Q. The ability of a substance to assume two or more crystalline structure is called

View solution

Q. The main function of the deaerator used in the thermal power plant is to

View solution

Q. Lubricants can be used to

View solution

Q. Which of the following is termed as the boiler mounting ?

View solution

Q. Paint spray gun works on the principle of

View solution

Q. The phenomenon of strain-ageing is generally experienced with

View solution

Q. The capacity of a material to absorb energy depends upon both its strength & stiffness. The term 'stiffness' of a material is the opposite of its

View solution

Q. Filler metal is not used in the __________ welding.

View solution

Q. The heat released by cooling one mole of copper from 400 K to room temperature (300 K) is (assume : Cp of copper is 23 J K⁻¹mole⁻¹)

View solution

Q. Sudden immersion/dipping of red hot steel bar in water makes it

View solution

Q. No cutting fluid is normally used, while machining

View solution

Q. An orthotropic material is a special class of anisotropic material, which is described by their properties in three perpendicular directions. An example of orthotropic material is

View solution

Q. pH value of rain water in India ranges from

View solution

Q. The capital & running costs of similar machines having unequal service life can be compared by the __________ method.

View solution

Q. Pick the odd man out.

View solution

Q. The speed of sound will be maximum in

View solution

Q. In case of water (Prandtl number ≈ 6) flowing over a flat plate heated over the entire length, the thermal boundary layer thickness as compared to hydrodynamic boundary layer thickness is

View solution

Q. __________ number is sometimes used in place of Grashoff number in free convection heat transfer.

View solution

Q. Wrought iron does not have the

View solution

Q. Hoope's cell is predominantly used for the electrolytic refining of

View solution