A piston inside a cylinder undergoes an isentropic compression with the following values.
$latex p_1= 4.57 \frac{N}{cm^2}$
$latex p_2= 34.07 \frac{N}{cm^2}$
$latex V_1 = 257 cm^3$
If the specific heat ratio (k) is 1.4, What is the compressed volume?
(A) 61.2cm3
(B) 30.5cm3
(C) 90.4cm3
(D) 257cm3
Which of the following is FALSE with regards to creep I. May involve the sliding of whole grains II At high stresses creep is controlled by the movement of vacancies. III Also known as hot flow IV Creep is a time dependent deformation
(A) I (B) II (C) III (D) IV
Correct Answer: C
What is the oxidation state of Carbon in Carbonate (CO3-2)
(A) -2 (B) 4 (C) 1 (D) 2
Correct Answer: B
Your credit card has a nominal interest rate of 18%. If the interest is calculated monthly, what is the effective annual rate?
（A）19.0% （B） 18.5% （C） 19.6% （D） 20.1%
Correct Answer: C
More PE Exam Questions
- 1An 18 wheeler has a mass of 28,000 kilograms when fully loaded. The truck goes from 0 to 90 kilometers per hour in 120 seconds. What is the force on the 18 wheeler due to acceleration?
- 2How much heat is dissipated when a current of 15 amps passes through a 4 ohm resistor?
- 3
A company can manufacture a product using hand tools. Tools will cost $1,000, and the manufacturing cost per unit will be $1.50. As an alternative, an automated system will cost $15,000 with a manufacturing cost per unit of $0.50. With an anticipated annual volume of 5,000 units and neglecting interest, the break-even point (years) is most nearly:
- 4Using the Gibbs Phase Rule, how many intensive properties are required to fix a mixture of water and ammonia that is in a liquid state?
- 5Reactions on average will proceed faster at a higher temperature because of which of the following?