Kerala PSC Previous Years Question Paper & Answer
Page:13
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.
measuring surfaces
A:-Thimble
B:-Ratchet stop
C:-Barrel
D:-Anvil
Correct Answer:- Option-B
Question64:-Which micrometers are designed for the measurement of longer
internal lengths?
A:-Depth micrometer
B:-Tube micrometer
C:-Stick micrometer
D:-Digital micrometer
Correct Answer:- Option-C
Question65:-What is the cutting speed of dril for drilling aluminium?
A:-140-160 m/min
B:-130-150 m/min
C:-120-140 m/min
D:-70-100 m/min
Correct Answer:- Option-D
Question66:-What is the point angle of drill for drilling brass and bronze?
A:-118°-140°
B:-112°-140°
C:-90°-120°
D:-90°-110°
Correct Answer:- Option-A
Question67:-Which of the following statement is/are correct about the necessity of
boring a hole?
i. To obtain concentricity of the hole
ii. To obtain the rigidity of hole
11. To remove the error formed by drilling, and to facilitate the reaming operation
A:-Only (i and ii)
B:-Only (ii and iii)
C:-Only (i and iii)
D:-All of the above (i, ii and iii)
Correct Answer:- Option-C
Question68:-The operation of beveling the end of a drilled hole is called
A:-Counterboring