Bihar SBTE Diploma Chemical Previous Year Question Paper

Bihar SBTE Diploma Chemical 6th SEM May 2019 Paper on MIO

Sr. No. Questions with options
1 The unit of diffusivity is –

(a)  Square meter/ sec

(b) Meter/sec

(c)  Cubic meter/sec

(d) None of these

2 Distillation utilizes the difference in ______of different component to effect separation

(a)  Steam pressure

(b) Vapor pressure

(c)  Gauge pressure

(d) None of these

3 Separation of distillation is NOT possible when relative volatility is equal to _______

(a)  1

(b) <1

(c)  >1

(d) None of these

4 The following method is used to design calculation for multi component  distillation

(a)  Me cabe – Thiele method

(b) Ponchon  Savrit Method

(c)  Tray to tray calculation

(d) Enthalpy concentration

5 Plate efficiency may be the type of _____

(a)  Overall efficiency

(b) Murphree efficiency

(c)  Local efficiency

(d) All of the above

6 Milk is dried usually in a ______dryer.

(a)  Freez

(b) Spray

(c)  Tray

(d) Rotary

7 Alcohol is dehydrated using ______ distillation

(a)  Extractive

(b) Azotropic

(c)  Stream

(d) None of these

8 The value of q for cold feed will be

(a)  =1

(b) >1

(c)  <1

(d) None of these

9 Slope of q line is

(a)  (q-1)/q

(b) q/(q-1)

(c)  1/q(q-1)

(d) None of these

10 CO2 can be absorbed by –

(a)  Hot cupric oxide

(b) Heated charcoal

(c)  Cold Ca(OH)2

(d) Alumina

11 The most economical range of abstraction factor is

(a)  0 to 0.5

(b) 0 to 3

(c)  1.25 to 2

(d) 5 to 15

12 Molarity is defined as the number of gram moles of solute per ____ of solution

(a)  Litre

(b) gm

(c)  Kg

(d) Cc

13 Desulphurization of petrol is done in a

(a)  Bolman extractor

(b) Rotating disc extractor

(c)  Packed extraction column

(d) Plate type extraction column

14 The unit of molal humidity is

(a)  (Kmol of the vapor)/ K mol dry air

(b) (gm of H2O)/ gm of air

(c)  (Kg)/Litre

(d) All of the above

15 What is relationship between Hp and Hr in case of saturation

(a)  Hp=Hr

(b) Hp>Hr

(c)  Hp<Hr

(d) None of these

16 An Azeotropic mixture is ______ mixture

(a)  Binary

(b) Ternary

(c)  Constant boiling point

(d) None of these

17 Distribution coefficient (K) is defined as

(a)  K = CE/CR

(b) K = CR/CE

(c)  K=CE -1/CR

(d) None of these

18 A graphical relationship between the solubility of a solute and temperature is termed as –

(a)  Cox chart

(b) Solubility chart

(c)  The Mier’s curve

(d) None of these

19 Height of distillation column is minimum at ______reflux

(a)  Total

(b) Minimum

(c)  Two times of minimum

(d) None of these

Data Collected By – Rashmi
Published On – 14th June 2022

 


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