Category: Engineering

What are the 4 types of chemical hazards? These signs can be divided into: Explosive (exploding bomb) Flammable (flame) Oxidizing (flame above a circle) Corrosive (corrosion of table and hand) Acute toxicity (skull and crossbones) Hazardous to environment (dead tree and fish) Health hazard/hazardous to the ozone layer (exclamation mark) What is hazardous chemical and […]

What are the 3 renewable resources? The most popular renewable energy sources currently are: Solar energy. Wind energy. Hydro energy. Tidal energy. Geothermal energy. Biomass energy. What are 4 examples of renewable resources? Renewable resources include biomass energy (such as ethanol), hydropower, geothermal power, wind energy, and solar energy. Biomass refers to organic material from […]

What are nickel based superalloys? Nickel-base superalloys are corrosion resistant high-temperature alloys typically used at service temperatures above 500°C. They usually contain significant amounts of up to 10 alloying elements including light elements like boron or carbon and heavy refractory elements like tantalum, tungsten, or rhenium. Why are superalloys used in jet engines? Superalloys are […]

What do you do if your headlights go out at night? If your headlights suddenly go out, do the following: First, try your dimmer switch. Often that will turn them back on again. Try the headlight switch a few times. Pull off the road as soon as you can and leave your hazard lights on […]

What does it mean when someone says tell me something good? When someone says “tell me something good” it means they want (and possibly need) to hear some good news. What is something interesting to tell a girl? Here are the 5 best things to say to a girl you like: When I need someone, […]

How D flip flop make JK flip flop? Conversion of J-K Flip-Flop into D Flip-Flop: Step-1: We construct the characteristic table of D flip-flop and excitation table of JK flip-flop. Step-2: Using the K-map we find the boolean expression of J and K in terms of D. J = D K = D’ Step-3: We […]

What test should be performed on all cord sets? continuity test At what intervals should cord sets & receptacles that are not fixed or part of the building or structure be tested? At intervals not to exceed 3 months, except that cord sets and receptacles which are fixed and not exposed to damage shall be […]

What welding current is needed for the GTA welding of aluminum? 1. Determine amperage requirements. Each 0.001 inch of metal to be melted requires about 1 amp of welding power. For example, welding 1/8-inch aluminum requires about 125 amps. Why is high frequency used for some GTA welding? High Frequency – The high frequency mode […]

What is splined shaft? Splines are ridges or teeth on a drive shaft that mesh with grooves in a mating piece and transfer torque to it, maintaining the angular correspondence between them. For instance, a gear mounted on a shaft might use a male spline on the shaft that matches the female spline on the […]

What is the acceleration between 0 and 2 s? Between 0 and 2 seconds the acceleration is +2 m/s2. Between 2 and 3 seconds the acceleration is zero. Why is acceleration m/s 2? Because acceleration is velocity in m/s divided by time in s, the SI units for acceleration are m/s2, meters per second squared […]