1
GATE EE 2015 Set 1
MCQ (Single Correct Answer)
+1
-0.3
Base load power plants are
$$P.$$ wind farms
$$Q.$$ run-of-river plants
$$R.$$ nuclear power plants
$$S.$$ diesel power plants
A
P, Q and S only
B
P, R and S only
C
P, Q and R only
D
Q and R only
2
GATE EE 2015 Set 1
MCQ (Single Correct Answer)
+2
-0.6
Determine the correctness or otherwise of the following Assertion (a) and the Reason (R).
Assertion (A): Fast decoupled load flow method gives approximate load flow solution because it uses several assumptions.
Reason (R): Accuracy depends on the power mismatch vector tolerance.
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
Both (A) and (R) are false
D
(A) is false and (R) is true
3
GATE EE 2015 Set 1
MCQ (Single Correct Answer)
+1
-0.3
Consider a $$HVDC$$ link which uses thyristor based line commutated converters as shown in the figure. For a power flow of $$750$$ $$MW$$ from System $$1$$ to System $$2,$$ the voltages at the two ends, and the current, are given by: $${V_1} = 500\,kV,\,\,{V_2} = 485\,kV\,\,$$ and $$\,{\rm I} = 1.5\,kA.\,\,$$ If the direction of power flow is to be reversed (that is, from System $$2$$ to System $$1$$) without changing the electrical connections, then which one of the following combinations is feasible? GATE EE 2015 Set 1 Power System Analysis - High Voltage Dc Transmission Question 1 English
A
$${V_1} = - 500\,kV,\,\,\,{V_2} = - 485\,kV$$ and $$\,\,\,{\rm I} = 1.5\,kA$$
B
$${V_1} = - 485\,kV,\,\,\,{V_2} = - 500\,kV$$ and $$\,\,\,{\rm I} = 1.5\,kA$$
C
$${V_1} = 500\,kV,\,\,\,{V_2} = 485\,kV$$ and $$\,\,\,{\rm I} = -1.5\,kA$$
D
$${V_1} = - 500\,kV,\,\,\,{V_2} = - 485\,kV$$ and $$\,\,\,{\rm I} = -1.5\,kA$$
4
GATE EE 2015 Set 1
Numerical
+1
-0
A moving average function is given by $$y\left(t\right)=\frac1T\int_{t-T}^tu\left(\tau\right)d\tau$$. If the input u is a sinusoidal signal of frequency $$\frac1{2T}Hz$$, then in steady state, the output y will lag u (in degree) by ________.
Your input ____
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