Question:-
Match List-I (A function connected with NC m/c tool) with List-II (Associated parameter) and select the correct answer using the codes given below the lists:
List-I
A. Interpolation
B. Parity check
C. Preparatory function
D. Point to point control
List-II
1. Tape preparation
2. Canned cycle
3. Drilling
4. Contouring
5. Turning
Option (A)
A B C D
4 1 2 3

Option (B)
A B C D
4 1 2 5

Option(C)
A B C D
5 1 3 2

Option(D)
A B C D
1 4 3 2

Correct Option:
(A)
Question Solution:
(rpm of work(gear blank)/rpm of hob) = (N/2)(for double start hub)
Þ (RPM of work (gear blank) / RPM of hob) = (60/2)
Þ (RPM of hob/RPM of work (gear blank)) = (2/60)
Þ RPM of hob = (2/60) RPM and gear blank
Þ 1 revolution of hob = (2/60) revolution of gear blank
question-answer-faq-2968