Mettl Technical Aptitude 5

Question 1

A car engine produces 150 kW of power. How much work does it do in 30 seconds?

Accepted Answer

4,500 kJ

Answer

Work = Power × Time = 150,000 W × 30 s = 4,500,000 J = 4,500 kJ.

Question 2

In a computer network, what does the OSI model's 'Transport' layer primarily handle?

Accepted Answer

End-to-end communication and data segmentation

Answer

The Transport layer (Layer 4) manages end-to-end communication, reliability, and segmentation of data using TCP or UDP.

Question 3

What type of force acts on an object moving in a circular path, directed toward the center?

Accepted Answer

Centripetal force

Answer

Centripetal force acts toward the center of the circular path, keeping the object in its curved trajectory.

Question 4

Which sorting algorithm has an average time complexity of O(n log n)?

Accepted Answer

Merge Sort

Answer

Merge Sort divides the array recursively and merges sorted halves, achieving O(n log n) average and worst-case time complexity.

Question 5

A beam is supported at both ends and loaded in the center. Where does the maximum bending moment occur?

Accepted Answer

At the center of the beam

Answer

For a simply supported beam with a central point load, the maximum bending moment occurs at the midpoint of the beam.

Mettl Practice Test