SSC JE Electrical Engineering 2011
Instructions
For the following questions answer them individually
Question 131
If the speed of a universal motor in AC operation is $$N_{AC}$$ and in DC operation is $$N_{DC}$$, (and I = current, V = supply voltage, r = resistance, X = reactance, $$\cos \phi$$ = power factor) then the speed ratio
Question 133
If the frequency of a transmission system is changed from 50 Hz to 100 Hz, the string efficiency
Question 136
A power insulator has 4 units. The voltage across the bottom-most unit is 33.33% of the total voltage. Its string efficiency is
Question 139
Which one is the disadvantage of oil when used as an arc extinguishing medium in the oil circuit breaker
Question 140
If the discharge voltage of a thyrite arrester is 373 kV rms and the rated voltage is 211kV rms, the discharge factor of the arrester is
CAT Quant Questions | CAT Quantitative Ability
Linear Equations
Inequalities
Quadratic Equations
Averages, Ratios & Proportions
Profit & Loss
Number Systems
Time, Distance & Work
Geometry
Progressions & Series
Probability Combinatorics
Venn Diagrams
Data Sufficiency
Logarithms, Surds & Indices
Functions, Graphs & Statistics
Miscellaneous
CAT DILR Questions | LRDI Questions For CAT
DI Basics
DI Charts
Data Interpretation
DI Data Change Over Period
Tables With Missing Values
DI Venn Diagrams
DI Special Charts
DI Maxima & Minima
Quant-Based DI
DI Connected Sets
DI Miscellaneous
LR Arrangement
LR Selections With Conditions
LR Coins & Weights
LR Truth & Lie
LR Puzzles
LR Scheduling
LR Games & Tournaments
2D & 3-D LR
Quant-Based LR
LR Miscellaneous
