MINING MACHINERY QUIZ (3) (23- 32) 10 Questions....! | .
MINING ENGINEERING
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23.)
The vertical flexibility of armored chain conveyor is?
a) 3 to 4 deg
b) 2 to 3 deg
c) 1 to 2 deg
d) 4 to 5 deg
24.)
The loading capacity of gate end loaders is?
a) 1 to 1.5 tph
b) 2 to 4 tph
c) 5 to 7 tph
d) 7 to 9 tph
25.)
To slow down the tubs the device used is?
a) Runaway switch
b) Back stay
c) Hydraulic tub retarder
d) Sprags
26.)
Snub pulleys are placed near the drive head?
a) to increase the arc of contact
b) to increase tension on the belt
c) to accommodate more belt for extension
d) for safety
27.)
The haulage used upto 35 hp is called ?
a) Rope haulage
b) Endless haulage
c) Tugger haulage
d) Gravity haulage
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28.)
Where the series of belt conveyors are used for transport of coal there shall be?
a) remote control
b) sequence control
c) single point control
d) multi point control
29.)
The device used to hold the belt to run downward when the power is cutoff is?
a) Sequence control
b) back stay
c) remote control
d) holdback
30.)
Usually one motor drives a belt for a roadway of upto?
a) 100 m
b) 150 m
c) 200 m
d) 250 m
31.)
The speed of single chain conveyor is ?
a) 10 m/min
b) 35 m/min
c) 45 m/min
d) 60 m/min
32).
Limiting length of scraper chain conveyor is?
a) 100 m
b) 80 m
c) 60 m
d) 40 m
ANSWERS FOR ABOVE QUESTIONS
23) A
24) A
25) D
26) A
27) C
28) B
29) D
30) C
31) B
32) A
| Mining is like a search-and-destroy mission. |
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