Nylon, a synthetic →adonefrom →b a combination of water, air and a by -product→c of coal was frist →dintroduced in 1938.

On Frist Looking into Chapman's Homer" is

A

lyric

B

an ode

C

a sonnet

D

an elegy

In coal washeries, three products namely the valuable product (i.e. clean/washed coal), discarded product (i.e. mineral matter) and an additional concentrated product called __________ is produced.

A

Concentrate

B

Tailing

C

Middling

D

None of these

Coal mines drainage waste water (acidic in nature) results from the earth's water percolating through the voids created in coal bed during mining. This polluted water which either drains out naturally to water courses or are removed before starting the mining is

A

Neutralised by alkali treatment

B

Left as such without any treatment

C

Diluted with fresh water to reduce its acidity

D

None of these

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

Scheme-1: C6H5N2Cl→CuCNC6H5CN→H2o/H+C6H5COOH→∆Product-I Scheme-2: C6H5NO2→Fe/HCLC6H5NH2→N2NO3+HCL, 273KC6H5N2Cl→H2O/H+Product-II Scheme-3: CH3COOH→NH3CH3CONH2→NaOBrProduct-III উল্লিখিত Scheme সমূহে Product-I, Product-II এবং Product-III হলো যথাক্রমেঃ

A

C6H5COONH4, C6H5Cl and CH3OH

B

C6H5CONH2, C6H5NH2 and CH3OH

C

C6H5CONH2, C6H5NH2 and CH3NH2

D

C6H5CONH2, C6H5OH and CH3OH

American female novelist pearl S. Buck got noble prize in 1938 for the book--

A

The Good Earth

B

House Divided

C

The patriot

D

De Cameron

The elected Government of Bihar resigned in February 1938 for which reason?

A

The participation of India in war

B

Satyagraha against the British at the call of Gandhi

C

High taxes being imposed by the British

D

For the release of political prisoners

E

None of the above

এইচ এম বেলের প্রশ্ন তালিকাটি কাদের জন্য ১৯৩৮ সালে সংস্কার করা হয়?

A

মানসিক রোগী

B

বৃদ্ধ

C

প্রাপ্তবয়স্ক

D

চিকিৎসক

Urwick ১৯৩৮ সালে সংগঠনের কয়টি নীতির কথা বলেছেন?

A

৫টি

B

৬টি

C

৭টি

D

কোনোটি নয়

A manufacturer sells three products i.e. A, B and C. Product A cost 200 and sells for 250, Product B costs 150 and sells for 180, Product C costs 100 and sells for 110. On which product, he has maximum percentage of profit?

A

B only

B

A and B both

C

A only

D

C only

Nylon, a synthetic →adonefrom →b a combination of water, air and a by -product→c of coal was frist →dintroduced in 1938.

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