What is the level of expansion coefficient ?

1 Answer

Answer :

The levels of expansion coefficient are alpha , beta and gamma.

Related questions

Last Answer : The unit of expansion coefficient is K ^ -1 .

Description : When hot liquid is poured into a thick glass tumbler, it cracks because glass – (1) is a bad conductor of heat so only inner surface expands (2) has high temperature coefficient of expansion (3) has a very low specific heat (4) has low temperature coefficient of expansion

Last Answer : (1) is a bad conductor of heat so only inner surface expands Explanation: When hot liquid is poured into a thick glass tumbler, it cracks because glass is a bad conductor of heat so only inner surface expands.

Description : When a ring of metal is heated what happens to its hole? (1) expands (2) contracts (3) it expands or contracts according to its diameter (4) it expands or contracts according to its coefficient of expansion

Last Answer : (1) expands Explanation: The hole size will increase because in expansion the size between two molecules, do not increase so when the molecules on the outer edge move outward. Due to expansion, the ... expansion is the tendency of matter to change in volume in response to a change in temperature.

Description : Gas thermometers are more sensitive than the liquid thermometers because the gases – (1) have large coefficient of expansion (2) are lighter (3) have low specific heat (4) have high specific heat

Last Answer : (1) have large coefficient of expansion Explanation: Gases are more sensitive to the temperature than liquids (such as mercury). That means gas expands more than the mercury for the same increase of temperature. Hence the has thermometer is more sensitive than liquid (mercury) thereto-meter.

Description : Gas thermometers are more sensitive than the liquid thermometers because of the gases - (1) have low specific heat (2) have high specific heat (3) have large coefficient of expansion (4) are lighter

Last Answer : (1) have low specific heat Explanation: Gas thermometers are more sensitive because gas has low specific heat than liquids.

Description : Gas thermometers are more sensitive than the liquid thermometers because the gases (1) have large coefficient of expansion (2) are lighter (3) have low specific heat (4) have high,specific heat

Last Answer : have large coefficient of expansion

Description : When hot liquid is poured into a thick glass tumbler, it cracks because glass : (1) is a bad conductor of heat so only inner surface expands (2) has high temperature coefficient of expansion (3) has a very low specific heat (4) has low temperature coefficient of expansion

Last Answer :  is a bad conductor of heat so only inner surface expands 

Description : When a ring of metal is heated what happens to its hole ? (1) expands (2) contracts (3) it expands or contracts according to its diameter (4) it expands or contracts according to its coefficient of expansion

Last Answer : expands

Description : What, besides coefficient of expansion, could make two pieces of glass incompatible for firing together?

Last Answer : Melting point would be my guess. The Fuseworks is for microwave kiln use.

Description : The coefficient of x in the expansion of (x + 3)3 is -Maths 9th

Last Answer : (d) Now, (x + 3)3 = x3 + 33 + 3x (3)(x + 3) [using identity, (a + b)3 = a3 + b3 + 3ab (a + b)] = x3 + 27 + 9x (x + 3) = x3 +27 + 9x2+27x Hence, the coefficient of x in (x + 3)3 is 27.

Description : The coefficient of x in the expansion of (x + 3)3 is -Maths 9th

Last Answer : (d) Now, (x + 3)3 = x3 + 33 + 3x (3)(x + 3) [using identity, (a + b)3 = a3 + b3 + 3ab (a + b)] = x3 + 27 + 9x (x + 3) = x3 +27 + 9x2+27x Hence, the coefficient of x in (x + 3)3 is 27.

Description : Write the coefficient of y in the expansion of (5-y) to the whole square. -Maths 9th

Last Answer : Solution :-

Description : On which subject does the length expansion coefficient depend ?

Last Answer : : The length expansion coefficient depends on the temperature scale , the nature of the object.

Last Answer : difficult Of matter No One Direction Growth Says Length Expansion , area Growth Says Field Expansion And Of volume Growth Says Volume Expansion ! Expansion Coefficient Three Type.

