normal force between it and the surface).
Minerals, vitamins, and fiber are:
micronutrients
Minterals, vitamins, and fiber are micronutrients while proteins, carbohydrates, and fats are macronutrients.
Solve for y:
y2 - 5y - 6 = 0
The first step to solve a quadratic equation that's set to zero is to factor the quadratic equation:
y2 - 5y - 6 = 0
(y + 1)(y - 6) = 0
For this expression to be true, the left side of the expression must equal zero. Therefore, either (y + 1) or (y - 6) must equal zero:
If (y + 1) = 0, y must equal -1
If (y - 6) = 0, y must equal 6
So the solution is that y = -1 or 6
Sound travels fastest through which of the following media?
metal
The speed of a sound wave will vary with the medium. Sound travels fastest through media that has particles that are very close together, like metal. Thus, it travels faster through water than through air and doesn't travel at all through a vacuum (there are no particles in empty space to vibrate).