What is the anode in a voltaic cell? A voltaic cell is an electrochemical cell that uses a chemical reaction to produce electrical energy. The important parts of a voltaic cell: The anode is an electrode where oxidation occurs. The cathode is an electrode where reduction occurs. What is the principle of voltaic cell? Voltaic […]
Do employers have to post OSHA citations and abatement notices?
Do employers have to post OSHA citations and abatement notices? Posting Requirements When you receive an OSHA Notice, you must post it (or a copy of it) at or near the place where each violation occurred to make employees aware of the hazards to which they may be exposed. The OSHA Notice must remain posted […]
How many gallons of water does a household use per month?
How many gallons of water does a household use per month? The water industry estimates that an average person uses 3,000 gallons of water monthly, so a family of 4 would use 12,000 gallons for bathing, cooking, washing, recreation and watering. How many gallons of water does a family of 3 use per month? Let’s […]
How many fourths are in an inch?
How many fourths are in an inch? 1 inch has four equal parts. So, we can say 1/4 inch or (1/4)”. What is 1 yard in inches? What is 3/4 in an inch? Decimal equivalents of eights, sixteenths, thirty-seconds and sixty-fourths of an inch Inches fractional decimal 5/8 0.625 3/4 0.750 7/8 0.875 What is […]
How do you decrease roll forces during rolling process?
How do you decrease roll forces during rolling process? Ways to reduce force in flat rolling include (1) use hot rolling, (2) reduce draft in each pass, and (3) use smaller diameter rolls. Use smaller diameter rolls and hot rolling. How is rolling force calculated? Remember to account for any slope present (a°). The calculated […]
What happens above glass transition temperature?
What happens above glass transition temperature? There is a certain temperature(different for each polymer) called the glass transition temperature, or Tg for short. When the polymer is cooled below this temperature, it becomes hard and brittle, like glass. Some polymers are used above their glass transition temperatures, and some are used below. What is glass […]
What is the most important rule for wall thickness for plastic injection molded parts?
What is the most important rule for wall thickness for plastic injection molded parts? 40 to 60 percent Why is it important to have uniform wall thickness for injection molded parts? Consistent wall thickness is critical during the cooling process in injection molding; if some sections of a part are thinner than others, the part […]
What are the main characteristics of synchronous motor?
What are the main characteristics of synchronous motor? Main Features of Synchronous Motors Synchronous motors are inherently not self starting. The speed of operation of is in synchronism with the supply frequency and hence for constant supply frequency they behave as constant speed motor irrespective of load condition. Why synchronous motor is a constant speed […]
What type of ball joint is commonly used in a MacPherson strut suspension?
What type of ball joint is commonly used in a MacPherson strut suspension? MacPherson Strut: The strut and coil over spring requires a follower-type ball joint lower control arm. Short Long Arm (SLA): On this type of suspension with the spring connected to the lower control arm, a loaded lower ball joint and follower upper […]
Is Half Life radioactive decay?
Is Half Life radioactive decay? Half-life, in radioactivity, the interval of time required for one-half of the atomic nuclei of a radioactive sample to decay (change spontaneously into other nuclear species by emitting particles and energy), or, equivalently, the time interval required for the number of disintegrations per second of a radioactive … How long […]