Description : Find the coefficient of `x^(3)` in the expansion of `(x^(2)+(1)/(3x^(3)))^(4)`

Last Answer : Find the coefficient of `x^(3)` in the expansion of `(x^(2)+(1)/(3x^(3)))^(4)`

Description : Find the coefficient of `x^(-5)` in the expansion of `(2x^(2)-(1)/(5x))^(8)`

Last Answer : Find the coefficient of `x^(-5)` in the expansion of `(2x^(2)-(1)/(5x))^(8)`

Description : The coefficient of `y^(7)` in the expansion of `(y+z)^(7)` is ____________

Last Answer : The coefficient of `y^(7)` in the expansion of `(y+z)^(7)` is ____________

Description : The coefficient of x in the expansion of `(2x+3)^(5)` is __________

Last Answer : The coefficient of x in the expansion of `(2x+3)^(5)` is __________

Description : Consider the following statements- (I) The coefficient of linear expansion has dimension K^-1

Last Answer : Consider the following statements- (I) The coefficient of linear expansion has dimension K-1 (II) The ... wrong (D) I and II are both wrong

Description : A material has a coefficient of volume expansion of 60×10^-6/degree celsius. What is its coefficient of expansion?

Last Answer : 120×10^-6

Description : Concrete containing (A) Siliceous aggregates, has higher co-efficient of expansion (B) Igneous aggregates, has intermediate coefficient of expansion (C) Lime stones, has lowest co-efficient of expansion (D) All the above

Last Answer : Answer: Option D

Description : Manganese steels (A) Are non-magnetic (B) Possess high electrical resistance (C) Possess low coefficient of expansion (D) All the above

Last Answer : Answer: Option D

Description : Pick up the correct statement from the following: (A) Plastics have generally low melting point (B) The coefficient of thermal expansion of plastics is about three times than that of steel (C) ... fibre-glass with phenolic resins has absorption coefficient of about 0.67 (D) All the above

Last Answer : Answer: Option D

Description : For most solids, the coefficient of volume expansion is _________ the coefficient of linear expansion.  a. unrelated to  b. proportional to  c. twice  d. three times

Last Answer : three times

Description : What is a measure of the ability of a material to conduct heat?  A. Specific heat capacity  B. Coefficient of thermal expansion  C. Coefficient of thermal conductivity  D. Thermal conductivity

Last Answer : Thermal conductivity

Description : Concrete contains (i)Siliceous aggregates, having higher coefficient of expansion (ii)Igneous aggregates, having intermediate coefficient of expansion (iii)Lime stones, having lowest coefficient of expansion [ A ] i and iii [ B ] ii and iii [ C ] i and ii [ D ] i, ii and iii

Last Answer : [ D ] i, ii and iii

Description : Will the coefficient of expansion varies between A106 and A333 Grade 6 ?

Last Answer : No

Description : What is an important requisite for fillers in dental composite restorative resins in load bearing areas: A. Sub micro sized particles B. High coefficient of thermal expansion C. High in content (High filler)

Last Answer : C. High in content (High filler)

Description : .In regard to the glass of quartz particles of filling restorative resin; the microfill resins tend to have, A. A higher coefficient of thermal expansion and a higher crashing strength B. ... and a higher crashing strength D. A lower coefficient of thermal expansion and a lower crashing strength

Last Answer : B. A higher coefficient of thermal expansion and a lower crashing strength

Description : The fractional change in resistance per kelvin is known as, a. temperature coefficient of resistance b. coefficient of Voltage of charge c. thermal expansion d. all of above

Last Answer : a. temperature coefficient of resistance

Description : A rod 3 m long is heated from 10°C to 90°C. Find the expansion of rod. Take Young’s modulus = 1.0 x 10^5 MN/m2 and coefficient of thermal expansion = 0.000012 per degree centigrade. 1. 0.168 cm 2. 0.208 cm 3. 0.288 cm 4. 0.348 cm

Last Answer : 3. 0.288 cm

Description : Does anyone know the coefficient of friction for an A rated tire?

Last Answer : answer:I can't give you an exact number on that, but I the A traction grade is the second-highest rating given to a tire, AA being the highest. The traction grade applies to wet ... 'd see on a skidpad test. There, you have sidewall construction and vehicle characteristics to consider as well.

