Earthing Or Grounding - Practice Test

(A) to provide low impedance

(B) to discharge the charging capacitance to ground

(C) protection for operating personnel

(D) both (B) and (C)

(D) both (B) and (C)

(A) to provide as low resistance possible to the ground

(B) to provide as high resistance possible to the ground

(C) to provide flow of positive, negative and zero sequence currents

(D) none of the above

(A) to provide as low resistance possible to the ground

(A) depth of the electrode

(B) moisture

(C) Nacl

(D) all the above

(D) all the above

(A) voltage potential at the earth mat increases due to grounding

(B) voltage potential at the earth mat decreases due to grounding

(C) voltage potential at the earth mat remains zero irrespective of fault

(D) none of the above

(A) voltage potential at the earth mat increases due to grounding

(A) 500 ohms

(B) 1000 ohms

(C) 1500 ohms

(D) 2000 ohms

(B) 1000 ohms

Earthing Or Grounding - Study Mode