When you touch the hot sand heat is transferred by?

When you touch the hot sand heat is transferred by?
by

1 Answer

Answer :

Conduction
by
selected by

Related questions

In regenerative air preheater (as practised in heating of coke ovens), the heat is transferred (A) Through a metallic wall (B) By direct contact of hot flue gas with air (C) By heating an intermediate material (like chequor bricks) and then heating the air from this hot material (D) None of these

Description : In regenerative air preheater (as practised in heating of coke ovens), the heat is transferred (A) Through a metallic wall (B) By direct contact of hot flue gas with air (C) By ... material (like chequor bricks) and then heating the air from this hot material (D) None of these

Last Answer : (C) By heating an intermediate material (like chequor bricks) and then heating the air from this hot material

In pipe flow, heat is transferred from hot wall to the liquid by(A) Conduction only (B) Forced convection only (C) Forced convection and conduction (D) Free and forced convection

Description : In pipe flow, heat is transferred from hot wall to the liquid by(A) Conduction only (B) Forced convection only (C) Forced convection and conduction (D) Free and forced convection

Last Answer : (C) Forced convection and conduction

What is The energy transferred from hot to cold?

Description : What is The energy transferred from hot to cold?

Last Answer : Need answer

What makes heat transferred in all directions? -Physics

Description : What makes heat transferred in all directions? -Physics

Last Answer : Heat can spread out in all directions. There are three main ways for heat to travel:Radiation: All wavelengths of electromagnetic waves, including light, carry energy. When the electromagnetic waves strike an object, ... . For this reason, "heat" and "hot air" tend to be confused with each other.

An electric drill transfer some energy wastefully . aside from heat , what else carries the energy that is transferred wastefully?

Description : An electric drill transfer some energy wastefully . aside from heat , what else carries the energy that is transferred wastefully?

Last Answer : sound waves

In order for heat to be transferred by conduction, which of the following must occur?

Description : In order for heat to be transferred by conduction, which of the following must occur?

Last Answer : A hot object must go throught the cold object

How is heat transferred from the surface of a block of ice to its center?

Description : How is heat transferred from the surface of a block of ice to its center?

Last Answer : Need answer

What is the main way heat is transferred through the air from the fire to the fire fighter?

Description : What is the main way heat is transferred through the air from the fire to the fire fighter?

Last Answer : Feel Free to Answer

How can heat be transferred across space?

Description : How can heat be transferred across space?

Last Answer : Light energy, like from the sun.

When does the heat generated by fluid friction becomes appreciable compared to the heat transferred between the fluids? (A) At high fluid velocity (B) At low velocity (C) When fluid flows past a smooth surface (D) None of these

Description : When does the heat generated by fluid friction becomes appreciable compared to the heat transferred between the fluids? (A) At high fluid velocity (B) At low velocity (C) When fluid flows past a smooth surface (D) None of these

Last Answer : (A) At high fluid velocity

Pick out the wrong statement. (A) The condensing film co-efficient is about 3 times lower for vertical condenser as compared to the equivalent horizontal condenser for identical situation (B) Film co-efficient for vaporisation decreases as a result of vapor binding (C) In industrial practice, sub-cooling of condensate is required, when thecondensate is a volatile liquid and is to be transferred for storage(D) Overall heat transfer co-efficient in a heat exchanger is controlled by thevalue of the film co-efficient, which is higher

Description : Pick out the wrong statement. (A) The condensing film co-efficient is about 3 times lower for vertical condenser as compared to the equivalent horizontal condenser for identical situation ( ... in a heat exchanger is controlled by the value of the film co-efficient, which is higher

Last Answer : (D) Overall heat transfer co-efficient in a heat exchanger is controlled by the value of the film co-efficient, which is higher

Extended heat transfer surface like fins are used to increase the heat transfer rate. Fin efficiency is defined as the ratio of heat transferred across the fin surface to the theoretical heat transfer across an equal area held at the (A) Surrounding temperature (B) Average temperature of the fin (C) Temperature of the fin end (D) Constant temperature equal to that of the base

