// ASVAB MC — MECHANICAL COMPREHENSION
Mechanical Comprehension Practice (MC)
Physics applied: levers, pulleys, gears, fluids, force, work. Critical for Navy NUKE and Marine recon composites.
QUESTIONS
16
TIME LIMIT
20 min (CAT) / 19 min (paper)
FEEDS COMPOSITES
MM, MEC, NUKE, FA, SC, ST
What MC Covers
- → Levers and mechanical advantage
- → Pulleys (fixed, movable, compound)
- → Gears and gear ratios
- → Hydraulics and pneumatics
- → Force, work, and energy
- → Friction
Sample MC Question
A first-class lever has a 6-ft load arm and a 2-ft effort arm. To lift a 60-lb load, how much effort is required?
- A. 20 lb
- B. 60 lb
- C. 120 lb
- D. 180 lb✓ CORRECT
SARGE'S DEBRIEF: Effort × effort arm = load × load arm. So Effort × 2 = 60 × 6 = 360. Effort = 180 lb. (The longer load arm means you'd need MORE effort — this is a mechanical disadvantage setup.)
// FIELD TIP
Draw the diagram even if one is provided. MC questions reward spatial reasoning, and a quick sketch usually reveals the answer.
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