When was the first aircraft carrier used? The first purpose-designed aircraft carrier to be laid down was HMS Hermes (1924) in 1918. Japan began work on Hōshō the following year. In December 1922, Hōshō became the first to be commissioned, while Hermes was commissioned in February 1924. What is the first flying technology humans developed? […]
What is biggest cause of global warming?
What is biggest cause of global warming? The evidence is clear: the main cause of climate change is burning fossil fuels such as oil, gas, and coal. When burnt, fossil fuels release carbon dioxide into the air, causing the planet to heat up. What are the natural causes of global warming? Top 5 Natural Causes […]
What are precautions to be taken near a furnace?
What are precautions to be taken near a furnace? Here are a few tips that you can use on any type of furnace to get them ready for winter: Vacuum. Lint and dust causes hazards around your furnace. Furnace Rules. Keep Air Flowing. Schedule Inspections. Keep Flammable Items Away. Replace Filters. Test Carbon Monoxide and […]
How do I log into my biometric attendance system?
How do I log into my biometric attendance system? BIOMETRIC ATTENDANCE SYSTEM – Nodal Officer Activities Click ‘LOGIN’ option from the left panel. Give the login credentials (username & password) and click ‘SIGN ME IN’. How do I register a user in biometrics? How to add new user to the Fingerprint Reader Click on [Menu] […]
How do you perform a radiation leakage safety?
How do you perform a radiation leakage safety? How can leakage and backscatter radiation to the operator be reduced? Shield the unit housing as required by the federal standard. Provide external shielding or a means to increase distance between the operator and the unit. Measure typical exposures near and around the unit. What is the […]
What are the main engineering requirements of materials?
What are the main engineering requirements of materials? The “four elements” of the field of materials engineering are: processing (how a material is created); structure (the arrangement of a material’s components); properties (such as electrical, magnetic or thermal properties); and performance (whether a material meets the intended requirements). How do you classify materials for engineering […]
What is the minimum required overlap on a #4 rebar splice?
How is heat transferred during thermal conduction?
How is heat transferred during thermal conduction? Heat is transferred by conduction when adjacent atoms vibrate against one another, or as electrons move from one atom to another. Conduction is the most significant means of heat transfer within a solid or between solid objects in thermal contact. What is an example of natural convection? One […]
Is oblique projection a 2D drawing technique?
Is oblique projection a 2D drawing technique? Oblique projection is a simple type of technical drawing of graphical projection used for producing two-dimensional (2D) images of three-dimensional (3D) objects. What is the difference between an oblique cavalier and an oblique cabinet view? For a cavalier oblique, the depth of the object is drawn to full […]
Which devices can be used for the purpose of lockout?
Which devices can be used for the purpose of lockout? Lockout device: Any device that uses positive means, such as a lock, blank flanges and bolted slip blinds, to hold an energy-isolating device in a safe position, thereby preventing the energizing of machinery or equipment. What are double block and bleed valves used for? Double […]