The concentration of (H+) ions is 4 x 10-5 in a solution. Then pH of the solution will be (Given log 4 = 0.6)
4.4
5.6
8.4
2.4
- Brass parts with high residual tensile stress at the surface are susceptible to season cracking (i.e.…
- The property of material, by which a given amount of energy is absorbed by it without plastic deformation,…
- The escape velocity of a body on earth which is independent of its mass is about __________ km/second.
- Drills are usually made of
- Adhesives
- Which of the following has the highest modulus of elasticity (about 7 × 106 kg/cm2)?
- Catalyst used in the catalytic converter employed in automobiles to convert CO into CO2 and for complete…
- Nickel and __________ are the alloying element added in steel to increase its toughness.
- During sensible heating of humid air
- Which of the following pairs is not correctly matched?
- Steam condenser tubes are made of admiralty brass, in which percentage of zinc & copper are __________…
- A furnace is made of a refractory brick wall of thickness 0.5 metre and thermal conductivity 0.7 W/m.°K…
- Hydro-cyclone is a
- At the point of boundary layer separation in fluid flow, the
- Addition of silicon to cast iron
- In Newton's law of viscosity, which states that the shear stress is proportional to the __________ Co-efficient…
- Laser welding is widely employed in the __________ industries.
- Lead is poured into the joints between two __________ pipes.
- Breakeven point represents the condition, when the company runs under no profit no loss condition. In…
- Pick out the correct statement.
- Circular cross section machine parts which are symmetrical about the axis of rotation are made by hot
- Minimum safe distance between two liquid fuel storage tanks is equal to (where, H = height of the tank)
- Super conduction in metals is observed at a temperature of __________ °K.
- On decreasing the grain size of a polycrystalline material, the property most likely to deteriorate…
- Water-tube boiler is the one, in which
- Pressure exerted by a liquid depends upon its
- __________ metal is used as a bearing liner material.
- Atomic __________ is a whole number for an element.
- With increase in __________ Knocking tendency in a spark ignition petrol engine decreases.
- Which of the following is the most wear resistant grade of carbide used for the cutting tools?