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Show I MOTOR QUIZ X How Many Can You Answer? T Q. What is the cause of a storage battery overheating? Ans. Not enough water or too rapid a rate of charging. Q. Why should valves be ground? Ans. Much gasoline Is saved by grinding in valves as loss of compressions compres-sions means loss of power. Q. What is a common cause of hard starting even when the battery is in good condition? Ans. Old or wornout spark plugs, or plugs that are not properly gapped. Plug should be gapped at .018 to .022 inch ; and breaker points at .015 to .020 inch, in most cases. Q. What per cent of the consumption consump-tion of various commodities such as rubber, plate glass, leather, nickel, gasoline and finished rolled steel is used by the automotive industry? Ans. Rubber, 85 per cent, plate glass, 74 per cent, leather, 00 per cent, nickel, 2S per cent, gasoline, 80 per cent, and rolled steel, 18 per cent Q. What was the increase in car registration for the first quarter of 1929 against the same period In 192SJ Ans. 1,500,000. |