What is the capacity of an AA alkaline battery? 2,500 mAh How is AA battery capacity measured? How to Test AA Batteries With a Voltmeter Consider how much power the device needs to function. AA batteries are supposed to deliver 1.5 volts. Set your meter to DC to measure batteries. Voltmeters measure both AC and […]
How many types of degradation are possible in polymer?
How many types of degradation are possible in polymer? The types of polymer degradation can be divided into three general categories: chain depolymerisation, random scission and substituent reactions. What is ceramic degradation? Deterioration of ceramics. Degradation of an object occurs as a result of the interaction between the environment or with the materials that form […]
What is draft in molding?
What is draft in molding? In engineering, draft is the amount of taper for molded or cast parts perpendicular to the parting line. By tapering the sides of the mold by an appropriate “draft angle”, for instance 2° (two degrees), the mold will be easier to remove. How do you calculate draft angle? When designing […]
What is max principal stress?
What is max principal stress? Maximum principal stress theory: This theory states that failure in any material occurs when the principal stress in that material due to any loading exceeds the principal stress at which failure occurs in the 1 dimensional loading test (universal tensile test in case of mild steel). Why are principal stresses […]
What happens in the circuit when the switch is moved from the off position to the on position?
What happens in the circuit when the switch is moved from the off position to the on position? When a switch is in the ‘on’ position it allows the electricity flow to enter the main electrical circuit and the circuit becomes a closed circuit. On the other hand,when a switch is in the ‘off’ position […]
Who was arrested for refusing to give up a seat on the bus and why is this significant?
Who was arrested for refusing to give up a seat on the bus and why is this significant? The boycott took place from December 5, 1955, to December 20, 1956, and is regarded as the first large-scale U.S. demonstration against segregation. Four days before the boycott began, Rosa Parks, an African American woman, was arrested […]
What is the equivalent of 85 decibels?
What is the equivalent of 85 decibels? Topic Overview Noise Average decibels (dB) Vacuum cleaner, average radio 75 Heavy traffic, window air conditioner, noisy restaurant, power lawn mower 80–89 (sounds above 85 dB are harmful) Subway, shouted conversation 90–95 Boom box, ATV, motorcycle 96–100 What’s the loudest sound on earth? The Krakatoa volcanic eruption: Not […]
How do you calculate flow velocity in a pipe?
What is the function of a shock absorber?
What is the function of a shock absorber? The role of the shock absorber is to keep the car’s tyres in permanent contact with the road, helping to provide optimum grip, when cornering and braking. Shock absorbers are part of the suspension, so if the shocks are worn, the vehicle’s ride and comfort is compromised. […]
What are two important quantum mechanical concepts associated with the Bohr model of the atom?
What are two important quantum mechanical concepts associated with the Bohr model of the atom? 2.4 (a) Two important quantum-mechanical concepts associated with the Bohr model of the atom are that electrons are particles moving in discrete orbitals, and electron energy is quantized into shells. How are the quantum mechanical model and the Bohr model […]