Kerala PSC Previous Years Question Paper & Answer
Page:8
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Junior Instructor (Welder) - Industrial Training ' And exam conducted in the year 2021. And Question paper code was '070/2021'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
070/21
39. In wire speed controls, the recommended range of wire speed is
A) 1 - 25 m/min B) 1-30 m/min
C) 1-35 m/min 0) 1-40 m/min
40. Which kind of process is more economical and less edge preparation ?
A) GMAW B) SMAW
௦ GTAW D) SAW
41. In GMAW process, volts ampere curve and constant current type ampere drop
percentage is
A) 10% B) 8.0% C) 6.7% D) 12.5%
42. Atwhat percentage of oxygen can cause dizziness, unconsciousness or even death ?
A) 21% B) 23%
C) Less than 18% D) More than 21%
43. Mig welding of galvanized metal is extremely dangerous because it evaporate
A) Tin oxide B) Zinc oxide
C) Lead oxide D) Carbon monoxide
44. Ina nick break test, a saw cut depth is
A) 2-2.5mm 8) 1.5-2ന്ന
©) 1-14ന്ന 0) 2.5-3ന്ന
45. Which one of the test is used to defect surface and sub-surface ?
A) Visual inspection B) Radiographic test
C) Liquid penetrant test D) Magnetic particle test
46. Which one is to check the contour of welds ?
A) Scale B) Template
C) Slip gauge D) Vernier calipers