Kerala PSC Previous Years Question Paper & Answer
Page:4
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Junior Instructor (Turner) (NCA- LC/AI)' And exam conducted in the year 2023. And Question paper code was '159/2023/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was ''. 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.
B:-1:0.1
C:-1:4
D:-10:1
Correct Answer:- Option-A
Question17:-Determine the amount of Tailstock set over required to turn a taper
through 40 mm length from a rod of diameter 30 mm and 80 mm length keeping
big diameter 25 mm and small diameter 20 mm.
A:-10 mm
B:-05 mm
C:-12 mm
D:-06 mm
Correct Answer:- Option-B
Question18:-If the diameter of a work piece is increasing or decreasing uniformly,
then the ratio of the difference in diameter to its length is termed
A:-Taper
B:-Offset
C:-Eccentricity
D:-Conicity
Correct Answer:- Option-D
Question19:-Which one of the following statement should be kept in mind while
swiveling the compound rest for taper turning?
A:-Set the compound rest at full taper length
B:-Set the compound rest at full taper angle
C:-Set the compound rest at half taper length
D:-Set the compound rest at half taper angle
Correct Answer:- Option-D
Question20:-Find the angle of compound rest to be swiveled while turning a taper of
big diameter 60 mm and small diameter 20 mm for a length of 20 mm.
A:-30°
B:-45°
C:-60°
D:-90°
Correct Answer:- Option-B
Question21:-The end of twist drill bit shape is
A:-Flat
B:-Round
C:-Conical