What were the criteria and constraints of the problem facing the engineers? Explain the terms “criteria” and “constraints.” Criteria are things the design needs to do in order to be successful–its requirements. Constraints are limitations on the design. These may be materials available, the cost of the materials, the amount of time they have to […]
What gear should I be in going up a steep hill?
What do you understand by the term motion?
What do you understand by the term motion? Motion, in physics, change with time of the position or orientation of a body. Motion along a line or a curve is called translation. Motion that changes the orientation of a body is called rotation. What is the change in position of an object called? In physics, […]
How do you calculate plume rise?
How do you calculate plume rise? Solution: Calculate wind speed at stack height. u = u1 * (z/z1)p = 3 * (50/10)0.15 = 3.8 m/sec. Check for downwash: Vs / u >= 1.5 (downwash conditions need not be considered) = 20.0/3.8 = 15.237 >1.5 (therefore downwash need not be considered) Calculate plume height, Δh. Calculate […]
What is microscopic cross section?
What is microscopic cross section? The microscopic cross-section “σ” is used to characterize the probability of reaction between a neutron and an individual particle or nucleus. A neutron can have many types of interactions with a nucleus (Ragheb, 2011). What is macroscopic cross section? The macroscopic cross-section represents the effective target area of all of […]
What does %d mean in C?
What is Derived Air Concentration?
What is Derived Air Concentration? The concentration of a given radionuclide in air which, if breathed by the reference man for a working year of 2,000 hours under conditions of light work (with an inhalation rate of 1.2 cubic meters of air per hour), results in an intake of one annual limit on intake (ALI). […]
What is a Type B-1 fire extinguisher?
What is a Type B-1 fire extinguisher? B-1 Extinguishers are USCG approved and meet the need for a Type B, Size 1 USCG approved Fire Extinguisher. Amerex B-I Fire Extinguishers must be: Dry Chemical, ABC, or Purple K: 2 lbs or larger. Carbon Dioxide (Co2): 5 lbs or larger. Under what conditions is a Type […]
How much is the Francis Scott Key Bridge toll?
How much is the Francis Scott Key Bridge toll? At the Key Bridge, the two-axle E-ZPass® Maryland toll rate is $3, and the two-axle Video Toll rate is $6. E-ZPass® commuter plans are available. Due to higher processing costs, the Video Toll rate is 50 percent above the base rate with a maximum of $15 […]
What is the purpose of Charpy impact test?
What is the purpose of Charpy impact test? The Charpy impact test, also known as the Charpy V-notch test, is a high strain-rate test that involves striking a standard notched specimen with a controlled weight pendulum swung from a set height. The impact test helps measure the amount of energy absorbed by the specimen during […]