Is the sample mean always equal to one of the values in the sample? The sample mean does NOT always equal one of the values in the sample. Is the most frequently occurring value in a data set? The mode or modal value of a data set is the most frequently occurring value. Which is […]
What is the most effective method to protect against a fall hazard?
What is the most effective method to protect against a fall hazard? include use of stairs, guardrails, and barriers to prevent the employee from direct and unprotected exposure to the fall hazard. These techniques prevent the fall before the onset. Control of falls is the last line of defense. How can hazards be prevented from […]
What causes high BOD in wastewater effluent?
What causes high BOD in wastewater effluent? Hydrolysis converts particulate organic matter to soluble and easily degradable organic acids which is why you measure an increase in BOD. What is the limit of BOD on discharge of wastewater on the surface water? 350 mg/L In which way sewage can be treated? Four common ways to […]
What does a bimetallic strip consists of?
What does a bimetallic strip consists of? A bimetallic strip is used to convert a temperature change into mechanical displacement. The strip consists of two strips of different metals, which expand at different rates as they are heated. How does a bimetallic strip measure temperature? When heated, the metal strip deforms due to the different […]
How do you calculate stair risers?
How do you calculate stair risers? There are four main components that need to be considered when measuring a staircase: Rise, Run, Width, and Headroom. To determine the number of risers in the staircase take the total height between floors, in inches, and divide by 8.25. In a straight staircase, there will always be one […]
What are the main components of an elevator?
What are the main components of an elevator? The different parts of an elevator include: Elevator car & shaft. The Sheave & Motor. Control unit. Counterweight. Machine drive. Counterweight guide rails. Guide rail fixing bracket. Car guide rail. How do elevator doors work? Elevators use two different sets of doors: doors on the cars and […]
How is the architecture career pathway different from the construction pathway?
How is the architecture career pathway different from the construction pathway? Answer Expert Verified Architectures actually oversee projects and constructions, design buildings and structures and make sure they look good and safe, while Construction managers monitor the work, and they hire contractors for the operations, they also coordinate and schedule designs. Which best describes the […]
Why is the Buckingham π theorem used?
Why is the Buckingham π theorem used? Significance. The Buckingham π theorem provides a method for computing sets of dimensionless parameters from given variables, even if the form of the equation remains unknown. Most importantly, Buckingham’s theorem describes the relation between the number of variables and fundamental dimensions. What are repeating variables in Buckingham Pi […]
What are the advantages of method of section?
What are the advantages of method of section? The primary benefit of the method of sections is that, for a determinate truss, you can find the force in any individual member quickly without having to solve through the entire truss one joint at a time (which you must do when using the method of joints). […]
What are the 3 types of relationships in a database?
What are the 3 types of relationships in a database? There are three types of relationships between the data you are likely to encounter at this stage in the design: one-to-one, one-to-many, and many-to-many. To be able to identify these relationships, you need to examine the data and have an understanding of what business rules […]