Sand used to stop the green sand from sticking to the pattern is termed as the ______________ sand?

Related Mcqs:

1. Uniform ramming of sand in green sand moulding process leads to____________________?

   A. Reduced chance of gas porosity
   B. Greater dimensional stability of the casting
   C. Uniform flow of molten metal into the mould cavity
   D. Less sand expansion type of casting defect

2. The taper provided on pattern for its easy & clean withdrawal from the mould is termed as the _______________ allowance ?

   A. Casting
   B. Pattern
   C. Draft
   D. Distortion

3. The transition temperature at which all the ferromagnetic materials become paramagnetic materials is termed as the ‘Curie temperature’. Its value for cobalt is ______________ °C?

   A. 768
   B. 1127
   C. 1359
   D. 1480

4. Cold working of a material results in increase in hardness, which is termed as the ______________ hardening ?

   A. Cold
   B. Work
   C. Age
   D. Induction

5. Shrinkage allowance on pattern is provided to compensate for shrinkage when the _____________________?

   A. Metal changes from liquid state to solid state at freezing temperature
   B. Solid phase temperature drops from freezing temperature to the room temperature
   C. Liquid metal temperature drops from pouring temperature to room temperature
   D. Liquid metal temperature drops from pouring temperature to freezing temperature

6. Parallel straight line pattern of temperature distribution for both hot and cold fluids is observed in case of heat exchanger of the type________________?

   A. Parallel flow with equal heat capacities
   B. Counter flow with equal heat capacities
   C. Counter flow with unequal heat capacities
   D. Parallel flow with unequal heat capacities

7. Materials having resistivity ranging from 1 to 100 ohm. cm is termed as___________________?

   A. Conductor
   B. Insulator
   C. Semi-conductor
   D. None of these

8. The temperature at which ferromagnetic material can no longer be magnetized by the outside forces, is termed as the____________________?

   A. Critical point
   B. Curie temperature
   C. Inversion temperature
   D. Eutectic temperature

9. The stress at which extension of the material takes place more rapidly as compared to the increase in load is termed as the _____________ point of the material?

   A. Elastic
   B. Ultimate
   C. Yielding
   D. Breaking

10. A form of stress corrosion failure termed as ‘season cracking’ is generally observed in __________________?

    A. Thermosetting polymers
    B. High carbon steels
    C. Brasses
    D. Borosilicate glasses