GATE EE 2018 | GATE EE Year Wise Previous Years Questions

GATE EE 2018

Numerical

-0

A 1000 $$ \times $$ 1000 bus admittance matrix for an electric power system has 8000 non-zero elements. The minimum number of branches (transmission lines and transformers) in this system are _____ (up to 2 decimal places).

Your input ____

GATE EE 2018

MCQ (Single Correct Answer)

-0.67

The positive, negative and zero sequence impedances of a three phase generator are Z₁, Z₂ and Z₀ respectively. For a line-to-line fault with fault impedance Z_f, the fault current is I_f1 = kI_f, where I_f is the fault current with zero fault impedance. The relation between Z_f and k is

$${Z_f} = {{\left( {{Z_1} + {Z_2}} \right)\left( {1 - k} \right)} \over k}$$

$${Z_f} = {{\left( {{Z_1} + {Z_2}} \right)\left( {1 + k} \right)} \over k}$$

$${Z_f} = {{\left( {{Z_1} + {Z_2}} \right)k} \over {1 - k}}$$

$${Z_f} = {{\left( {{Z_1} + {Z_2}} \right)k} \over {1 + k}}$$

GATE EE 2018

MCQ (Single Correct Answer)

-0.33

Consider a lossy transmission line with V₁ and V₂ as the sending and receiving end voltages, respectively. Z and X are the series impedance and reactance of the line, respectively. The steady-state stability limit for the transmission line will be

greater than $$\left| {{{{V_1}{V_2}} \over X}} \right|$$

less than $$\left| {{{{V_1}{V_2}} \over X}} \right|$$

equal to $$\left| {{{{V_1}{V_2}} \over X}} \right|$$

equal to $$\left| {{{{V_1}{V_2}} \over Z}} \right|$$

GATE EE 2018

MCQ (Single Correct Answer)

-0.3

"A common misconception among writers is that sentence structure mirrors thought; the more _________ the structure, the more complicated the ideas."

The word that best fills the blank in the above sentence is

detailed

simple

clear

convoluted

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