Thermal conductivity of a material may be defined as the

Mr. Dubey • 52.30K Points
Coach

Q. Thermal conductivity of a material may be defined as the

(A) quantity of heat flowing in one second through one cm cube of material when opposite faces ^re maintained at a temperature difference of 1°C

(B) quantity of heat flowing in one second through a slab of the material of area one cm square, thickness 1 cm when its faces differ in temperature by 1°C

(C) heat conducted in unit time across unit area through unit thickness when a temperature difference of unity is maintained between opposite faces

(D) all of the above

Correct : Option (D)

Discusssion

Be the first to start discuss.

Q. Manganese is added to steel primarily to increase

Q. In case of break even analysis, a change in product mix is likely to influence

Q. In a binary system, separation is very efficient, when the relative volatility is

Q. The command used to open a CURSOR FOR loop is

Q. Which calorimeter is used to find calorific values of gaseous fuels?

Q. For concentrating an aqueous solution of a material like anhydrous Na2SO4, whose solubility decreases with rise in temperature, the most suitable evap

Q. In a boundary lubricated bearing, there is a __________ of lubricant between the journal and the bearing.

Q. Which operation can correct hole location, size or alignment of the hole which is already drilled in workpiece?

Q. The static balancing is satisfactory for low speed rotors but with increasing speeds, dynamic balancing becomes necessary. This is because, the

Q. Thermal conductivity of a material may be defined as the

Discusssion

Related MCQs