For the preliminary breaking of hard rock, we use a (A) Gyratory crusher(B) Ball mill(C) Tube mill(D) Squirrel-cage disintegrator

For the preliminary breaking of hard rock, we use a
(A) Gyratory crusher
(B) Ball mill
(C) Tube mill
(D) Squirrel-cage disintegrator
by

1 Answer

Answer :

(A) Gyratory crusher
by

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Last Answer : Answer: A

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Last Answer : Answer: D

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Last Answer : Answer: C

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Last Answer : Answer: A

In the illustrated device, the part labeled '1A' _________. EL-0001 A. are start and run windings for a single phase shaded pole induction motor B. is the stator for a polyphase induction motor C. is the armature for a squirrel cage rotor motor D. are direct current shunt field windings for a universal motor

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Last Answer : Answer: B

In the illustration, the assembly labeled 2 is a ________. EL-0001 A. wound rotor and shaft for a single phase induction motor B. conduction rotor and shaft for a polyphase induction motor C. squirrel cage rotor and shaft for a polyphase motor D. squirrel cage rotor for a single phase induction motor

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Last Answer : Answer: C

The speed of a multi-speed, squirrel-cage, induction motor operating in a fixed frequency system can be changed by _____________. A. reconnecting stator windings for different numbers of poles B. changing the RPM of the rotor flux C. changing the phase sequence of the applied voltage D. reconnecting the stator so that no poles have the same polarity

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Last Answer : Answer: A

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Last Answer : Answer: D