How long until alcohol leaves the body? The average urine test can detect alcohol between 12 and 48 hours after drinking. More advanced testing can measure alcohol in the urine 80 hours after you drink. Breath tests for alcohol can detect alcohol within a shorter time frame. This is about 24 hours on average. How […]
Why is LPG better than wood for fuel?
Why is LPG better than wood for fuel? (b) LPG has more calorific value and produces no pollution. So it is better domestic fuel than wood. (c) The ignition temperature of paper is less, so it catches fire easily. It does not catch fire when wrapped around aluminium pipe because aluminium absorbs the heat, so […]
What can cause diesel engine not to start?
What can cause diesel engine not to start? It’s the middle of summer and your diesel engine is having trouble getting started. The problems that can occur due to the cold weather are well-known and fairly common, such as using summer-grade fuel in winter, a bad glow plug system, slow cranking, or thick, cold oil. […]
Is francium used in bombs?
Is francium used in bombs? Because the alkali metals react viciously with water, a huge explosion will result when the two substances are combined, especially with the heavier alkalis like cesium and francium. This is the explosion necessary for our francium Bomb. First off, francium is highly rare. Why is francium dangerous? Useful to Scientists […]
What is the difference between extensive and intensive economic growth?
What is the difference between extensive and intensive economic growth? Extensive growth in its pure form is based on quantitative increases in labour, capital and land, whereas intensive growth is derived from gains in overall productivity, i.e. increasing efficiency of labour and a better utilization of capital and other means of production. Which of the […]
Do resistors have a positive and negative side?
Do resistors have a positive and negative side? Resistors don’t care which leg is connected to positive or negative. The + means where the positive or red probe of the volt meter is to be placed in order to get a positive reading. This is called the “positive charge” flow sign convention. Does it matter […]
How much is a curie of radiation?
What Colour surface is best at absorbing infrared radiation?
What Colour surface is best at absorbing infrared radiation? Dark What Colour is the best absorber of radiation? black How can you tell the difference between good and bad emitters of infrared radiation? Good emitters of IR (infra-red) radiation are also good absorbers. Matt, black surfaces are the best emitters and absorbers; and shiny, light […]
What are the five major types of complementary and alternative medicine?
What are the five major types of complementary and alternative medicine? Complementary or alternative medicine can be classified into five major categories of practice: Whole medical systems. Mind-body techniques. Biologically based practices. Manipulative and body-based therapies. Energy therapies. Which of the following is a good way to choose a primary care physician? Five tips for […]
Which two networks can be used for impedance matching?
Which two networks can be used for impedance matching? An article about how to design basic impedance matching networks using the pi and T-networks for improved selectivity. The L-network is a real workhorse impedance-matching circuit (see “Back to Basics: Impedance Matching (Part 2)” ). Is rg6 50 or 75 ohm? So a 50 Ohm cable […]