采矿工程专业英语(新)-作业一

一、判断(共计50分,每题2.5分)

1、The definition of unsupported methods precludes the use of roof bolts or light structural supports of timber or steel, for such support does alter the load-carrying capacity of the natural rock.

A. 正确
B. 错误

2、The two major variations of open cast mining are area mining and contour mining. Area mining is carried out on relatively flat terrain with flat-lying seams.

A. 正确
B. 错误

3、Placer mining is another subclass, employed for the recovery of soluble or fusible minerals or those that can be easily recovered in slurry form.

A. 正确
B. 错误

4、Openings driven for exploration purposes cannot be utilized to develop the deposit.

A. 正确
B. 错误

5、The VCR method was patented by a Canadian explosives firm that developed the crater testing method that ensures that the blasting procedure is adequate for the rock mass in the stope.

A. 正确
B. 错误

6、In many metal operations, the deposit will be mined from levels that are spaced at an appropriate distance.

A. 正确
B. 错误

7、Underground development openings can be ranked in three categories by order of importance in the overall layout of the mine.

A. 正确
B. 错误

8、Auger mining is a mining method that recovers coal or other minerals from under the highwall when the ultimate stripping ratio has been achieved in open cast mining operations.

A. 正确
B. 错误

9、Historically, continuous excavating machines have been in existence only for a few years, long after the invention of dynamite in 1867.

A. 正确
B. 错误

10、Most aqueous mining methods are comparatively expensive, with relative costs of more than 5%。

A. 正确
B. 错误

11、Sublevel stoping is a vertical mining method in which a large open stope is created within the vein.

A. 正确
B. 错误

12、Of the unsupported methods, room-and-pillar mining and stope-and-pillar mining employ horizontal openings, low opening-to-pillar ratios, and light-to-moderate support in all openings.

A. 正确
B. 错误

13、The construction of underground openings is specialized but not expensive.

A. 正确
B. 错误

14、The nature and extent of lunar mineral resources have been well known even after the Soviet and American exploratory landings.

A. 正确
B. 错误

15、Because of its simplicity and small scale, shrinkage stoping is now a very popular method of noncoal mining for veins of modest size.

A. 正确
B. 错误

16、Neither evolutionary nor revolutionary changes have been evident in the application of automation and robotics to mining.

A. 正确
B. 错误

17、Whether it increases or decreases, it is safe to assume that underground mining will continue to play an important role in supplying mineral resources in the future.

A. 正确
B. 错误

18、Only conventional mining practice is used for shaft sinking in an underground mine.

A. 正确
B. 错误

19、Shrinkage and sublevel stoping utilize vertical or steeply inclined openings (and gravity for the flow of bulk materials), high opening-to-pillar ratios, and light support mainly in the development openings.

A. 正确
B. 错误

20、TBMs were then used in the earliest attempts to tunnel under the English Channel, starting in 1865; most of them used drag-bit or disk cutters.

A. 正确
B. 错误

二、单选(共计50分,每题2.5分)

21、 _______ houses the sheaves for the hoist and the ropes to the conveyances.

A. Power supply
B. Headframe
C. Maintenance building
D. mineral processing plant

22、- Excuse me, can you tell me the way to the bus stop?- _________

A. Yes, go straight down this way to the end.
B. Why do you ask me the way?
C. Yes, I will.
D. No, I can't tell you that.

23、 The propagation velocity of _______wave along charge is called denotation velocity.

A. body
B. surface
C.  detonation
D. shear

24、- How's your mother doing?- _________

A. She is very kind.
B. She is very well.
C. She is not very old.
D. She is doing shopping now.

25、Specific methods may be _______ because of their adverse effects on subsequent operations (e.g., processing, smelting, environmental problems, etc.).

A.  included
B. concluded
C. excluded
D. deluded

26、 The geometry of the mineral deposit and the overburden and the planned production rate dictate the minimum amount of ________that must be done to maintain the desired rate of ore or coal extraction.

A. stripping
B. explosive
C.  support
D. equipment

27、Mathieson (1982) makes the point that the initial cash flow is very important, as the income generated during the first five or ten years of exploitation is more apt to _______ or break the mine than the economics of the long-term mine plan.

A. take
B. make
C.  carry
D. deck

28、- _______ - I'm suffering from a stomachache.

A. Are you feeling better?
B. Why are you here?
C. Are you pleased?
D. What's the matter with you?

29、Mine management must plan how the land is to be restored, how the____ and faunaare to be protected, and how the water and air are to be kept as clean as technology permits.

A. cora
B. pandora
C. flora
D. flora

30、- Do you like to play basketball?- _________

A. Perhaps.
B. No. Xiaowang does not like it.
C. I am crazy about it.
D. I am pleased about it.

31、Open pit mining is a ________ method in terms of production rate, responsible for more than 60% of all surface output.

A. Small-scale
B. large-scale
C. moderate-scale
D. micro-scale

32、The choice of targets may seem to be a function of the mineral potential. However, the political climate ________ a large part in the process of choosing areas in which prospecting and exploration will be performed.

A. arrays
B. plays
C. displays
D. obeys

33、Because many targets today are concealed, direct search techniques (physical examination, geologic study and mapping, and sampling) must be _________by indirect methods (geophysics, geochemistry, geobotany).

A. presented
B. represented
C. supplemented
D. prevented

34、In choosing a materials handling system, the pit _______ will play a major part in the type and size of the equipment that may be chosen.

A. limit
B. geometry
C. depth
D. slope

35、Most open pit mines are less than ___________ m in depth unless they are associated with a deposit of better than average grade, stripping ratio, or size

A. 50
B.  100
C. 200
D. 300

36、- How do I get to the cinema?- _________

A. It's very far.
B. Yes, there is a cinema near here.
C. It's well known.
D. Go down this street and turn left.

37、The new philosophy in the mining industry is sustainability, that is, the meeting of economic and ________ needs of the present while enhancing the ability of future generations to meet their own needs.

A. environmental
B. mental
C. continental
D. continental

38、A typical cycle of unit operations for metal and many nonmetal mines consists of the following: (1) drilling, (2) blasting, (3) loading, and (4) hauling. This cycle is performed over and over to accomplish the ¬¬¬¬¬¬¬¬¬_________of the ore.

A. beginning
B. winning
C. spinning
D. thinning

39、 Blind boring or raise boring of shafts in many soft-rock conditions is quite common for diameters of less than ___________.

A. 1.5m
B. 3.8m
C.  4.9m
D. 5.4m

40、Preserving surface_________ may require stream relocation or diversion.

A. game resources
B. wildlife
C. drainage
D. archaeological sites