A heavy roller is held in equilibrium on a frictionless Plane AB by the force F, as shown. Which diagram correctly shows a vector polygon of the forces acting on the roller?
(A) Option A
(B) Option B
(C) Option C
(D) Option D
What is the hydraulic diameter of a 20 inch diameter pipe that is half full?
(A) 10 inches (B) 2.5 inches (C) 20 inches (D) 5 inches
Correct Answer: D
What is the oxidation state of Carbon in Carbonate (CO3-2)
(A) -2 (B) 4 (C) 1 (D) 2
Correct Answer: B
You must choose between four pieces of comparable equipment based on the costs and salvage values given below. All four pieces have a life of 8 years.
The discount rate is 12%. Ignore taxes. The two most preferable projects and the approximate difference between their present worth values based on least cost are:
(A) A and C, $170 (B) B and D, $170 (C) A and C, $234 (D) B and D, $234
Correct Answer: B
More PE Exam Questions
- 1
The following data have been collected:
Which of the following statements is true?
- 2How much torque can be applied to a 6 inch outer diameter pipe that has a wall thickness of 0.25 inches when the maximum shear stress is 20,000 psi?
- 3What cycle is the most efficient?
- 4Which of the following are not an intensive property? Pressure Velocity Volume Density Kinetic Energy
- 5An 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?