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
Related Mcqs:
- 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 - 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 - 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 - 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 - Tensile strength of a mild steel specimen can be roughly predicted from following hardness test_________________?
A. Brinell
B. Rockwell
C. Vicker
D. Shore’s sceleroscope
E. none of the above - The ratio of endurance limit in shear to the endurance limit in flexure is__________________________?
A. 0.33
B. 0.4
C. 0.5
D. 0.55
E. 0.6 - A bolt___________________?
A. has a head on one end and a nut fitted to the other
B. has head at one end and other end fits into a tapped hole in the other part to be joined
C. has both the ends threaded
D. is provided with pointed threads
E. requires no nut - Taper usually provided on cotter is_________________?
A. 1 in 5
B. 1 in 10
C. 1 in 24
D. 1 in 40
E. 1 in 50 - In oilness bearings________________?
A. the oil film pressure is generated only by the rotation of the journal
B. the oil film is maintained by supplying oil under pressure
C. do not require external supply of lubricant
D. grease required to be applied after some intervals
E. none of the above - For tight leakage joints, following type of thread is best suited ____________________?
A. metric
B. buttress
C. square
D. acme
E. NPT (national pipe threads)
