When the copper expands as hot water passes through it, it can bang into joints, brackets, other supports and even the walls of your home. Expanding copper and the noise that come with it is nothing to worry about – it is a well-known property of the metal. How doRead More →
Ans. (d) Knock in SI engine can be reduced by retarding spark and increasing the engine speed. How can the tendency of knocking in CI engine be reduced? The tendency of knocking in C I engine reduces by. High self – ignition temperature of fuel. … Injection of fuel justRead More →
The knocking or banging noise you hear coming from your walls usually occurs when air pressure builds in your water pipes. This pressure builds up and causes your pipes to vibrate once the pressure is released (when your faucets are turned on or your toilet is flushed). What animal makesRead More →
Fill up your tank only from reputable gas stations. However often you can afford, use fuel with higher octane ratings or be sure to follow your owner’s manual on recommended minimum octane ratings. What to do if you hear engine knocking? Some of the ways in which you can fixRead More →
If you notice a loud knocking sound only when you shut the water off – and not when it’s running – your plumbing is probably suffering from water hammer. … If your arrestors have failed, you’ll have to call in a professional plumber to install new ones. Knocking noises inRead More →
Knocking on wood is thought to come from the folklore of the ancient Indo-Europeans, or possibly people who predated them, who believed that trees were home to various spirits. Touching a tree would invoke the protection or blessing of the spirit within. What does the Bible say about knocking onRead More →