BE/B Eng Bachelor of Engineering Bachelor of Engineering Science 4

Question 1

Which engineering ethics principle requires engineers to hold paramount the safety, health, and welfare of the public?

Accepted Answer

Public safety priority

Answer

The NSPE Code of Ethics mandates that engineers hold paramount the safety, health, and welfare of the public above all other obligations.

Question 2

What is the purpose of a Wheatstone bridge circuit in measurement systems?

Accepted Answer

Measure unknown resistance with high precision

Answer

A Wheatstone bridge uses four resistors in a bridge configuration to measure an unknown resistance by balancing the bridge to achieve zero galvanometer deflection.

Question 3

In computer-aided design (CAD), what does a Boolean subtraction operation produce?

Accepted Answer

One solid with material removed where another solid intersects

Answer

Boolean subtraction removes the volume of one solid from another, useful for creating holes, slots, and cutouts in 3D models.

Question 4

Which soil property is defined as the ratio of void volume to total soil volume?

Accepted Answer

Porosity

Answer

Porosity (n) is the ratio of void volume to total volume (n = Vv/V), while void ratio (e) relates void volume to solid volume.

Question 5

In a pressure vessel, hoop (circumferential) stress for a thin-walled cylinder under internal pressure p with radius r and wall thickness t is:

Accepted Answer

pr/t

Answer

Hoop stress in a thin-walled cylinder is σ_θ = pr/t, which is twice the longitudinal stress and governs the design against bursting.

BE/B Eng Bachelor of Engineering Practice Test

BE/B Eng Bachelor of Engineering Practice Test

BE/B Eng Bachelor of Engineering Bachelor of Engineering Science 4