Description : Extended heat transfer surface like fins are used to increase the heat transfer rate. Fin efficiency is defined as the ratio of heat transferred across the fin surface to the theoretical heat transfer ... (C) Temperature of the fin end (D) Constant temperature equal to that of the base

Last Answer : (D) Constant temperature equal to that of the base

Convective heat transfer, in which heat is transferred by movement of warmed matter is described by (A) Fourier's law (B) Newton's law of cooling (C) Fick's law (D) None of these

Description : Convective heat transfer, in which heat is transferred by movement of warmed matter is described by (A) Fourier's law (B) Newton's law of cooling (C) Fick's law (D) None of these

Last Answer : (B) Newton's law of cooling

In salt bath furnace, heat is transferred to the charge mainly by (A) Conduction (B) Convection (C) Radiation (D) None of these

Description : In salt bath furnace, heat is transferred to the charge mainly by (A) Conduction (B) Convection (C) Radiation (D) None of these

Last Answer : (A) Conduction

The product of efficiency & heat transferred to the working fluid is? a. Net temperature change b. Net work done c. Net enthalpy change d. None of the mentioned

Description : The product of efficiency & heat transferred to the working fluid is? a. Net temperature change b. Net work done c. Net enthalpy change d. None of the mentioned

Last Answer : b. Net work done

The generated heat is transferred to water to make ______ the process of boiling. • Steam • Boiler • Both • None

Description : The generated heat is transferred to water to make ______ the process of boiling. • Steam • Boiler • Both • None

Last Answer : • Steam

The theory that heat consisted of a fluid, which could be transferred from one body to another, but not “created” or “destroyed”.  a. Clausius Theorem  b. Caloric Theory  c. Joules Law  d. Newton’s Law of cooling

Description : The theory that heat consisted of a fluid, which could be transferred from one body to another, but not “created” or “destroyed”.  a. Clausius Theorem  b. Caloric Theory  c. Joules Law  d. Newton’s Law of cooling

Last Answer : Caloric Theory

Ten cu. ft of air at 300psia and 400°F is cooled to 140°F at constant volume. What is the transferred heat?  a.-120Btu  b. -220Btu  c.-320Btu  d. -420Btu formula: Q= mcv(T2-T1)

Description : Ten cu. ft of air at 300psia and 400°F is cooled to 140°F at constant volume. What is the transferred heat?  a.-120Btu  b. -220Btu  c.-320Btu  d. -420Btu formula: Q= mcv(T2-T1)

Last Answer : -420Btu

A process by which heat is transferred through a material without a bulk movement of the material.  a. Convection  b. Conduction  c. Radiation  d. Emission

Description : A process by which heat is transferred through a material without a bulk movement of the material.  a. Convection  b. Conduction  c. Radiation  d. Emission

Last Answer : Conduction

The flow of a fluid when heat is transferred by convection.  a. placidity  b. mass flow  c. convection current  d. heat transfer

Description : The flow of a fluid when heat is transferred by convection.  a. placidity  b. mass flow  c. convection current  d. heat transfer

Last Answer : convection current

A process in which heat energy is transferred by the flow of fluid.  a. Convection  b. Conduction  c. Radiation  d. Sublimation

Description : A process in which heat energy is transferred by the flow of fluid.  a. Convection  b. Conduction  c. Radiation  d. Sublimation

Last Answer : Convection

Entropy is transferred by ______.  A. Work  B. Heat  C. Energy  D. Work and heat

Description : Entropy is transferred by ______.  A. Work  B. Heat  C. Energy  D. Work and heat

Last Answer : Heat

How is heat transferred?  A. By conduction  B. By convection  C. By radiation  D. All of the above

Description : How is heat transferred?  A. By conduction  B. By convection  C. By radiation  D. All of the above

Last Answer : All of the above

If there is no heat transferred during the process, it is called a ______ process.  A. Static  B. Isobaric  C. Polytropic  D. Adiabatic

