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 ?
__________ 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__________?
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__________?

Pick out the wrong statement ?

A. Molecules with symmetrical arrangements (e.g. CH4 or CCl4) are non-polar
B. Generally, non-polar compounds are chemically inactive, conduct electricity poorly and do
not ionise
C. Most of the hydrocarbons are non-polar
D. None of these

Correct Answer: None of these ✔

Last Updated: February 11, 2019