Correct Answer  Option 1 : 1 and 20
Calculation:
e_{ss} = 5% = 0.05
∵ e_{ss} is finite with ramp input type of the system is 1
\({K_v} = \frac{1}{{0.05}} = 20\)
Zero – frequency gain of the system = 20
Steady state error for different inputs is given by
Input

Type 0

Type  1

Type 2

Unit step

\(\frac{1}{{1 + {K_p}}}\)

0

0

Unit ramp

∞

\(\frac{1}{{{K_v}}}\)

0

Unit parabolic

∞

∞

\(\frac{1}{{{K_a}}}\)
