Pitch and tone of electric horn is adjusted by
A. Air gap
B. Contact gap
C. Air gap and contact gap respectively
D. Contact gap and air gap respectively
Answer: Option D
A. Air gap
B. Contact gap
C. Air gap and contact gap respectively
D. Contact gap and air gap respectively
Answer: Option D
The negative plates of a lead acid battery has
A. Lead peroxide
B. Spongy lead
C. Lead sulphate
D. Sulphuric acid
The capacity of a battery is expressed in terms of:
A. Current rating
B. Voltage rating
C. Ampere-hour rating
D. None of the above
For head lamp circuit fed from terminal on terminal switch we use
A. Yellow
B. Brown
C. Blue
D. None of these
To develop high voltage for spark plug of petrol engine
A. Distributor is installed
B. Carburettor is installed
C. Battery is installed
D. Ignition coil is installed
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