Home
PDF Store
Exams
G.K.
Aptitude
Reasoning
English
Computer
Biology
Privacy
About
Contact
Home
All MCQ
Exams
PDF Store
G.K.
Aptitude
Reasoning
English
Computer
Biology
Privacy
About
Contact
What is the correct answer?
4
Thermal diffusivity of a substance is proportional to (where, k = Thermal conductivity)
A.
1/k
B.
k
C.
k
2
D.
1/k
2
Correct Answer :
B. k
Related Questions
Maximum amount of thermal radiation is emitted at all wavelengths at any…
Satellites burn off during re-entry to earth's atmosphere, because of…
Addition of __________ to steel does not impart hardness.
Which of the following phenomenon will exhibit the minimum heat transfer?
__________ test is the appropriate test to determine whether a material…
A fire tube boiler is limited to a maximum steam pressure of about __________…
The best lubricants for a machine working at high temperature & load is
The bank of tubes located at the back of the domestic refrigerators are…
With increase in temperature, the surface tension of water
Eutectoid composition of carbon steel at room temperature is
Nickel is a __________ material.
The activity co-efficient of the solute in a dilute solution
Which of the following can be manufactured using powder metallurgy techniques?
Basic open hearth furnace (BOF) is not used for producing __________ steel.
The most economical channel section for the fluid flow is the one for…
A material subjected __________ must have high resilience.
Material of construction of foundry crucible is
Circular cross section machine parts which are symmetrical about the axis…
Ammonia leakage in the refrigeration system is detected by
During sensible heating of humid air
The substance used as a smoke screen in warfare is
__________ test determines the yield strength, Young's modulus of elasticity,…
__________ is not a case hardening process.
For separating small pieces of metal from engine oil of a car, the best…
Titanium is produced by __________ of Ti Cl4.
Coarse grained steels have
A steam carrying pipeline is insulated with two layers of insulating materials…
The same volume of all gases is representative of their
Hot working of lead is carried out at
Which of the following materials does not form adherent oxide film on…
Also checkout
Astronomy MCQ
Races and Games MCQ
Man and Environment MCQ
Radiologic Examination MCQ
Co-Ordination Compound MCQ
Respiratory System MCQ
Alphabetical Series MCQ
Biology and Human Welfare MCQ
Percentage MCQ
Origin of Life and Organic Evolution MCQ
Certified Nursing Assistant MCQ
Rearrangement Set 3 MCQ