The kinematic viscosity (in stoke) and the absolute/dynamic viscosity (in poise) are the same for ______________ at room temperature ?
(A) Air
(B) Water
(C) Mercury
(D) Alcohol
Which of the following is resistant to the action of both heat & chemicals ?
(A) Borosilicate glass
(B) Silica glass
(C) Soda lime glass
(D) None of these
Two solutions A1 & A2 have pH value of 2 & 6 respectively. It implies that the solution ?
(A) A1 is more alkaline than solution A2
(B) A1 is highly acidic
(C) A2 is very slightly acidic
(D) Both
________________ is the hardest material out of the following ?
(A) Boron carbide
(B) Tungsten carbide
(C) Hardened steel
(D) Silicon carbide
_______________ is the most important element, which controls the physical properties of steel ?
(A) Manganese
(B) Silicon
(C) Carbon
(D) Vanadium
The taper provided on pattern for its easy & clean withdrawal from the mould is termed as the _______________ allowance ?
(A) Casting
(B) Pattern
(C) Draft
(D) Distortion
In the X-ray radiography technique, the tube voltage for thicker plates as compared to thin plates, should be________________?
(A) Higher, as it gives higher wavelength
(B) Lower, as it gives higher wavelength
(C) Higher, as it gives shorter wavelength
(D) Lower, as it gives shorter wavelength
The critical pressure at which the latent heat of vaporization of steam becomes zero is _____________ Kg/cm2 ?
(A) 273.15
(B) 225.65
(C) 100.03
(D) 373.15