Paint spray gun works on the principle of

Protection of ship hulls against sea water corrosion is done by coating with zinc because of the fact that zinc compared to iron is

Which of the following pairs regarding the effect of alloying elements in steels are not matched correctly ?

Pick out the wrong statement.

Young's modulus of elasticity of a material is the slope of the initial linear portion of the stress-strain curve. It decreases ap-preciablyby

The increase in hardness of metal due to its cold working is termed as the __________ hardening.

The unit of g_c is

__________ is not a heat treatment process.

The term 'Value' in value engineering technique refers to the __________ cost of the product.

An atom bomb works on the principle of

__________ is not used as a material of construction in thermocouples.

Melting point & boiling points of liquid oxygen are respectively - 218.8°C & - 183°C, while the same for liquid nitrogen is - 210°C & - 195.8°C respectively. The difference in melting points of liquid oxygen & liquid nitrogen is not equal to 8.8

Eutectic reaction for iron-carbon system occurs at a temperature of __________ °C.

Coarse grained steels have

An ingot is hot forged to areduction in cross-section area. The percentage reduction in the volume for the above process is

Pick out the correct statement.

A material being tested for endurance strength is subjected to the __________ load.

Semi-conductors normally employ __________ bonding.

When water is sprayed on air, passing through an insulated chamber maintained at a temperature higher than the dew point of entering air but lower than its dry bulb temperature, then the air is

The entropy change for a spontaneous process is

Milligram of KOH required to saponify 1 gm of oil is called its __________ number.

Which of the following is an example of stress corrosion ?

Steel balls are manufactured by cold heading. After cold forming, they are subjected to

Flywheel is provided in a machine to

In cold working of metal as compared to its hot working

Volute casing of a centrifugal pump does not facilitate

Unit molar solution of __________ is the best conductor of electricity.

Heat transfer by radiation from a hot body will be most rapid, if its surface is __________ because of its higher emissivity.

Ageing of steel refers to the

Pick out the wrong statement.

High endurance limit of carburised machine parts is because of the fact that carburisation

The hardness of the lathe bed material is measured by the

Pick out the wrong statement about a fast breeder reactor.

F_eO (s) + CO (g) = Fe (s) + CO₂ (g), k =at 1173E; At equilibrium, what will be the number of moles of CO gas required to reduce one mole of F_eO atK?

Free oxygen is removed from boiler feed water, because it

Out of the following, the materials having maximum magnetic permeability is

Nickel is a __________ material.

Grey cast iron (used for making underground water pipes and manhole covers) as compared to steel has higher

__________ is the process used for setting up compressive stresses in the surface of a metal to improve its fatigue strength.

Desert air coolers being rendered ineffective in rainy season is due to

A coal with high __________ content will ignite most easily.

The routing function in a production system design is concerned with the

Reduction reaction involves the

The phenomenon of strain-ageing is generally experienced with

Gas carrying pipelines are best joined by

The maximum axial compression stress during cold upsetting of a cylinderical rod of radius (r) occurs at

When dry bulb temperature & wet bulb temperature of moist air is the same, it means that the

Old cycle handles are coated with nickel using

CANDU type nuclear reactor using natural uranium as fuel is the extensively used nuclear reactor because of the fact that the

In __________ process, there is an increase in entropy with no degradation of energy.