Description : Why does ice covered in sawdust not melt quickly ? (1) Sawdust does not allow the air to touch the ice (2) The water is absorbed by sawdust (3) Sawdust is a bad conductor of heat (4) Sawdust is good conductor of heat
Last Answer : Sawdust is a bad conductor of heat
Description : If an alternator is to be inactive for a considerable period of time, which of the following actions should be taken? A. It should be disconnected from the prime mover and raised off its bearing supports ... . D. The windings and collector rings should be protected with a thin coat of grease or oil.
Last Answer : Answer: C
Description : Why does ice coverfed in sawdust ct melt quickly? (1) Sawdust does not allow the air to touch the ice (2) The water is absorbed by sawdust (3) Sawdust is a bad conductor of heat (4) Sawdust is good conductor of heat
Last Answer : (3) Sawdust is a bad conductor of heat Explanation: Ice needs to absorb heat energy to melt and become water (called latent heat of fusion). Since saw-dust is a poor conductor of heat, it takes ... required heat energy. This allows ice to remain in solid state for more time when packed in saw dust.
Description : Ice is packed in sawdust because –
Last Answer : Sawdust is a poor conductor of Heat
Description : Ice is packed in saw dust because – (1) saw dust will not get melted easily. (2) saw dust is poor conductor of heat. (3) saw dust is a good conductor of heat. (4) saw dust does not stick to the ice.
Last Answer : (2) saw dust is poor conductor of heat. Explanation: ice needs to absorb heat energy to melt and become water (called latent heat of fusion). Since saw-dust is a poor conductor of heat, it takes ... required heat energy. This allows ice to remain in solid state for more time when packed in saw dust.
Description : Ice is packed in saw dust because (1) saw dust will not get melted easily. (2) saw dust is poor conductor of heat. (3) saw dust is a good conductor of heat. (4) saw dust does not stick to the ice.
Last Answer : saw dust is poor conductor of heat.
Description : Why it is sometimes necessary to preheat the base material before welding? a) To remove oil and grease b) To remove moisture from inside the material c) To prevent the possible risk of cracking d) Not required if using cellulosic electrodes as these will provide enough heat
Last Answer : c) To prevent the possible risk of cracking
Description : The removal of paint from electrical equipment, such as generators, should be cautiously undertaken because ____________. A. the mechanical shock of paint removal lessens the dielectric strength ... phase windings frequently become isolated from each other due to dust interference at the terminals
Last Answer : Answer: B
Description : A 10 cm dia steam pipe, carrying steam at 180°C, is covered with an insulation (conductivity = 0.6 W/m.°C). It losses heat to the surroundings at 30°C. Assume a heat transfer co-efficient of 0 ... that of the un-insulated steam pipe (D) Less than the steam pipe with 5 cms insulation
Last Answer : (B) Less than that of the un-insulated steam pipe
Description : When a bare thermocouple is covered by a protective sheath, the response becomes (A) Faster and oscillatory (B) Faster and non-oscillatory (C) Slower and oscillatory (D) Slower and non-oscillatory
Last Answer : (D) Slower and non-oscillatory
Description : In the cables, sheaths are used to (a) prevent the moisture from entering the cable (b) provide enough strength (e) provide proper insulation (d) none of the above
Last Answer : (a) prevent the moisture from entering the cable
Description : The ‘sheath’ is used in cable to (A) provide strength to the cable. (B) provide proper insulation. (C) prevent the moisture from entering the cable. (D) avoid chances of rust on strands.
Last Answer : Ans: A The sheath in underground cable is provided to give mechanical strength.
Description : The cloudy nights are warmer compared to clear nights (without clouds) during winter days. This is because: (A) clouds radiate heat towards the earth (B) clouds prevent cold wave from the sky, ... (D) clouds being at great heights from earth absorb heat from the sun and send towards the earth
Last Answer : (C) clouds prevent escaping of the heat radiation from the earth
Description : Do vampires use Iphones with their bare hands?
Last Answer : I would say yes. The vampire needs to have enough resources like money or if not money then some sort of influence to exert upon a familiar do things that he couldn’t do himself. The vampire could then use the iPhone using his hands. But not when he is in the form of a mist, bat or wolf. Obviously.
Description : What's something that you would never touch with your bare hands?
Last Answer : Ungrounded electrical wiring. Human babies.
