Constant current method
D-ickle charging method
Correct Answer:- Option-C
Question19:-Which one of the following is not a defect of Lead Acid Battery ?
‘shard sulphation
B:-buckling of plates

C=partial short

-polarization

Correct Answer

۷۰ 005۰۵
Question20::What is the main difference between Nickel-tron cell and Nickel-Cadmium cell ?
AsType of negative plates
B:-Type of positive plates
Construction
Dsype of separators
Correct Answer Option-A
Question21:-Choose the ‘Term’ that indicate the maximum value of potential difference between a point on the ground and a point.
AsStep potential
B:-Leakage potential
CTouch potential
Potential difference

Correct Answer:-Question Cancelled

Question22:-Where we use system earthing method in the following ?
‘ADomestic appliances
B:-Electric motors
C:Tube light
D-Generating station
Correct Answer:- Option-D
Question23:-Among the following, which one 15 not related to pipe earthing ?
AGI pipe
B:-Copper plate

(C:Wite mesh.

-Funnel
Correct Answer: Option-8

Question24:-What is the reason for pouring water in the earth pit at repeated intervals ?
Asfor lower earth resistance
B:-to remove the soil from earth electrode

C:-to maintain negative potential

-to improve corrosion of earth electrode
Correct Answer Option-A
Question25:-Select the standard (BIS - from the year 1991) specification of a pug socket connected in AC ?
۸-3 ۸
۵:240 2۸
۸
5:240 ۸
×۱۱ ۸۳8۷۶9۵۰۴۳۰ 000+8
Question26:-What type of insulating material is used for making the neutral link ?
‏ف الاجم‎
B:-Asbestos
ടിടി
D:-Celluloid
Correct Answer:- Option-C
Question27:-The latest version of switches in switch board among the following
‘A:Surface mounting switch
B:-Pul switch
CModular switch

“Flush switch,