What is thin walled cylinder? Hoop and longitudinal stress thin-walled tubes or cylinders When a thin-walled tube or cylinder is subjected to internal pressure a hoop and longitudinal stress are produced in the wall. For the thin walled equations below the wall thickness is less than 1/20 of tube or cylinder diameter. What is thin […]
What are the three methods of transmitting power?
What are the three methods of transmitting power? 4 Types of Power Transmission – Mechanical, Electrical, Hydraulic and Pneumatic (Pros & Cons) What are the two types of transmissions? Generally speaking, there are two types of transmissions: manual transmissions, which have a foot-operated clutch pedal and a shifter that allows the driver to manually change […]
How many bends can you have in a conduit run?
How many bends can you have in a conduit run? National Electrical Code or NEC limits the total number of bends in one continuous run to 360 degrees or four 90 degree bends. It specifically states, “There shall not be more than the equivalent of four quarter bends (360 degrees total) between pull points, for […]
What is the salary range for a mechanical engineer?
What is the salary range for a mechanical engineer? in Sydney Area Salaries Job Title Location Salary Downer Mechanical Engineer salaries – 3 salaries reported Sydney Area A$102,606/yr Aurecon Mechanical Engineer salaries – 3 salaries reported Sydney Area A$77,783/yr University of NSW Mechanical Engineer salaries – 2 salaries reported Sydney Area A$88,283/yr What can Mechanical […]
What is the function of directional control valve?
What is the function of directional control valve? What is the function of a directional control valve? A directional control valve is the extend and retract control for your hydraulic cylinders. It provides a flow path from the pump to the cylinders and a return path from the cylinders to the fluid reservoir. What is […]
What is C3S in cement?
What is C3S in cement? It is the hydration of the calcium silicate, aluminate, and aluminoferrite minerals that causes the hardening, or setting, of cement. The ratio of C3S to C2S helps to determine how fast the cement will set, with faster setting occurring with higher C3S contents. Lower C3A content promotes resistance to sulfates. […]
What is ferrite cementite austenite and pearlite?
What is ferrite cementite austenite and pearlite? The alpha phase is called ferrite. Ferrite is a common constituent in steels and has a Body Centred Cubic (BCC) structure [which is less densely packed than FCC]. Fe3C is called cementite and lastly (for us), the “eutectic like” mixture of alpha+cementite is called pearlite. What is ferrite […]
What are the three types of communication protocols?
What are the three types of communication protocols? These are: Transmission Control Protocol (TCP) Internet Protocol (IP) User Datagram Protocol (UDP) Post office Protocol (POP) Simple mail transport Protocol (SMTP) File Transfer Protocol (FTP) Hyper Text Transfer Protocol (HTTP) Hyper Text Transfer Protocol Secure (HTTPS) What are protocols Name any 3 examples of protocols used […]
What are the macronutrients and their functions to the body?
What are the macronutrients and their functions to the body? Macros are macronutrients. Your body needs these nutrients in larger amounts in order to function properly as macro means large. In addition, all of these nutrients provide your body with energy measured in the form of calories or kcals. There are three types of macronutrients: […]
Which of the following causes stress concentration?
Which of the following causes stress concentration? Stress concentrations occur when there are irregularities in the geometry or material of a structural component that cause an interruption to the flow of stress. This arises from such details as holes, grooves, notches and fillets. Stress concentrations may also occur from accidental damage such as nicks and […]