(A) Ordinary differential equation of nth order (X)
(B) Simultaneous non-linear equation ()
(C) Linear differential equation (X)
(D) None of these (X)
Answers: Runge-Kutta method is used to solve a/an Simultaneous non-linear equation .
(A) Spheroidising (X)
(B) Annealing ()
(C) Tempering (X)
(D) Normalising (X)
Answers: Machinability of hard alloys and tool steels is improved by Annealing.
The ratio of the shear stress to the principal stress on a principal plane is______________________?
(A) 0 ()
(B) 1 (X)
(C) 1/2 (X)
(D) 1/3 (X)
Answers; The ratio of the shear stress to the principal stress on a principal plane is 0.
(A) Ethyl alcohol (X)
(B) Carbon tetrachloride ()
(C) Glycerol (X)
(D) Ethylene glycol (X)
Answers: Which of the following is a commonly used manometric liquid for low pressure range Carbon tetrachloride .
(A) Iron (X)
(B) Copper ()
(C) Rubber (X)
(D) Nickel (X)
Answers: Copper has a negative co-efficient of linear expansion .
(A) 0.015 ()
(B) 0.055 (X)
(C) 0.505 (X)
(D) 0.805 (X)
Answers; Maximum permissible sulphur content in steel is 0.015 percent.