SSC JE 2019- 20 Technaical Quiz 21

Shortest Processing Time (SPT) sequencing minimises the

Minimum shear strain in orthogonal turning with a cutting tool of zero rake angle is_____.

For manometer, a better liquid combination is one having

If the ratio of inner diameter (D_i) to outer diameter (D_o) is 2/3, then the ratio of torque carrying capacity of a solid shaft to that of a hollow shaft will be:

(Assume external diameter of both shafts to be equal and the shafts to be made of the same material)

In a Hartnell governor, the sleeve and ball arms are 80 and 160 mm respectively. The centrifugal forces at radius of 25 cm and 35 cm are 260 N and 490 N respectively. The stiffness of the spring used is:

What happens when supercharging is done for spark ignition engines?

If the COP of Carnot refrigerator is 4, then the thermal efficiency of the Carnot engine would be __________.