Why is it important to identify errors in an experiment? In complicated experiments, error analysis can identify dominant errors and hence provide a guide as to where more effort is needed to improve an experiment. Why is it important to identify the errors in measurement? Measurement uncertainty is critical to risk assessment and decision making. […]
What are the components of mechatronics system?
What are the components of mechatronics system? Physically, a mechatronic system is composed of four prime components. They are sensors, actuators, controllers and mechanical components. Is mechatronics part of mechanical engineering? Mechanical Engineering provides a broad foundation in all aspects of mechanical design: mechanics, power, control, and manufacturing. Mechatronics Engineering emphasizes the design of electro-mechanical […]
Is time independent or dependent?
Is time independent or dependent? Time is a common independent variable, as it will not be affeced by any dependent environemental inputs. Time can be treated as a controllable constant against which changes in a system can be measured. Is food independent or dependent? The amount of food depends on the day, so it is […]
What are special causes of variation?
What are special causes of variation? Special Cause Variation, on the other hand, refers to unexpected glitches that affect a process. The term Special Cause Variation was coined by W. Edwards Deming and is also known as an “Assignable Cause.” These are variations that were not observed previously and are unusual, non-quantifiable variations. What is […]
What is abrasive wear?
What is abrasive wear? Abrasive wear is the removal of material from a surface by a harder material impinging on or moving along the surface under load. Where do you use abrasive cleaners? Benefits They simplify cleaning off stubborn dirt and grease build-up-, whether it’s burnt-on food on the cooker or soap scum in the […]
How do you calculate the efficiency of a heat pump?
How do you calculate the efficiency of a heat pump? The efficiencies of air conditioners and heat pumps sold in the United States are often stated in terms of an energy efficiency ratio (EER): This peculiar ratio can be compared to the more straightforward coefficient of performance by converting BTU/hr to watts: Therefore CP = […]
What is a structured approach?
What is a structured approach? The structured approach is a process oriented approach, aiming to break a large complex project into a series of smaller, more manageable modules. … What is meant by structured design? A systematic approach to program design developed in the mid-1970s by Constantine, Yourdon, et al, that included the use of […]
Which of the following is used to control the distribution of energy in a fluid power system?
Which of the following is used to control the distribution of energy in a fluid power system? Flow control valves. Directional control valves are essentially used for distribution of energy in a fluid power system. They establish the path through which a fluid traverses a given circuit. For example they control the direction of motion […]
What are the disadvantages of PWM?
What are the disadvantages of PWM? Disadvantages of pulse width modulation : The complexity of the circuit. Voltage spikes. The system requires a semiconductor device with low turn ON and turn OFF times. Radiofrequency interference. Electromagnetic noise. Bandwidth should be large to use in communication. High switching loss due to the high PWM frequency. What […]
Do 2-cycle engines need oil gas?
Do 2-cycle engines need oil gas? Two-stroke (two-cycle) engines require you to mix the oil with the gas in exact amounts so the oil acts as a lubricant for the crankcase, while four-stroke engines take oil and gas separately. In a 2-stroke engine, it takes one full revolution (2 stages) to complete 1 power stroke. […]