Description : If there is no heat transferred during the process, it is called a ______ process.  A. Static  B. Isobaric  C. Polytropic  D. Adiabatic

Last Answer : Adiabatic

What is an energy that can be transferred from one object to another causing a change in temperature of each object?  A. Power  B. Heat transfer  C. Heat  D. Work

Description : What is an energy that can be transferred from one object to another causing a change in temperature of each object?  A. Power  B. Heat transfer  C. Heat  D. Work

Last Answer : Heat

In a Carnot cycle, heat is transferred at  (a) constant pressure  (b) constant volume  (c) constant temperature  (d) constant enthaply  (e) any one of the above.

Description : In a Carnot cycle, heat is transferred at  (a) constant pressure  (b) constant volume  (c) constant temperature  (d) constant enthaply  (e) any one of the above.

Last Answer : Answer : c

Change in internal energy in a closed system is equal to heat transferred if the reversible process takes place at constant  (a) pressure  (b) temperature  (c) volume  (d) internal energy  (e) entropy.

Description : Change in internal energy in a closed system is equal to heat transferred if the reversible process takes place at constant  (a) pressure  (b) temperature  (c) volume  (d) internal energy  (e) entropy.

Last Answer : Answer : c

Change in enthalpy in a closed system is equal to heat transferred if the reversible process takes place at constant  (a) pressure  (b) temperature  (c) volume  (d) internal energy  (e) entropy.

Description : Change in enthalpy in a closed system is equal to heat transferred if the reversible process takes place at constant  (a) pressure  (b) temperature  (c) volume  (d) internal energy  (e) entropy.

Last Answer : Answer : a

According to first law of thermodynamics  (a) work done by a system is equal to heat transferred by the system  (b) total internal energy of a system during a process remains constant  (c) internal energy, enthalpy and entropy during a process remain constant  (d) total energy of a system remains constant

Description : According to first law of thermodynamics  (a) work done by a system is equal to heat transferred by the system  (b) total internal energy of a system during a process remains constant  ( ... , enthalpy and entropy during a process remain constant  (d) total energy of a system remains constant

Last Answer : Answer : d

Explain how heat is transferred from the source of the article.

Description : Explain how heat is transferred from the source of the article.

Last Answer : Heat is Transferred from the source of the article by following Methods: 1. Conduction: The heat transfer takes place by transmission of momentum of individual molecule. Ex. Heat transfer in solid and ... liquid. 3. Radiation: Energy transfer takes place through space i.e without using any medium.

In EXTRA-TERRESTRIAL SPACE, heat is transferred by: w) conduction x) convection y) conduction and convention z) radiation

Description : In EXTRA-TERRESTRIAL SPACE, heat is transferred by: w) conduction x) convection y) conduction and convention z) radiation

Last Answer : ANSWER: Z -- RADIATION

Heat is transferred from the sun to the earth primarily by: w) conduction x) convection y) radiation z) condensation

Description : Heat is transferred from the sun to the earth primarily by: w) conduction x) convection y) radiation z) condensation 

Last Answer : ANSWER: Y -- RADIATION

One sunny afternoon, three men go for a ride on a hot air balloon over the Sahara desert. An hour into the trip, the balloon begins to lose altitude. A month later, someone found one of the ballooners laying on the desert sand dead, naked, and holding half a toothpick. What happened to him? -Riddles

Description : One sunny afternoon, three men go for a ride on a hot air balloon over the Sahara desert. An hour into the trip, the balloon begins to lose altitude. A month later, someone found one of the ballooners laying on the desert sand dead, naked, and holding half a toothpick. What happened to him? -Riddles

Last Answer : As the balloon lost altitude, the men took of their clothes and threw them overboard to decrease the weight of the balloon. The balloon continued to drop so the men drew straws to see who would be forced to jump. The dead man in the desert drew the shortest one (the half toothpick).

