176. In tramways which of the following motors is used?
A. D.C. shunt motor
B. D.C. series motor
C. A.C. three phase motor
D. A.C. single phase capacitor start motor

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177. In a steam locomotive electric power is provided through
A. overhead wire
B. battery system
C. small turbo-generator
D. diesel engine generator

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178. Which of the following drives is suitable for mines where explosive gas exists?
A. Steam engine
B. Diesel engine
C. Battery locomotive
D. Any of the above

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179. In case of locomotives the tractive power is provided by
A. single cylinder double acting steam engine
B. double cylinder, single acting steam engine
C. double cylinder, double acting steam engine
D. single stage steam turbine

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180. Overload capacity of diesel engines is usually restricted to
A. 2 percent
B. 10 percent
C. 20 percent
D. 40 percent

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181. In case of steam engine the steam pressure is
A. 1 to 4 kgf/cm2
B. 5 to 8 kgf/cm2
C. 10 to 15 kgf/cm2
D. 25 to 35 kgf/cm2

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182. The steam engine provided on steam locomotives is
A. single acting condensing type
B. single acting non-condensing type
C. double acting condensing type
D. double acting non-condensing type

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