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USMC MECHANICAL COMPREHENSION ASVAB PRACTICE TEST
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Gravity
Terms in this set (16)
Identify the correct vector/scalar classification.
acceleration: vector
Choose the true statement.
Jerk is the derivative of acceleration
A car is traveling at a velocity of 58 m/s. What is the velocity in MPH?
130 mph
Two gears are in mesh. The first gear is rotating at 60 rpm and has 23 teeth. The second gear is rotating at 5 rpm. How many teeth does the second gear have?
276 teeth
How many square feet of tarp is required to completely cover the roof of a 20×15 foot building? The roof has a single peak running along the 20 foot axis and the roof is at a 45 degree angle.
450
How much work is performed lifting in order to lift a 50.0 kg block 7.00 meters? Use g=9.81 m/s^2
3430 N*m
What are the units for the coefficient of friction?
Unitless
What is the density of a brownie the shape of a cube weighing 15 grams measuring 5 cm on a side?
0.12 g/cm^3
If a 180 RPM synchronous motor and gear train rated for 60Hz is run on 50Hz, what speed will the output shaft have?
150 RPM
A workman is digging a hole in the ground. The final size of this hole will be 60 inches deep and 30 inches in diameter. How much material will the workman remove?
24.5 cubic feet
In this pulley system, what is the minimum force (applied in the direction of the red arrow) required to move the weight upward?
501 lbs
How is the coefficient of friction calculated?
It is the friction force divided by the normal force
If at Location A pure water boils at 212 degrees Fahrenheit and at Location B the same water boils at 80 degrees Celsius, what can you deduce about the two locations?
Location A is at sea level and Location B is significantly higher.
If a cubic yard of sand weighs 1.5 (US) tons, how many 11x6x7 inch ammo boxes can be completely filled with 1 ton of sand?
67
In a circuit, the current at a location is 4 amps and the voltage is 9 V. What is the Power at this location of the circuit?
67
Given two pieces of steel tubing, one 8 feet long, the other 6 feet long, both joined at one end at an angle of 90 degrees, how long would a third piece need to be to connect the two free ends?
10 feet
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