Rajasthan Technical Education Second Year Paper 2016 Manufacturing Process
Which is fuel gas ?
(a) Methane
(b) Acetylene
(c) Carbon dioxide
(d) Carbon Monoxide
What is the rato of Oxygen and C2H2 in Natural Flame ?
(a) 1:1
(b) 1:2
(c) 2:1
(d) 3:1
What is standard colour for acetylene cylinder in gas welding ?
(a) Blue
(b) Black
(c) Red
(d) Yellow
What is standard colour for oxygen cylinder in gas welding ?
(a) Red
(b) Green
(c) Black
(d) Yellow
Why pressure regulator is needed at the welding torch ?
(a) To increase the pressure
(b) To reduce the pressure
(c) Control pressure as per desired
(d) None of the above
Which pieces are welded by resistance welding ?
(a) Sheet metal
(b) Wire
(c) (a) & (b) both
(d) None of above
Where spot welding is used ?
(a) Welding lap joint
(b) jointing metal pieces ranging from 0.001 to 0.5 inch thickness
(c) Metal pieces less than 1/4 inch thick (welding)
(d) All of the above
Seam welding is used for
(a) Made sufficiently close welding
(b) Leak proof seam welding
(c) (a) & (b) both
(d) None of above
How much temperature produced in the thermit welding ?
(a) 6500 degree Ferhanite
(b) 5000 degree Ferhanite
(c) 8500 degree Ferhanite
(d) 4000 degree Ferhanite
What is the material of welding torch tip ?
(a) H.S.S
(b) High thermal conductive material
(b) Alloy steel
(d) Carbide steel
What is name of upper portion of sand mould box?
(a) drag
(b) Cope
(c) Flask
(d) Lid
Factor which influence the design of a pattern is
(a) Kind of metal specified for the casting
(b) Number of castings wanted from the pattern
(c) The possibility of repeat order
(d) All of above
What is advantage of gated pattern ?
(a) Time is not consumed in cutting the gates
(b) Time is not consumed in cutting the runners
(c) A numbers of small patterns may be rapped and drawn from the mould at the same time
(d) All above
What is drying temperature for sand mould ?
(a) 200 degree Ferhanite over night
(b) 450 degree Ferhanite over nigh
(c) 150 degree Ferhanite one day
(d) 250 degree Ferhanite one day
Leave a Reply