A. Strongly
B. Only slightly
C. With eddy currents only
D. In a direction opposite to that of the applied field
Related Mcqs:
- Visco-elastic behaviour of materials which is time dependent is common in______________?
A. Plastics
B. Crystalline solid
C. Non-crystalline solids
D. Non-crystalline organic polymer - Ceramic materials fabrication cannot be done by__________________?
A. Welding
B. Slip casting
C. Extrusion
D. Plastic pressing - Hardest materials so far found is_________________?
A. Diamond
B. Graphite
C. Carborundum
D. Pumice stone - The malleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the maximum malleability ?
A. Lead
B. Copper
C. Aluminium
D. Wrought iron - Cermets are ______________ materials?
A. Refractory
B. Reinforced
C. Abrasive
D. Fully metallic - ____________ alloys have the highest specific strength of all the structural materials out of the following?
A. Magnetic steel
B. Titanium
C. Chromium
D. Magnesium - The behaviour of visco-elastic material is time dependent. This behaviour is common in _____________ materials?
A. Non-crystalline solid
B. Crystalline
C. Rubbery
D. Non-crystalline organic polymeric - All materials obey Hooke’s law within elastic limit. When elastic limit is reached, the tensile strain__________________?
A. Increases very quickly
B. Decreases very quickly
C. Increases in proportion to stress
D. Decreases in proportion to stress - An elastic behaviour of materials is expressed in terms of_______________?
A. Hysteresis loop area
B. Stress-strain curve
C. Relaxation time
D. None of these - Which of the following materials may prove unsuitable for handling acetic acid (glacial & anhydrous) at 40°C ?
A. Silicone rubber, teflon, porcelain and wood
B. Nickel, monel, stainless steel and graphite
C. Aluminium, copper, high silicon iron
D. Brass, cast iron, mild steel and tin
