Category: Engineering

Can most hazardous waste be disposed of in a landfill? Disposal – Permanently containing hazardous wastes. The most common type of disposal facility is a landfill, where hazardous wastes are disposed of in carefully constructed units designed to protect groundwater and surface water resources. What is the most appropriate way to handle hazardous waste? What […]

How far can a pump push water vertically? In a water well, the weight of the atmosphere is acting on the surface of the water down in the well. The pump at ground level acts as the source of vacuum and has a theoretical lifting capability of about 30 feet (It would lift 34 feet […]

What is the accusative plural in Latin? First declension nouns Case Singular Plural Vocative -a -e Accusative -am -as Genitive -e -arum Dative -e -is What does declension mean? 1a : noun, adjective, or pronoun inflection especially in some prescribed order of the forms. b : a class of nouns or adjectives having the same […]

What is the formula for velocity and acceleration? Acceleration (a) is the change in velocity (Δv) over the change in time (Δt), represented by the equation a = Δv/Δt. This allows you to measure how fast velocity changes in meters per second squared (m/s^2). Acceleration is also a vector quantity, so it includes both magnitude […]

What is the difference between the clutch and the brake? So what’s the difference between the brake and the clutch? The brake is used to stop or slow down the rotating wheels of a vehicle. The clutch, on the other hand, transfers power from the car’s driving shaft and is used to start and stop […]

What is the probability that two cards drawn at random from a deck of playing cards will both be aces? probability that they will both be aces? P(AA) = (4/52)(3/51) = 1/221. WITHOUT REPLACEMENT: What is the probability that the second card will be an ace if the first card is a king? P(A|K) = […]

Why Does entropy increase during a spontaneous process? If heat flows into the surroundings (i.e., when a reaction is exothermic) the random motions of the molecules in the surroundings increase. Thus, the entropy of the surroundings increases. The second law of thermodynamics states that the total entropy of the universe always increases for a spontaneous […]

What tank is used in submarines so they can float as well as sink in water? ballast tanks How do submarines move in water? Submarines float on the surface by using ballast tanks full of air. There are valves at the top of the ballast tanks that are opened when it’s time for the submarine […]

What is the difference between negative acceleration and retardation? What is the difference between negative acceleration and retardation? When the acceleration is acting in a direction opposite to the velocity, it is called called retardation. Similarly we can take the direction of the velocity to be positive, and if acceleration is opposed to it is […]

What is the minimum amount of time an A C system should be evacuated for to effectively boil all the water out of the A C system? approximately 10 minutes What is the purpose of evacuating the AC system? What is the purpose for evacuating a refrigeration system? Evacuating a refrigeration system serves two primary […]