Hardgrove grindability index of four coal samples are given below. Which of them is the easiest to grind?

Grindability of a material does not depend upon its

A

Elasticity

B

Hardness

C

Toughness

D

Size

Calorific value of coal middling generated in coal washeries during washing of coal may be around __________ Kcal/kg.

A

1000

B

4000

C

6000

D

8000

Translate into Bangla : He has no political axe to grind.

A

তাঁর কোনো জোরালো রাজনৈতিক আদর্শ নেই।

B

তিনি কোনো রাজনৈতিক দলের সমর্থক নন।

C

তিনি কোনো অপরাজনীতির সঙ্গে যুক্ত নন।

D

তাঁর রাজনৈতিক বক্তৃতা খুরধার নয়।

"To have an axe to grind” means

A

A selfish means to serve

B

To fail to arouse interest

C

To have no revolt

D

To work for both sides

Choose the past participle' form of the verb 'Grind' from the following words:

A

Grinden

B

Grinded

C

Grind

D

Ground

'To have an axe to grind' means-

A

A selfish means to serve

B

To fail to arouse interest

C

To have no result

D

To work for both sided

The phrase ‘have no axe to grind’ means-

A

to have no personal reasons

B

to have personal reasons

C

selfishness

D

vested interests

A fine grained grinding wheel is used to grind

A

Hard and brittle materials

B

Soft and ductile materials

C

Hard and ductile materials

D

Soft and brittle materials

A coarse grained grinding wheel is used to grind

A

Hard and brittle materials

B

Soft and ductile materials

C

Hard and ductile materials

D

Soft and brittle materials

A _________ grinding wheel is used to grind soft materials.

A

Course grained

B

Medium grained

C

Fine grained

D

None of these

Hardgrove grindability index of four coal samples are given below. Which of them is the easiest to grind?

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