The thermodynamic law, PVy = constant, is not followed by the __________________?
(A) Free expansion of an ideal gas
(B) Adiabatic expansion of steam in turbine
(C) Adiabatic compression of air
(D) Ideal compression of air
To counteract the bad effects of strain hardening on a cold formed part, it must be ______________________?
(A) Tempered
(B) Normalised
(C) Annealed
(D) Hardened
Liquid nitrogen containers can be made from ___________________?
(A) Ferritic stainless steel
(B) HSLA steel
(C) Titanium
(D) Austenitic stainless steel
When the wavelength of incident X-rays increases, the angle of diffraction__________________?
(A) Decreases
(B) Increases
(C) Remain constant
(D) Shows no systematic variation
________________ property of steel increases by addition of large amount of silicon in it?
(A) Mechanical
(B) Machining
(C) Magnetic
(D) Refractory
In case of condensers & evaporators operating under given terminal conditions, LMTD (logarithmic mean temperature difference) for counter flow as compared to that for parallel flow is__________________?
(A) More
(B) Less
(C) Equal
(D) Much more
At the point of boundary layer separation in fluid flow, the _____________________?
(A) Shear stress is maximum
(B) Velocity gradient is flat
(C) Density variation is maximum
(D) Shear stress is zero
The majority charge carriers in p-type silicon are______________________?
(A) Free electrons
(B) Ions
(C) Conduction electrons
(D) Holes
Quartz is a ________________ material ?
(A) Diamagnetic
(B) Ferromagnetic
(C) Ferroelectric
(D) Piezoelectric
Force between the molecules of the same substance is called ______________________ force?
(A) Adhesive
(B) Cohesive
(C) Molecular
(D) Vander Walls