Mechanical Aptitude Ultimate Questions and Answers 2

Question 1

A gear train has a 20-tooth input gear, a 40-tooth idler gear, and a 60-tooth output gear. What is the overall gear ratio?

Accepted Answer

1:3

Answer

1:2

Answer

2:3

Answer

1:6

Question 2

A hydraulic press has an input piston area of 5 cm² and an output piston area of 100 cm². If the input force is 200N, what force is produced at the output?

Accepted Answer

4,000N

Answer

1,000N

Answer

2,000N

Answer

10,000N

Question 3

A 500 kg load is lifted 4 meters using a pulley system with 80% efficiency. How much work input is required?

Accepted Answer

24,500 J

Answer

15,680 J

Answer

19,600 J

Answer

39,200 J

Question 4

Two springs with spring constants k₁ = 200 N/m and k₂ = 300 N/m are connected in parallel. What is the combined spring constant?

Accepted Answer

500 N/m

Answer

120 N/m

Answer

250 N/m

Answer

600 N/m

Question 5

An engine produces 150 kW of power. How much work does it perform in 30 seconds?

Accepted Answer

4,500,000 J

Answer

5,000 J

Answer

4,500 J

Answer

450,000 J

Question 6

A beam supported at both ends carries a 600N point load at its center. What is the reaction force at each support?

Accepted Answer

300N each

Answer

600N each

Answer

200N each

Answer

150N each