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If a process is considered to be internally reversible and adiabatic, what can the change in entropy be assumed to be?

(A) Entropy becomes Infinite

(B) Entropy increases

(C) Entropy decreases

(D) Entropy does not change

The Correct Answer
Explanation

What cycle is the most efficient?

(A) Carnot (B) Brayton (C) Diesel (D) Otto

Correct Answer: A

You are tasked with identifying where the stress concentrations may appear on a support beam. Of the following locations which will not have a stress concentration? I Near concentrated loads II. Close to discontinuities of the beam III Where distributed loads occur.

(A) II & III (B) II (C) I & II (D) III

Correct Answer: D

An iron sphere with a mass of 1.5 kg hangs from a 15 cm long spring. If the spring constant is 0.75 N/m what is the period of oscillation when the sphere is pulled down and released?

(A) 3.2 s (B) 8.9 s (C) 4.4 s (D) 12.5 s

Correct Answer: B

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