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WorksheetsSLA Industrial Visit At Substation 133KV/33KV
Total questions: 10
Worksheet time: 5mins
Q.1) Electricity Generated at
33KV Single Phase
11KV Single Phase
133KV Three Phase
11 KV Three Phase
Q.2) What was the purpose of the lightning arrester installed at the visited substation
Prevent devices from High Voltage Damage
prevent lightning damage to the apparatus because of high voltages
Prevent devices from Short Circuit Current
Prevent devices from over Load Current
Q.3) What was the purpose of the Coupling Capacitor installed at the visited substation
Remove Low frequency Signal
Boost the charging Current
Remove High Frequency Signal
Boost the Voltage
Q.4) In Step Down Transformer Secondary Voltage (V2) Less than Primary Voltage (V1) because
N1=N2
N2>N1
N2<N1
V2>V1
Q.5) In an optical fiber cable, how does the signal travel?
In the form of Voltage Pulses
In the form of Current Pulses
In the form of Light
In the form of Sound Pulses
Q.6) What is the voltage of the three-phase supply at DP
Single Phase 230 v ,50Hz
630 v ,50Hz
Three Phase (RYB) 420V, 50Hz
Three Phase
(RYB)
630v,50Hz
Q.7)What class of fire extinguisher is suitable for extinguishing electrical fires?
Class A
Class B
Class C
Class D
Q.8)Which class of fire extinguisher is designed for fires involving ordinary combustible materials such as wood, paper, and cloth?
Class A
Class B
Class C
Class D
Q.9) Why do conductors used at substations have steel at the center and aluminum at the outer side?
Aluminum is costly Material
Skin Effect (AC Current flowing through conductor Mostly prefer to flow over surface rather than center of conductor
Steel is conductor
Aluminum is conductor than Steel
Q.10) What is Function of CT
Step down High Value current for Measurement
offer High Resistance
Step up Current
Step Up Frequency
