A. Hardness
B. Tensile
C. Toughness
D. Compressive
Correct Answer: Hardness ✔
Last Updated: February 11, 2019
Related MCQs
- The activity co-efficient of the solute in a dilute solution ?
- Insulation of liquid surface can be achieved by __________ on top of its surface?
- At absolute zero temperature, for any reaction involving condensed phases ?
- If a solid is compressed adiabatically in its elastic range, its __________ remains constant ?
- Natural water contains approximately __________ percent of heavy water?
- Exposure to __________ accelerates the degradation of plastics?
- The laminar boundary layer thickness in zero pressure gradient flow over a flat plate along the x-direction varies as x0.5 while the thickness of turbulent boundary layer varies as (where, x = distance from the leading edge) ?
- Production of one ton of paper in Indian paper industry consumes about __________ kWh of electricity ?
- A furnace is made of a refractory brick wall of thickness 0.5 metre and thermal conductivity 0.7 W/m.°K For the same temperature drop and heat loss, this refractory wall can be replaced by a layer of diatomaceous earth of thermal conductivity 0.14 W/m.K and thickness __________ metre?
- For grinding of softer materials, the grinding wheel should have __________ grain size ?
- Consider an ideal solution of components A and B. The entropy of mixing per mole of an alloy containing 50% B is__________?
- In case of compression of one kg of air, the work done will be the least, when the value of polytropic index ‘n’ is__________?
- The pressure drop per unit length for laminar flow of fluid through a long pipe is proportional to (where, A = cross-sectional area of the pipe & D = Diameter of the pipe) ?
- Corrosion rate cannot be lowered by reducing the __________ of the corroding medium?
- The life of a ball bearing is inversely proportional to__________?
- The condition of diffraction from a crystal is given by__________?
- The passage between the nozzle and the __________ is called ‘sprue’ in case of injection moulding?
- Yield strength of a polycrystalline metal with an average grain size „d’, is proportional to __________?
- The behaviour of a metal specimen, which when plastically strained in tension reduces its yield stress in compression and vice versa; is termed as the__________?
- Which of the following properties of a solid is not dependent on crystal imperfection ?
- While the recrystallisation temperature for pure metals is 0.3 Tm, the same for alloys is equal to __________ × Tm (where, Tm Melting temperature) ?
- Electrostatic separation of minerals from each other is based on their differences in the following property ?
- Age hardening is connected with__________?
- A compact estimate about the amount of materials handling between various work stations is obtained from the__________?
- Methyl orange indicator turns__________?
- Sand used to stop the green sand from sticking to the pattern is termed as the __________ sand?
- For efficient performance of a blast furnace, the extent of reduction of Wustite (FeO) should be__________?
- Tip of the match stick contains a mixture of__________?
- Internal energy of a gas obeying Van-Der-Waals equation of state, [p + (a/v2)] (V – b) = RT, depends upon its__________?
- 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) ?
- The swift cup test evaluates the following property of a sheet metal ?
- LVDT used for displacement measurement is a/an __________ Transducer?
- Cold chisel‟s hammers are made of__________?
- Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area; in the casting) ?
- Cassiterite is an ore of__________?
- Two solutions A1 & A2 have pH value of 2 & 6 respectively. It implies that the solution ?
- __________ is the hardest material out of the following ?
- __________ is the most important element, which controls the physical properties of steel ?
- The taper provided on pattern for its easy & clean withdrawal from the mould is termed as the __________ allowance ?
- A thin, flat & square plate measuring 2 m × 2 m is freely hanging in ambient air at 25°C. It is exposed to the solar radiation falling on one side of the plate at the rate of 500 W/m2. The plate temperature will remain constant at 30°C, if the convective heat transfer co-efficient is __________ W/m2 °C ?
- In the X-ray radiography technique, the tube voltage for thicker plates as compared to thin plates, should be__________?
- What is the critical radius of insulation (cms) for a metallic cylinder, if the convective heat transfer co-efficient with the ambient atmosphere is 5 W/m2. °K? Thermal conductivity of metal and insulation material are 40 and 0.1 W/m.°K respectively ?
- For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm3) while the C.V. is same on weight basis (i.e., kcal/kg) ?
- The critical pressure at which the latent heat of vaporization of steam becomes zero is __________ Kg/cm2 ?
- The diffusion co-efficient of Ni in Cu at 1000 K is 1.93 × 10-16 m2S-1 and it is 1.94 × 10-14 m2S- 1 at 1200 K. The activation energy (in k. J.mole-1) for the diffusion of Ni in Cu is__________?
- In a forced draft cooling tower, water is cooled from 95 to 80°F by exposure to air with a wet bulb temperature of 70°F. In this case, the__________?
- Lead is poured into the joint between two __________ pipes?
- The emf of a Deniell cell “Zn | Zn2+ || Cu2+ | Cu” can be increased by__________?
- Which of the following materials does not form adherent oxide film on surface ?
- In a totally irreversible isothermal expansion process for an ideal gas, ΔE = 0, ΔH = 0. Then ΔQ and ΔS will be__________?
- The most suitable material for die casting is __________?