Why a synchronous motor does not develop torque on starting? The stator carries windings connected to an AC supply to produce a rotating magnetic field.At synchronous speedthe rotor poles lock to the rotating magnetic field, beacause of the constant magnetic field in the rotor these cannot use induction windings for starting. Synchronous motors are inherently […]
What is sparse matrix in data structure with example?
Why Engineering is a great career?
Why Engineering is a great career? Employability. Creative thinkers, problem solvers, communicators, team players, it’s not surprising that engineers are some of the most sought after people for a diverse range of jobs. All kinds of businesses recognise engineers as people that are very well-educated and good at solving problems. Why did you choose engineering […]
What are the 20 examples of homophones?
What are the assumptions of input-output analysis?
What are the assumptions of input-output analysis? The inputs remain in constant proportion to the level of output. It implies that there is no substitution between different materials and no technological progress. There are fixed input coefficients of production. What is Input-Output model in economics? Input-output analysis (I-O) is a form of macroeconomic analysis based […]
What would happen if you dropped a penny off the Empire State Building?
What would happen if you dropped a penny off the Empire State Building? Bloomfield said a penny, or anything else, would hit the ground at a speed of about 210 mph if it were tossed from the Empire State Building in an airless environment. Both items, Bloomfield said, if dropped from the Empire State Building, […]
What are the units of surface roughness?
What are the units of surface roughness? Average roughness is typically measured in either microns (µm) or micro-inches (µ-in, µ”). One micron equals roughly 40 micro-inches (µ”). Also note that “micron” and “micrometer” are equivalent, and both terms are commonly used. Key fact: Ra has units. How is surface roughness measured? Roughness can be measured […]
What type of reaction is responsible for the generation of energy from fuel cells?
What type of reaction is responsible for the generation of energy from fuel cells? When the electrons return from doing work, they react with oxygen in the air and the protons (which have moved through the membrane) at the cathode to form water. This union is an exothermic reaction, generating heat that can be used […]
Which of the following is a bulk deformation process?
Which of the following is a bulk deformation process? Deformation processes can be conveniently classified into bulk-forming processes (e.g., rolling, extrusion, and forging) and sheet-forming processes (e.g., stretching, flanging, drawing, and contouring). Which of the following processes is not the type of bulk forming process in metal forming? Which of the following processes is not […]