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Worksheets

UPD Session

Total questions: 7

Worksheet time: 6mins

Name
Class
Date
1.

In Below which one is not a Purpose of System Earthing

a)

Control Voltage to ground to specific Limits

b)

Limit Voltage Stress on Insulation of conductors

c)

Limit the Voltage of conductors to stress of Conductor

2.

Please Select any 2 Factors affecting Soil Resistivity

a)

Temperature

b)

Purified Watter

c)

Non Seasonal Variation

d)

Grain Size

3.

Earthing & Grounding is same??

a)

True

b)

False

4.

Types of Protection Relays Using in UPD Projects??

a)

Over Current & Earth fault Protection,Differential & Protective relay

b)

Over Current & Earth fault Protection,Differential Relay,REF

c)

Auxiliary Relay,Protection Relay,Voltage & Current Relay

5.

In Image What type of Fault Shown A&B

a)

Internal Fault & External Fault

b)

External Fault & Internal Fault

c)

Faults & Fault Protection

d)

External,Internal Fault & Fault Protection

6.

Please select the Purpose of Satellite Earthing

a)

Less than the Overall Resistance,Increase the system Potential

b)

Greater than the Overall Resistance,Increase of Ground Potential

c)

Lower the Overall Resistance,Increase of Ground Potential

d)

Higher the Overall Resistance,Decrease of Ground Potential

7.

Physiological Effects of AC Current in Human Body in 1mA its called

a)

Barely Perceptible

b)

Painful sensation

c)

Heart paralysis

d)

muscular contractions