Description : I sit here collecting dust, I can wait forever to open me and you will not be disappointed, I can make you laugh, cry, and sad, I contain all the knowledge of the world, let me take you to a far away land. What am I? -Riddles
Last Answer : A book.
Description : Before testing insulation with a megohmmeter, the windings of large machines should be grounded for about 15 minutes just prior to the test, because the ___________. A. static charge of the machine ... number of leakage paths C. insulation may be damaged D. insulation may be covered with moisture
Last Answer : Answer: A
Description : The greatest detrimental effect on idle electrical equipment, such as cargo pump motors, is the _____________. A. loss of residual magnetism B. absorption of moisture in the insulation C. insulation varnish flaking D. dirt collecting on the windings
Description : When a warm air is lifted off the surface in temperature depression it is called ----? A. An occlusion (Answer) B. A cold front C. An anticyclone D. A warm front
Last Answer : A. An occlusion (Answer)
Description : What type of heat transfer does insulation prevent?
Last Answer : Feel Free to Answer
Description : The primary function of the feathers in birds is to A. Provide insulation for preserving body heat B. Provide striking surface to the wings for flying C. Make the body surface waterproof D. Impart colouration for species as well as sex recognition
Last Answer : ANSWER: B
Description : The primary function of the feathers in birds is to -----? A. Provide insulation for preserving body heat B. Provide striking surface to the wings for flying (Answer) C. Make the body surface waterproof D. impart coloration for species as well as sex recognition
Last Answer : B. Provide striking surface to the wings for flying (Answer)
Description : As long as the government provides welfare, would it be a good business practice to pay workers the bare minimum and not provide benefits?
Last Answer : It works for walmart.
Description : Which statement is true about a bare metal hypervisor? A. It can only be hosted on an existing operating system. B. It requires a separate license for the native operating system. C ... system. D. It runs directly on server hardware to provide virtual machines with timesharing resources.
Last Answer : It runs directly on server hardware to provide virtual machines with timesharing resources.
Description : A generator has been exposed to water and is being checked for its safe operation. Therefore, it is necessary to _______________. A. check for shorted coils with a growler B. take moisture readings with a ... a megger D. ground the commutator, or slip rings and run it at half load for 12 hours
Description : Moisture accumulating in electric motors and generator windings having a cold insulation resistance greater than 50,000 ohms may be baked out with internal heat. This heat can be developed by ____________. ... an electric welder and feeding it into the armature while running the motor at full speed
Description : On my own, I am darkness, a black abyss. But, Life brings me light with its gentle kiss. I am quiet and cold, but warmth I can hold. Alongside beauties and wonders, sights to be told. My surface may ... earth I have come, and forever will stay, even if parts of me crumble away. What am I? -Riddles
Last Answer : A cave.
Description : I live in Chicago and my cement basement floor is cold, so I am reluctant to ground myself bare foot on that surface. Could I get grounded there by using an un-insulated metal container, filled with warm water and still get the same results?
Last Answer : Back to Top he floor is uncomfortable, you can use a metal conta le, you can use a metal container as you suggest.
Description : I have some bags of sawdust. Is it possible to drown in the stove with it?
Last Answer : Probably not for flooding, but I stopped a small amount (so one bag) of sawdust by pouring the sawdust into flour bags, sugar, various boxes and boxes. She always stuffed it up and put it on a low layer of still-burning coal and covered it with more coal.
Description : I wipe a lot of fine sawdust on the floor every day. There are more and more of them. What can it be? It's falling out of the closet. It was as if someone had taken a soft sanding at night and sipped the closet.
Last Answer : Wood-destroying beetle, wormwood. Apparently. Try to find small holes in the wood. Alternatively, tap and watch where it falls from. We do not envy you.
Description : How Sawdust can be used in filtration for waste water treatment?
Last Answer : Filtering the waste water through sawdust will remove largepieces of solid matter (such as grit, paper etc).
Description : Is sawdust a compound or a mixture?
Last Answer : compound
Description : Can wood chips, sawdust, bark, or shavings be composted?
Last Answer : Because they’re so slow to compost, it’s better to just spread them as “mulch” under trees and shrubs, where they control weeds and hold moisture.
Description : What pattern would be formed if sawdust was sprinkled on the glass instead of iron filings?
Last Answer : No specific pattern, sawdust is a nonmagnetic material.
