Question
a.
0.5 m
b.
0.1 m
c.
0.2 m
d.
0.5 m
Posted under Mechanical Engineering
Interact with the Community - Share Your Thoughts
Uncertain About the Answer? Seek Clarification Here.
Understand the Explanation? Include it Here.
Q. A furnace is made of a red brick wall of thickness 0.5 m and conductivity 0.7 W/mK. For the same heat loss and temperature drop, this can be replaced by a layer of diatomite earth...
Similar Questions
Explore Relevant Multiple Choice Questions (MCQs)
Q. In a refrigeration system, the expansion device is connected between the
View solution
Q. The heat rejection factor (HRF) is given by
View solution
Q. Wein's law states that the wave length corresponding to __________ is proportional to the absolute temperature.
View solution
Q. In a domestic vapour compression refrigerator, the refrigerant commonly used is
View solution
Q. In case of sensible heating of air, the coil efficiency is given by (where B.P.F. = By-pass factor)
View solution
Q. The coefficient of performance (C.O.P.) is the reciprocal of the efficiency of a heat engine.
View solution
Q. The wet bulb temperature at 100% relative humidity is __________ dry bulb temperature.
View solution
Q. The freezing point of sulphur dioxide is
View solution
Q. The ratio of the energy absorbed by the body to the total energy falling on it, is called
View solution
Q. In order to cool and dehumidify a stream of moist air, it must be passed over the coil at a temperature
View solution
Q. The coefficient of performance of vapour compression refrigeration system is quite __________ as compared to air refrigeration system.
View solution
Q. In order to collect liquid refrigerant and to prevent it from going to a __________ , a device known as accumulator is used at the suction of compressor.
View solution
Q. Which of the following refrigerant has the lowest boiling point?
View solution
Q. During sensible cooling of air, the relative humidity increases.
View solution
Q. Sensible heat factor is given by (where S.H. = Sensible heat, and L.H. = Latent heat)
View solution
Q. Stefan-Boltzmann law is applicable for heat transfer by convection.
View solution
Q. The most commonly used method for the design of duct size is the
View solution
Q. In counter-current flow heat exchangers
View solution
Q. The rate of heat flow through a body is . The term x/kA is known as
View solution
Q. In actual air-conditioning applications for R-12 and R-22, and operating at a condenser temperature of 40° C and an evaporator temperature of 5° C, the heat rejection factor is about
View solution
Recommended Subjects
Are you eager to expand your knowledge beyond Mechanical Engineering? We've handpicked a range of related categories that you might find intriguing.
Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!
