MINING MACHINERY QUIZ (4) (33- 43) 10 Questions....! | .
MINING ENGINEERING
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33)
The angle of fleet should not exceed?
a) 1 deg
b) 1.5 deg
c) 3 deg
d) 5 deg
34)
The pay load carried by skip is?
a) 6 te
b) 8 te
c) 10 te
d) 12 te
35)
The ratio of pay load to gross load for skip winding is.......and for cage winding is...?
a) 0.6 ; 0.35
b) 0.35 ; 0.6
c) 0.8 ; 0.6
d) 0.6 ; 0.8,
36)
The groove of the head gear pulley should be ...........of the circumference of the rope is in contact with the groove?
a) 1/4
b) 1/2
c) 1/3
d) 3/4
37)
The number of spokes in head gear pulley are?
a) 15
b) 19
c) 21
d) 25
38)
The cage chains should be annealed at least once in?
a) 3 months
b) 6 months
c) 9 months
d) 12 months
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39)
The components of cage arrangements chains; links; shackles; are exempted from periodical heat treatment if they are made of?
a) wrought iron
b) Mild steel
c) 0.5 % carbon steel
d) 1.5 % Manganese steel
40)
The most important role plays in a safety that a component detaching hook is?
a) Jaws
b) Center pivot
c) Copper pin
d) D link pin
41)
All the suspension gear should be renewed after every ............?
a) 5 years
b) 7 years
c) 10 years
d) 15 years
42)
The levels in safety catches spaced at intervals varying from?
a) 0.1 to 0.3 m
b) 0.3 to 1 m
c) 1 to 1.3 m
d) 1.3 to 2 m
43)
Retractable supports for cages used while loading and unloading being carried at the top of the shaft are?
a) Safety catches
b) bell plates
c) keeps
d) platform
ANSWERS FOR ABOVE QUESTIONS
33) B
34) B
35) A
36) C
37) C
38) B
39) D
40) C
41) C
42) B
43) C
| Mining is like a search-and-destroy mission. |
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MINING ENGINEERING
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