A key made from a cylindrical disc having segmental cross-section, is known as______________?

Related Mcqs:

1. 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

2. A tapered key which fits in a keyway in the hub and is flat on the shaft, is known as___________________?

   A. wood-ruff key
   B. feather key
   C. flat saddle key
   D. gib head key
   E. hollow saddle key

3. A key capable of tilting in a recess milled out in a shaft is known as______________________?

   A. wood-ruff key
   B. feather key
   C. flat saddle key
   D. gib head key
   E. hollow saddle key

4. 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

5. In cross or regular lay ropes_________________?

   A. direction of twist of wires in strands is opposite to the direction of twist of strands
   B. direction of twist of wires and strands are same
   C. wires in two adjacent strands are twisted in opposite direction
   D. wires are not twisted
   E. none of the above

6. 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

7. The maximum stress due to stress concentration in a bar having circular transverse hole, as compared to its static stress without hole will be_________________?

   A. same in both cases
   B. 2 times more
   C. 3 times more
   D. 4 times more
   E. unpredictable

8. When two springs are in series (having stiffness K), the equivalent stiffness will be________________?

   A. K
   B. K/2
   C. 2K
   D. KIA
   E. UK

9. The property of a material which enables it to resist fracture due to high impact loads is known as__________________?

   A. elasticity
   B. endurance
   C. strength
   D. toughness
   E. resilience

10. Stress concentration in static loading is more serious in__________________?

    A. ductile materials
    B. brittle materials
    C. equally serious in both cases
    D. depends on other factors
    E. unpredictable