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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name ' Junior Instructor (Draughtsman Mechanic)' And exam conducted in the year 2023. And Question paper code was '180/2023'. 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.
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Which of the following is the eccentricity for hyperbola?
(A) 1 (B) 12
(C) 2/3 (D) 3/2
A Curve generated by a point on the circumference of a circle which rolls without slipping
along a fixed straight line :
(^) Involute (B) Helix
(0) Cycloid (D) Ellipse
The front view of a point is 50 mm above the reference line and the top view is 20 mm below
the front view. The point lies in:
(^) First angle (B) Second angle
(C) Third angle (D) Fourth angle
When a line is perpendicular to HP and parallel to VP then what figure will be projected on
HP?
(^) Point (B) Inclined line
(C) Square (D) Straight line
State the position of a point the front view of which lies on the reference line and the top view
is 40 mm above it :
(A) 40 mm above H.P and in the V.P (B) 40 mm below H.P and in the V.P
(C) 40 mm behind V.P and in the H.P (D) 40 mm infront of V-P and in the H.P
If an isometric drawing is made use of isometric scale then the drawings are called :
(A) Isometric projection (B) Isometric view
(C) Isometric perception (D) Orthographic view
Which method of development is employed in case of sphere?
(^) Parallel-line development (B)_ Radial-line development
(C) Triangulation development (D) Approximation method
What is the largest diameter of the screw thread?
(A) Core diameter (B) Pitch diameter
(C) Nominal diameter (D) Helical diameter
The thread angle of British Standard Witworth (BSW) threads are :
(^) 45° (B) 55
(©) 30° ൬) 60°
180/2023 4 A