Thermal diffusivity of a substance is ________?

2013Mechanical EngineeringMedium

Ainversely proportional to density of substance

Bdirectly proportional to thermal con¬ductivity

Cinversely proportional to specific heat

Dall of the above

Enone of the above

Correct answer

D. all of the above

Explanation

The correct answer is all of the above.

Related Mechanical Engineering MCQs

View all 2110 MCQs →

MCQ #2015

In order to increase sensitivity of U-tube manometer, one leg is usually inclined by angle 9. Sensitivity of inclined tube to sensitivity of U-tube is equal to________?

Ans: sin 9Read →

MCQ #2011

Equivalent evaporation of water is the evaporation “for a feed water supply at 100°C________?

Ans: and its corresponding conversion into dry saturated steam at 100°C and 1.033 kg/cm2Read →

MCQ #2016

Thermal efficiency of well maintained boiler will be of the order________?

Ans: 90%Read →

MCQ #2010

The ideal efficiency of simple gas turbine cycle depends on________?

Ans: pressure ratioRead →

MCQ #430

Bernoulli equation deals with the law of conservation of________?

Ans: energyRead →

MCQ #958

A jet engine works on the principle of conservation of________?

Ans: linear momentumRead →