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ASVAB MECHANICAL COMPREHENSION FULL PART 2 EXAM
QUESTIONS
Actual Qs and Ans - Expert-Verified Explanation -Guaranteed passing score -11 Questions and Answers
-Format: Multiple-choice / Flashcard
Question 1: Normally, atmospheric pressure is approximately 23.2 psi
Answer:
12.7 psi Normally atmospheric pressure(the average atmospheric pressure at sea level) is 14.7 psi Question 2: If a ramp measures 6 feet in length and 3 feet in height, an object weighing 200 pounds requires how much effort the move using the ramp?
Answer:
300 pounds The formula to determine mechanical advantage of an incline plane is Length of Ramp ÷ Height of Ramp= Weight of Object ÷ Effort .
Question 3: A simple pulley gives a mechanical advantage of
Answer:
1 A simple pulley gives no mechanical advantages, although it does make work easier by spreading out the work needed over several tries. The mechanical advantage is 1
Question 4: The force produced when two objects rub against each other is called
Answer:
Friction
Question 5: A micrometer is used to measure
Answer:
Thickness to a few thousandths of an inch
Question 6: Torsion springs
Answer:
Produce a twisting action Torision springs coil or uncoil and product a twisting action, not a direct pull; in other words, torsion springs apply torque Question 7: If a force of 200 pounds is exerted over an area of 10 square inches what is the PSI?
Answer:
20 You can calculate psi as Pressure= Force ÷ Area. So in this problem P= 200÷10=20
Question 8: A yellow flame on a gas furnace indicates
Answer:
The fuel-air mixture is too rich Too much fuel of not enough air. More air should be allowed to enter and mix with the gas.
Question 9: Water in an engine can cause damage in the winter because
Answer:
Water expands when it freezes Question 10: If a water tank on a toilet keeps overflowing, the problem is probably a
Answer:
Defective float Question 11: To move a 400- pound crate from the floor of a warehouse to the bed of a truck 4- feet off the ground the most efficient device?
Answer:
Incline plane To move heave object a few feet in height
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