QUESTIONS AND DETAILED SOLUTIONS
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1.
A soldier reads a passage stating that oxygen is essential for
cellular respiration. What is the main idea?
A. Oxygen is only useful in water formation
B. Oxygen is essential for energy production in cells
C. Cells do not require oxygen for survival
D. Oxygen is only used in plant life
Answer: B
Rationale: The passage emphasizes oxygen’s role in energy
production within cells.
2.
A vehicle travels 180 miles in 3 hours. What is its average
speed?
A. 50 mph
B. 60 mph
C. 70 mph
D. 80 mph
,Answer: B
Rationale: Speed = distance ÷ time = 180 ÷ 3 = 60 mph.
3.
A recruit is asked to solve: 3/4 + 1/8. What is the correct
answer?
A. 7/8
B. 5/8
C. 1/2
D. 3/8
Answer: A
Rationale: Convert 3/4 to 6/8, then 6/8 + 1/8 = 7/8.
4.
A technician observes that increasing voltage while
resistance stays constant will result in what?
A. Decreased current
B. Increased current
C. No change in current
D. Current stops flowing
Answer: B
Rationale: Ohm’s Law states current increases when voltage
increases if resistance is constant.
,5.
A gear system has a small gear driving a larger gear. What
happens to speed?
A. Speed increases
B. Speed decreases
C. No change
D. System stops
Answer: B
Rationale: Larger driven gear reduces rotational speed but
increases torque.
6.
A student reads: “Photosynthesis converts sunlight into
chemical energy.” What is this describing?
A. Respiration process
B. Energy conversion in plants
C. Water cycle
D. Soil formation
Answer: B
Rationale: Photosynthesis is energy conversion in plants.
, 7.
A worker measures a rectangle 10m by 5m. What is its
area?
A. 15 m²
B. 25 m²
C. 50 m²
D. 100 m²
Answer: C
Rationale: Area = length × width = 10 × 5 = 50 m².
8.
A circuit contains a broken wire. What will most likely
happen?
A. Increased voltage
B. Current stops flowing
C. Resistance decreases
D. Power increases
Answer: B
Rationale: Open circuit prevents current flow.
9.