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b) huge fair
c) a lot of smoke
d) no correct variant

17. What was the best oil to burn in lamps?
a) bear oil
b) seal oil
c) sperm-whale oil
d) no correct variant

18. What was brighter than candles in that time?
a) whale oil
b) oil lamps
c) candles were the best
d) no correct variant

19) When did the story of oilwell drilling begin?
a) in the mid-1900s
b) in the mid-1700s
c) in the mid-1800s
d) no correct variant

20.Find the meaning of the term “barrel”:
a) a unit of capacity used in the oil and other industries, normally equal to 42 US gallons or 35
Imperial gallons
b) a unit of volume in the U.S. Customary System, used in liquid measure, equal to 4 quarts
(3.785 liters)
c)a gas, liquid, or solid used to prevent contact of parts in relative motion, and thereby reduce
friction and wear
d) no correct variant

21.Find the meaning of the term “gallon”:
a) a unit of volume in the U.S. Customary System, used in liquid measure, equal to 4 quarts
(3.785 liters)
b) a gas, liquid, or solid used to prevent contact of parts in relative motion, and thereby reduce
friction and wear
c) a unit of capacity used in the oil and other industries, normally equal to 42 US gallons or 35
Imperial gallons
d) no correct variant

22.Find the meaning of the term “lamp oil”:
a) a yellowish oil obtained from whale blubber, formerly used in making soap and candles and as
a lubricating oil and a fuel for lamps
b) a flammable hydrocarbon oil used as fuel in lamps and heaters
c) a gas, liquid, or solid used to prevent contact of parts in relative motion, and thereby reduce
friction and wear
d) no correct variant

23. Find the meaning of the term “salt-water well”:
a) a simple crane having lifting tackle slung from a boom
b) a structure in which rock layers slope away in all directions from a central point
c) a well from which salt water flows after the petroleum contents are depleted.

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