Which of the following mechanical conveyors does not come under the division 'carriers'?

Which of the follwoing mechanical conveyors does not come under the division 'scrapers'?

A

Ribbon conveyor

B

Flight conveyor

C

Bucket elevators

D

Drag conveyor

Mechanical conveyors which push the material along an endless trough or tube are called scrappers. Which of the following conveying equipments comes under the category of 'scrappers'?

A

Bucket conveyor

B

Flight conveyor

C

Screw conveyor

D

Both B and C

Which of the following conveyors cannot be recommended for transportation of abrasive materials?

A

Belt conveyor

B

Apron conveyor

C

Flight conveyor

D

Chain conveyor

If a D.C. motor is to be selected for conveyors, which rioter would be preferred?

A

Series motor

B

Shunt motor

C

Differentially compound motor

D

Cumulative compound motor

If a D.C. motor is to be selected for conveyors, which motor would be preferred ?

A

Series motor

B

Shunt motor

C

Differentially compound motor

D

Cumulative compound motor

Apron conveyors are used for

A

Heavy loads & short runs

B

Small loads & long runs

C

Heavy loads & long runs

D

None of these

Screw conveyors are

A

run at very high rpm

B

suitable for sticky materials

C

suitable tor highly abrasive materials

D

all A, B and C

For material transportation, conveyors are used when the prevailing conditions include

A

Loads are uniform

B

Routes do not vary

C

Materials move relatively continuously

D

All of these

Which cell division of phase of cell division maintains the chromosomes number constant from generation to generation?

A

Mitosis

B

Meiosis

C

Prophase I

D

Zygotene

In animal cells, cell division starts with the division of

A

Centromeres

B

Centrioles

C

Centrosomes

D

Ribosomes

Which of the following mechanical conveyors does not come under the division 'carriers'?

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