Moisture contained by a substance in excess of the equilibrium moisture is called the _______________ moisture?

Related Mcqs:

1. Equilibrium moisture of a solid is equal to the total moisture minus free moisture. Which of the following substances will have maxi-mum equilibrium moisture ?

   A. Anthracite coal
   B. Rag paper
   C. Bamboo
   D. Inorganic solids

2. It takes 6 hours to dry a wet solid from 50% moisture content to the critical moisture content of 15%. How much longer it will take to dry the solid to 10% moisture content, under the same drying conditions? (The equilibrium moisture content of the solid is 5%) ?

   A. 15 min
   B. 51 min
   C. 71 min
   D. 94 min

3. Below is given an equilibrium moisture curve of a substance. State which regions represent free moisture and unbound moisture respectively ?

   A. II, III
   B. II, IV
   C. IV, III
   D. IV, II

4. Moisture content of a substance when at equilibrium with a given partial pressure of the vapour is called the _______________ moisture?

   A. Free
   B. Unbound
   C. Equilibrium
   D. Bound

5. Moisture in a substance exerting an equilibrium vapour pressure less than that of pure liquid at the same temperature is called the _______________ moisture?

   A. Bound
   B. Unbound
   C. Critical
   D. None of these

6. A solid is being dried in the linear drying rate regime from moisture content Xo to XF. The drying rate is zero at X = 0 and the critical moisture content is the same as the initial moisture Xo. The drying time for M = (Ls/ARc) is (where, L = total mass of dry solid, A = total surface area for drying Rc = Constant maximum drying rate per unit area X = moisture content (in mass of water/mass of dry solids)) ?

   A. M(Xo – XF)
   B. M(Xo/XF)
   C. M ln(Xo/XF)
   D. MXo ln(Xo/XF)

7. A solid is being dried in the linear drying rate regime from moisture content Xo to XF. The drying rate is zero at X = 0 and the critical moisture content is the same as the initial moisture Xo. The drying time for M = (Ls/ARc) is (where, L = total mass of dry solid, A = total surface area for drying Rc = Constant maximum drying rate per unit area X = moisture content (in mass of water/mass of dry solids))_____________?

   A. M(Xo – XF)
   B. M(Xo/XF)
   C. M ln(Xo/XF)
   D. MXo ln(Xo/XF)

8. Moisture in a solid exerting an equilibrium vapour pressure equal to that of the pure liquid at the same temperature is called the ___________________ moisture ?

   A. Unbound
   B. Critical
   C. Free
   D. Bound

9. The vapour pressure exerted by the moisture contained in a wet solid depends upon the____________________?

   A. Nature of the moisture
   B. Temperature
   C. Nature of the solid
   D. All A., B. and C.

10. All moisture in a non-hygroscopic material is the ________________ moisture?

    A. Free
    B. Equilibrium
    C. Unbound
    D. Bound