A. determining brittleness
B. protecting metal against corrosion
C. protecting metal against wear and tear
D. experimental stress analysis
E. non-destructive testing of metals
Related Mcqs:
- Eye bolts are used for_________________?
A. foundation purposes
B. locking devices *
C. absorbing shock and vibrations
D. transmission of power
E. lifting and transportation of machines and cubicles - The edges of the plates for cylindrical vessels are usually bevelled to an angle of 80° for_________________?
A. reducing stress concentration
B. ease of manufacture
C. safety
D. fullering and caulking
E. all of the above - If an unsupported uniform cross sectional elastic bar is subjected to a longitudinal impact from a rigid bob moving with velocity v, then a compressive wave of intensity sc is propagated through the bar as follows______________________?
A. vpE
B. vVvF
C. WpE/2
D. IvHpE
E. none of the above, where E = modulus of elasticity and p = mass density - Stress concentration is caused due to_____________________?
A. variation in properties of material from point to point in a member
B. pitting at’points or areas at which loads on a member are applied
C. abrupt change of section
D. all of the above
E. none of the above - In nitrated parts, the origins of the fatigue cracks will occur at__________________?
A. surface
B. just below the surface
C. within the core
D. could occur anywhere
E. none of the above - For applications involving high stresses in one direction only the following type of thread would be best suited______________________?
A. ISO metric thread
B. acme thread
C. square thread
D. buttress thread
E. British Association thread - A key made from a cylindrical disc having segmental cross-section, is known as______________?
A. wood-ruff key
B. feather key
C. flat saddle key
D. gib head key
E. hollow saddle key - If two springs are in parallel then their overall stiffness will be_______________?
A. half
B. same
C. double
D. unpredictable
E. none of the above - If an application calls for stresses on screw threads in one direction only, then the following type of thread would be best suited ________________?
A. square
B. acme
C. buttress
D. BSW
E. metric - The piston rod of a steam engine is usually connected to the cross head by means of__________________?
A. bolted joint
B. kunckle joint
C. cotter joint
D. universal joint
E. universal coupling