Description : Cloudy nights are wanner compared nights, because clouds mainly – (1) Absorb heat from the atmosphere send it towards earth (2) Prevent cold waves from the sky descending on earth (3) Reflect back the heat given by earth (4) Produce heat and radiate it toward earth
Last Answer : (3) Reflect back the heat given by earth Explanation: It is because the night side of Earth will radiate infra-red radiation (heat) back into space. When there is cloud cover, the clouds act like a blanket and trap the heat close to the ground just like a blanket traps heat close to our body.
Description : Cloudy nights are warmer compared nights, because clouds mainly (1) absorb heat from the atmosphere send it towards earth (2) prevent cold waves from the sky descending on earth (3) reflect back the heat given by earth (4) produce heat and radiate it toward earth
Last Answer : reflect back the heat given by earth
Description : Before testing insulation with a megohmmeter, the windings of large machines should be grounded for about 15 minutes just prior to the test as the ______________. A. insulation may be damaged ... number of leakage paths D. larger machines may acquire a charge of static electricity during operation
Last Answer : Answer: D
Description : Scientists have proven that cats have more hair on one side then their other side. Some people believe that this is because when cats lay on their side they need insulation from the cold on the floor or ground.Which side of a cat has more hair? -Riddles
Last Answer : Well Duh! The outside of the Cat of course!
Description : Mark the correct option a) Minor cannot appoint a messenger for making withdrawal from SB account b) At the time of making a withdrawal by cheque from saving account not necessary to provide pass book ... added in a saving account may not be treated as transaction in that account d) All the above
Last Answer : d) All the above
Description : How do you deal with mask mandates being lifted and being paranoid to return to normal life?
Last Answer : You can still protect yourself and wear one. Keep distance to others. Do as much online shopping you can instead of going out if you don't feel comfortable being among others.
Description : What is your opinion on the ban being lifted on the media coverage of returning fallen soldiers?
Last Answer : That which is denied, becomes more sought after.
Description : Do you think I can use silicone dishes to make large blocks of ice?
Last Answer : answer:You can always freeze a gallon milk carton jug filled with water. Then just cut the plastic away after it solidifies. Don’t fill them all the way though, as liquid obviously expands when frozen. I do it all the time for when I’ll be in the sun all day in my canoe.
Description : Would using an old refrigerator that takes blocks of Ice as the refrigerant be better for any reason?
Last Answer : Energy is still used. That ice has to come from somewhere and then it has to be delivered.
Description : Which of the following parameters is not responsible for the heat loss from a hot steam carrying bare pipe surface located in a room without fans? (A) Emissivity of pipe surface (B) Diameter & length of the pipe (C) Temperature of hot pipe surface & that of air in the room (D) None of thes
Last Answer : Option D
Description : Which of the following statements about the sales force in the 21st century is true? A. Sales managers will use a hands-off approach and let the professional salesperson be his or her own boss B ... touch E. All of the above statements about the sales force in the 21st century are true.
Last Answer : C. Sales management must be smart and nimble and provide technology-centered solutions to support the sales effort
Description : How many joules of heat are necessary to melt 500 g of ice at it's freezing point?
Last Answer : Heat required to melt 1 g of ice at 0°C is approximately 80 cal . This is also called latent heat of fusion of ice.
Description : If overloading a DC machine becomes necessary in an emergency, you should ____________. A. cool the machine with portable blowers and fans B. hold thermal overload relays open with blocks of ... the windings for cooling D. increase the residual magnetism value of windings to reduce eddy currents
Description : My favorite shirt just got covered in blood. My hands are bloody too. It is my blood.
Last Answer : spray stain remover on the blood and wash it it should come out really easily. You have time to go out and buy some if you don’t have any because i had blood on a shirt of mine for a work before i washed it out.
Description : I have heard of a something-or-other, growing in its nook, swelling and rising, pushing up its covering. Upon that boneless thing a cocky-minded young woman took a grip with her hands; with her apron a lord’s daughter covered the tumescent thing. What is it? -Riddles
Last Answer : Dough turning into bread.
Description : In order to prevent the expansion of deserts, trees are planted in strips or blocks with the shortest trees on the desert side and tallest on the other side. Such plantation is called? (1) shelter belts (2) agroforests (3) wind breaks (4) social forests
Last Answer : (3) wind breaks Explanation: A windbreak or shelterbelt is a plantation usually made up of one or more rows of trees or shrubs planted in such a manner as to provide shelter from the ... benefits include providing habitat for wildlife and in some regions the trees are harvested for wood products.