The mirage is seen in a hot desert because of (a) The density of the layer of air increases with altitude (b) The density of the layer of air decreases with altitude (c) The reflection of light from the layers of sand (d) The total internal reflection from sand

Description : The mirage is seen in a hot desert because of (a) The density of the layer of air increases with altitude (b) The density of the layer of air decreases with altitude (c) The reflection of light from the layers of sand (d) The total internal reflection from sand

Last Answer : Ans:(a)

What is the stage of the sand becoming a silicon? a. Liquid b. Gas c. Molten d. Hot

Description : What is the stage of the sand becoming a silicon? a. Liquid b. Gas c. Molten d. Hot

Last Answer : c. Molten

What is the stage of the sand becoming silicon? A. Hot B. Gas C. Liquid D. Molten

Description : What is the stage of the sand becoming silicon? A. Hot B. Gas C. Liquid D. Molten

Last Answer : D. Molten

What is the stage of the sand becoming a silicon? ∙ a. Liquid ∙ b. Gas ∙ c. Molten ∙ d. Hot What is the stage of the sand becoming a silicon? ∙ a. Liquid ∙ b. Gas ∙ c. Molten ∙ d. Hot

Description : What is the stage of the sand becoming a silicon? ∙ a. Liquid ∙ b. Gas ∙ c. Molten ∙ d. Hot

Last Answer : c. Molten

Why is the metal end of a thumb drive hot to the touch after copying files to it?

Description : Why is the metal end of a thumb drive hot to the touch after copying files to it?

Last Answer : Here’s the link that tells you why and a word of caution if it’s getting too hot because of defective ports.

What does a blood clot in the arm feel like and is the only way you know here is one by swelling and redness and hot to the touch?

Description : What does a blood clot in the arm feel like and is the only way you know here is one by swelling and redness and hot to the touch?

Last Answer : Go to the ER if you’re really worried you’ll die before you get a chance to go to the doctor.

My Flip Mino HD keeps saying "It's really Hot, Need to Cool Down" when it's cold to the touch?

Description : My Flip Mino HD keeps saying "It's really Hot, Need to Cool Down" when it's cold to the touch?

Last Answer : Were you making naughty videos?

When you touch something hot, a neuron in your finger senses the temperature. Which happens first?

Description : When you touch something hot, a neuron in your finger senses the temperature. Which happens first?

Last Answer : an action potential moves along the neuron

Are there any space heaters that are not hot to the touch?

Description : Are there any space heaters that are not hot to the touch?

Last Answer : Ceramic heaters are some of the newest heaters to hit the market; and they are not hot to the touch. They are a type of convection heater that uses ceramic plates and aluminun baffles. When the ceramic ... the heat into the room. The plastic casing on the outside keeps the heater cool to the touch.

Looks like water, But it's heat. Sits on sand, Lays on concrete. People have been known, To follow it everywhere. But it gets them no place, And all they can do is stare. -Riddles

Description : Looks like water, But it's heat. Sits on sand, Lays on concrete. People have been known, To follow it everywhere. But it gets them no place, And all they can do is stare. -Riddles

Last Answer : mirage #Hard #Long

What material holds heat longer soil sand or rock?

Description : What material holds heat longer soil sand or rock?

Last Answer : Feel Free to Answer

What animals would survive by burrowing under rocks and into the sand for protection from the heat and other animals?

Description : What animals would survive by burrowing under rocks and into the sand for protection from the heat and other animals?

Last Answer : Bats, many snakes, most rodents and some larger mammals like foxes and skunks, are nocturnal, sleeping in a cool den, cave or burrow by day. Some smaller desert animals burrow below the surface of the soil or sand to escape the high temperatures at the desert surface

Oxygen cylinders used for autogenous (cutting/welding) purposes are (A) Seamless & made of steel (B) Heat treated before use (C) Made by sand casting (D) Welded steel cylinders

Description : Oxygen cylinders used for autogenous (cutting/welding) purposes are (A) Seamless & made of steel (B) Heat treated before use (C) Made by sand casting (D) Welded steel cylinders

Last Answer : Option A

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

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.

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

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