Question
________ is NOT a part of a combination set.
This question was previously asked in
RRB ALP/Technician 2018 CBT 2 Electronics Mechanic Question Paper (23-Jan-2019) (Shift 1)
The correct answer is
Slip gauge
Combination Set Components Explained
A combination set is a versatile measuring and marking tool. It typically includes several heads that can be attached to a graduated rule.
Standard Combination Set Parts
- Square head: Used for setting and checking 90-degree and 45-degree angles.
- Centre head: Used with the square head and rule to find the center of round stock or shafts.
- Protractor head: Used to measure or set angles accurately.
Identifying the Outlier
The question asks which item is NOT a part of a standard combination set. Let's examine the options:
- Centre head: As noted above, this is a standard component used for finding centers.
- Protractor head: This is also a standard component for angle measurement.
- Square head: This is the primary head for marking right angles and 45-degree angles.
- Slip gauge: Slip gauges are precision blocks used as standards for length measurement and calibration. They are not typically included as part of a combination set, although they are crucial tools in metrology.
Conclusion
Based on the functions and typical composition of a combination set, the slip gauge is the item that does not belong.
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