The two elements required to form substitutional solid solution should not have___________________?
(A) Same crystalline structure
(B) Same valency
(C) Widely differing electronegativity
(D) Same atomic sizes
The temperature at which ferromagnetic material can no longer be magnetized by the outside forces, is termed as the____________________?
(A) Critical point
(B) Curie temperature
(C) Inversion temperature
(D) Eutectic temperature
Wohler test is a destructive test to find out the ___________________ strength of a prepared metal specimen ?
(A) Creep
(B) Fatigue
(C) Endurance
(D) Tensile
Primary designation of steel is based on its__________________?
(A) Hardness & tensile strength
(B) Carbon content
(C) Iron content
(D) Alloying elements content
Powder metallurgy is used to produce__________________?
(A) High precision components with complex cavities and sharp features
(B) Components of large size
(C) Porosity free components
(D) Components of such alloys whose constituents do not form alloys readily
The most important function of a washer is to provide bearing area and washers are normally specified by their hole diameters. The diameter of washer as compared to the nut is__________________?
(A) More
(B) Less
(C) Same
(D) More but less than the diameter of bolt
Moist climate is the most favourable factor in the site selection far a_________________?
(A) Steel plant
(B) Textile factory
(C) Petroleum refinery
(D) Coke oven battery
Cold cracking in the heat affected zone of a high strength steel weld can take place because of the___________________?
(A) Retained austenite
(B) Martensite formation
(C) Relatively high sulphur content in the base metal
(D) Sufficient hydrogen present in the welding arc
Which of the following forces does not act on a fluid at rest ?
(A) Viscous force
(B) Gravity force
(C) Hydrostatic force
(D) Surface tension force
Gantt charts are used for streamlining the__________________?
(A) Inventory control
(B) Production schedule
(C) Sales forecasting
(D) Quality control