Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area; in the casting)
V/A
V/A2
V2/A
V2/A2
- Which of the following is prone to cup and cone fracture?
- The units of the rate constant for a second order reaction are
- Spark plug is provided in a/an
- The most important function of a washer is to provide bearing area and washers are normally specified…
- Nickel and __________ are the alloying element added in steel to increase its toughness.
- While the thermosetting polymers are amorphous in nature, the thermoplastic polymers are either amorphous…
- The highest stress that a material can withstand for a specified length of time without excessive deformation…
- Which of the following is not a dielectric material?
- Plastics as a material of construction suffer from the drawback of low
- Steel balls are manufactured by
- The thermodynamic law, = constant, is not followed by the
- Faraday's law of electrolysis is related to the
- Desalination of water
- Consumable electrodes are used in the __________ welding.
- Cascade control is
- Wrought iron is not
- Which of the following is not an explosive?
- Which of the following is the correct nature of shear stress distribution along the cross section in…
- A solution which resists change in its pH value on addition of acid/alkali is called the __________…
- Optical activity is a/an __________ property.
- Which of the following materials does not form adherent oxide film on surface?
- Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition…
- Maximum amount of thermal radiation is emitted at all wavelengths at any specified temperature by a/an…
- Large diameter reinforced cement concrete (RCC) pipes are generally joined by __________ joint.
- In an amorphous material, atoms defy any definite atomic structure and exist in random pattern just…
- Which of the following metals is not subjected to electrolytic refining/purification?
- Main constituent of bone ash is
- The temperature at which the magnetic property of iron disappears (i.e., it becomes non-magnetic) and…
- Pick out the wrong conversion of absolute & kinematic viscosities.
- Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of Portland cement.…