Steels with high carbon equivalent have poor Weldability, because in these steels during welding__________?
Blasting of tri-nitro-toluene (TNT) is done by mixing it with ammonium__________?
Joule-Thomson co-efficient is the ratio of__________?
Which of the following material handling equipments is not suitable for moving materials in varying paths ?
Pick out the wrong statement ?
__________ property of a material is determined by the Herbert Pendulum device?
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__________?

Identify the false statement?

A. Martensitic steels are less susceptible to pitting corrosion than austenitic steels
B. Pitting corrosion is usually very localised
C. Hydrogen embrittlement is facilitated by tensile stress
D. Stress corrosion cracking is facilitated by tensile stress

Correct Answer: Martensitic steels are less susceptible to pitting corrosion than austenitic steels ✔

Last Updated: February 11, 2019