1
GATE ME 2006
MCQ (Single Correct Answer)
+2
-0.6
A vibratory system consists of a mass $$12.5$$ kg, a spring of stiffness $$1000$$ $$N/m,$$ and a dashpot with damping coefficient of $$15$$ $$Ns/m.$$

The value of critical damping of the system is:

A
$$0.223$$ $$Ns/m$$
B
$$17.88$$ $$Ns/m$$
C
$$71.4$$ $$Ns/m$$
D
$$223.6$$ $$Ns/m$$
2
GATE ME 2006
MCQ (Single Correct Answer)
+2
-0.6
A vibratory system consists of a mass $$12.5$$ kg, a spring of stiffness $$1000$$ $$N/m,$$ and a dashpot with damping coefficient of $$15$$ $$Ns/m.$$

The value of logarithmic decrement is

A
$$1.35$$
B
$$0.42$$
C
$$0.68$$
D
$$0.66$$
3
GATE ME 2006
MCQ (Single Correct Answer)
+2
-0.6
Given below is an extract from steam tables. GATE ME 2006 Thermodynamics - Properties of Pure Substances Question 7 English

Specific enthalpy of water in $$kJ/kg$$ at $$150$$ bar and $$ {45^ \circ }C$$ is

A
$$203.60$$
B
$$200.53$$
C
$$196.38$$
D
$$188.45$$
4
GATE ME 2006
MCQ (Single Correct Answer)
+2
-0.6
Assertion (A): Condenser is an essential equipment in a steam power plant.

Reason(R): For the same mass flow rate and the same pressure rise, a water pump requires substantially less power than a steam compressor.

A
Both $$[a]$$ and $$[r]$$ are true and $$[r]$$ is the correct reason for $$[a].$$
B
Both $$[a]$$ and $$[r]$$ are true but $$[r]$$ is NOT the correct reason for $$[a].$$
C
$$[a]$$ is true but $$[r]$$ is false
D
$$[a]$$ is false and $$[r]$$ is true