Description : How to determine Axial Force Coefficient in Ansys Fluent ? -Physics

Last Answer : I want to determine the aerodynamic coefficients of a 2D model (solid boosters). To be clear with the model, It is a 2D axisymmetric model, with blunt nose and flared aft body. There is a ... jet pressure ratio. Am I missing something or is there any other method to find axial force coefficient.

Description : Define the performance coefficient of a refrigerator. ?

Last Answer : : The ratio of heat removed from low temperature heat to work performed by an outside company is called the performance coefficient of the refrigerator.

Description : What is heat transfer coefficient ?

Last Answer : The method by which the molecules of a substance do not change their own position but simply give a molecule heat to its adjacent molecule by vibration and transfer heat from the warmer part to the cooler part of the substance is called heat transfer coefficient.

Last Answer : The ratio of stress to distortion is called elastic coefficient.

Last Answer : The unit of elastic coefficient is Nm ^ -2 .

Description : When temperature rises, resistance of negative temperature coefficient thermistor A. increases B. decreases C. zero D. infinity

Last Answer : decreases

Description : Incorrect statement for co-efficient of friction could be that A. The coefficient of friction is denoted by the Greek letter µ. B. The coefficient of friction is directly proportional to ... D. The coefficient of friction is inversely proportional to the force pressing the surfaces together

Last Answer : The coefficient of friction is constant even in the conditions of fast slipping and high contact pressure

Description : Ice skating is possible and practical because of a unique property of water. Is it because: w) The coefficient of kinetic friction of steel on frozen water decreases with decreasing temperature x ... sublimes y) The melting point decreases with increasing pressure z) Ice is a good thermal insulator 

Last Answer : ANSWER: Y -- THE MELTING POINT DECREASES WITH INCREASING PRESSURE 

Description : What is the exceptional expansion of water ?

Last Answer : At 4 ° C water expands whether it is heated or cooled. This is an exception to the general rule of fluidity. So this expansion of water is called exceptional expansion.

Description : What is the apparent expansion expressed by ?

Last Answer : The apparent expansion is expressed by Va

Description : What is the extent of expansion ?

Last Answer : The degree of expansion is L

Description : Which type of material has the least expansion in heat application ?

Last Answer : The expansion of solids is the least in the application of heat

Description : What is expansion ?

Last Answer : All matter is made up of tiny particles. When heat is applied to solid , liquid, and gaseous matter, the particles absorb heat and vibrate. As a result, the gravitational pull of the substance decreases and its volume increases. And this is the expansion of matter.

Description : What is actual expansion ?

Last Answer : If it is possible to heat a liquid without placing it in a container, the volume expansion of the liquid that can be obtained is called the actual expansion of the liquid.

Description : What is the apparent expansion ?

Last Answer : Regardless of the expansion of the vessel , the expansion of the liquid is called the apparent expansion of the liquid.

Description : In a railway track, two rails are joined end to end with a gap in between them because – (1) steel can be saved (2) accidents due to contraction in winter can be avoided (3) air-gaps are necessary for bearing the weight of running train (4) accidents due to expansion in summer can be avoided.

Last Answer : (4) accidents due to expansion in summer can be avoided. Explanation: The volume of materials changes depending on current temperature. Usually heat makes them expand, and cold leads them to contract. ... on the tracks. The same applies in many other fields of engineering, i.e. bridge building.

Description : In a refrigerator what produces the cooling? (1) The ice which deposits on the freezer (2) The sudden expansion of a compressed gas (3) The evaporation of a volatile liquid (4) None of these

Last Answer : (4) None of these Explanation: Basically, refrigeration system consists of devices that compress and expand refrigerant gas. When refrigerant gas is compressed it expels heat and when it is suddenly ... inside of the fridge is cooled to a temperature below the ambient temperature of the room.

Description : Which of the following are methods of heat transfer? (1) Convection (2) Evaporation (3) Revolution (4) Thermal Expansion

Last Answer : (1) Convection Explanation: Convection is the transfer of heat from one place to another by the movement of fluids. It is usually the dominant form of heat transfer (convection) in liquids and ... the combined processes of conduction (heat diffusion) and advection (heat transfer by bulk fluid flow).