Page:5
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.
D:-Straight
Correct Answer:- Option-C
Question22:-Used to remove a broken tap in a hole
A:-Screw driver
B:-Tap extractor
C:-Punch
D:-Scriber
Correct Answer:- Option-B
Question23:-Drill chucks are held on the machine spindle by means
A:-Chuck nut
B:-Dri
C:-Arbor
D:-Neck
Correct Answer:- Option-C
Question24:-Which is the formula to find out tap drill size?
A:-Drill size = Tap size — pitch
B:-Drill size = 3 x pitch
C:-Drill size = 2 x pitch
D:-Drill size = 2x Tap size
Correct Answer:- Option-A
Question25:-The point angle of general purpose drill is
A:-27°
B:-60°
c:-90°
D:-118°
Correct Answer:- Option-D
Question26:-The angle of BSW thread is
A:-55°
B:-60°
C:-29°
D:-45°
Correct Answer:- Option-A
Question27:-The lead of three start thread of 2 mm pitch is
A:-2 mm
B:-6 mm
C:-8 mm