VIP ELEMENTS 5 Flashcards
(16 cards)
For thin-walled pressure vessels, which of the
following statements is correct of the stresses?
A. Radial stresses is quite small as compared with
the tangential stress
B. Radial stresses is quite bigger as compared with
the tangential stress
C. Radial stresses is same as tangential stress
D. Only radial stress is present and no tangential
stress
A
A four-bar mechanism in which one of the links can
perform a full rotation relative to the other three
links
Grashoffs’ mechanism
Which of the following terms is used to describe
punch-pressed operations like forming, blanking,
shallow drawing and coining?
Stamping
A zinc coating applied to low carbon steel to
improve corrosion resistance. The coating can be
applied in a hot dip bath, by electroplating or by
dry tumbling (sheradizing)
Galvanizing
What type of brass that is usually to form tubing
or piping to carry hot water in such application of radiators or condenser
Red Brass
Produced through powder metallurgy from nonferrous
metals
Sintered Carbides
Brass with 40% zinc is called ____
Muntz metal
It resists pitting, stress corrosion, cracking, and
reducing atmospheres as hot at 1,900°F. It also
resists formation of grain-boundary precipitates
in heat-affected weld zones, so it is suitable for
most chemical-process applications in the as
welded condition.
A. Duranickel 301
C. Hastelloy X
B. Hastelloy B2
D. Hastelloy C-276
D. Hastelloy C-276
The planes of a crystalline lattice can be
specified by
miller indices
It is a supersaturated solid solution of carbon in
ferrite and it is the hardest and strongest form
of steel?
Martensite
A file is a piece of high-carbon crucible steel
having teeth cut upon its body by parallel rows.
The parts of the file are tang, heel and ______
Face
Split pulleys have their maximum speed limited to
____ of solid pulleys.
55%-60%
Grout material use under the machine bed and
foundation surface should be:
A. 1 part cement and 1/2 parts screened sand and
1/4-part gypsum
B. 1 part cement and 1 part screened sand
C. 1 part cement and 1 part screened sand and 1/4
part gypsum
D. 1 part cement and 1 1/2 part screened sand and
1/2-part stone
B
A treatment at the surface of an iron-base alloy,
usually in the form of sheet or strip, on which by
the action of air or steam at a suitable
temperature.
bluing
Which of the following is NOT a cause of accidents
of boring in a lathe machine?
A. if the work is not securely clamped
B. the proper clearances are not maintained
C. when adjusting the machine without bothering to
stop it
D. clearing away chips with the hands while the
drill is not in motion
D
The gap clearance for new piston rings for steam
pumps should be approximately:
A. 0.050’’ for each in diameter of cylinder
B. 0.010’’ for each in diameter of cylinder
C. 0.001’’ for each in diameter of cylinder
D. 0.003’’ for each in diameter of cylinder
D
