What do you mean by thermal boundary layer How does the ratio of velocity boundary layer thickness to thermal boundary layer thickness vary with Prandtl number? The thermal boundary layer thickness is similarly the distance from the body at which the temperature is 99% of the freestream temperature. The ratio of the two thicknesses is […]
What controls the size of the arc in welding?
What controls the size of the arc in welding? Amperage How electric arc is produced in welding? An arc is an electric current flowing between two electrodes through an ionized column of gas. A negatively charged cathode and a positively charged anode create the intense heat of the welding arc. Negative and positive ions are […]
What is meant by parallel flow heat exchanger?
What is meant by parallel flow heat exchanger? In heat exchanger. This flow arrangement is called parallel flow. Heat is transferred from the warm fluid through the wall of the inner tube (the so-called heating surface) to the cold fluid. A heat exchanger can also be operated in counterflow, in which the two fluids flow […]
What is a feature found in a typical transaxle?
What is a feature found in a typical transaxle? In short, a transaxle performs both the gear-changing function of a transmission and the power-splitting ability of an axle differential in one integrated unit. A transmission performs the gear-changing function only, delivering power via a single output shaft at the back of the unit. Which of […]
Why is it a good idea to lock your doors while driving?
Why is it a good idea to lock your doors while driving? Ray: So, lock the doors when you’re driving. You’ll not only increase your safety in an accident, but you’ll also increase your safety around town — by preventing unsavory characters like my brother from getting into your car after squeegeeing your window at […]
What is a pointer in MIPS?
What is a pointer in MIPS? Pointer: a variable that contains the address of another variable. HLL version of machine language memory address. How many bytes does it take to store all of the MIPS instructions of the above sequence in memory? Instructions are all 32 bits. byte(8 bits), halfword (2 bytes), word (4 bytes) […]
What are some weather conditions that make driving particularly dangerous?
What are some weather conditions that make driving particularly dangerous? Bad weather conditions, such as rain, fog, wind, snow, or ice can make driving treacherous and dangerous. What are three responses or actions that a driver can make to increase safety in hazardous weather conditions? Here are some tips for driving in bad weather: Plan […]
How can you tell if an error is systematic?
How can you tell if an error is systematic? A systematic error makes the measured value always smaller or larger than the true value, but not both. An experiment may involve more than one systematic error and these errors may nullify one another, but each alters the true value in one way only. Accuracy (or […]
What are 3 types of microscopes?
What are 3 types of microscopes? There are three basic types of microscopes: optical, charged particle (electron and ion), and scanning probe. Optical microscopes are the ones most familiar to everyone from the high school science lab or the doctor’s office. What are the three different types of microscopes and how are they different? While […]
What are the four major types of information system?
What are the four major types of information system? There are four common types of information systems, and these are transaction processing systems, management information systems, decision-support systems, and executive support systems. What are the five components of an information system What is the most important component of these five? Computer-based information systems consist of […]