A thinner mix of a gypsum bonded investment will_______________?

Related Mcqs:

1. Gypsum bonded investment should not be heated over______________?

   A. 700°C B. 1,300°C C. 1,063°C D. 900°C...

2. Quartz is added to gypsum bonded investment to______________?

   A. Increase the strength B. Counter balance contraction of gypsum during heating C. aid in hygroscopic expansion D. Increase the shelf life of investment...

3. The best pickling solution for gypsum bonded investment is_______________?

   A. Hydrochloric acid B. Nitric acid C. Sulphuric acid D. Phosphoric acid...

4. The product, which is obtained by calcining gypsum under steam pressure at 120-130°C or by dehydrating gypsum in the presence of sodium succinate is_______________?

   A. Alpha – hemihydrates B. Beta – hemihydrates C. Calcium sulphate dihydrate D. Orthorhombic anhydrate...

5. Binder in phosphate bonded investment is______________?

   A. Magnesium oxide & Phosphate B. Magnesium oxide & Phosphoric acid C. Magnesium oxide & Monoammonium phosphate D. Magnesium oxide & Ortho Phosphoric acid...

6. Binder used in Gypsum investment is_________________?

   A. Silica B. Quartz C. Cristobolite D. Calcium sulphate monohydrate...

7. The strength of a gypsum investment is dependent on_______________?

   A. Carbon content B. Silica content C. Gypsum D. Copper...

8. The most commonly used accelerator in gypsum product is___________________?

   A. Sodium fluoride B. Potassium fluoride C. Potassium sulfate D. Aluminium sulfate...

9. ADA specification number of gypsum products are described under____________?

   A. 1 B. 4 C. 12 D. 25...

10. As per DNA No. 25, minimum amount of setting expansion required for type V gypsum products_______________?

    A. 0.05 B. 0.10 C. 0.15 D. 0.20...