Download DBATU B.Tech 2019 Oct-Nov Mech 5th Sem Metrology And Quality Control Question Paper

Download DBATU (Dr. Babasaheb Ambedkar Technological University) B Tech 2019 Oct-Nov (Bachelor of Technology) Mech 5th Sem Metrology And Quality Control Question Paper

DR. BABASAHEB AMBEDKAR TECHNOLOGICAL UNIVERSITY, LONERE
Mid Semester Examination ? Sep. 2019
Course: B. Tech in Mechanical Engineering ' Sem: V '
Subject Name: Metrology & Quality Control Subject Code: BTMECSOS
Max Marks: 20 Date: 21/9/2019 Duration: 1 Hr.
Instructions to the Students:
1. Assume suitable data wherever required.
2. Draw ?gure wherever necessary.
3. F iggre to riLht indicates full marks.
, ##Am_._._.u..__._?
(Level/CO)
Marks
Solve all the Multiple Choice Questions
1X6=6
1. What characteristic of light makes it a standard?
a) It is easily sensed by the human eye. ?
b) Its colour can-be selected as per the user?s choice.
0) The length of?waves is known and unvarying.
d) It is easily refracted.
1/C01
2. The tooth pro?le of mating gears is kept uniformly thinned,
which results in a small play between mating tooth surfaces. This
i is called
a) backlash . c) lead correction
? b) pitch correction (1) none of these
17c02
3. An LVDT works on the principle of
a) mutual inductance ?, c) mutual capacitance
b) mutual resistance. d) magnetic induction
l/C02
4. The purpose of providing relief holes in sine bars is to
a) improve accuracy c) reduce weight b?
b) improve precision d) reduce Wear
l/C02
5. Least count of Micrometer is 4- ------
a. 0.01 b. 0.002 c. 0.001 d. 0.003
1/C02
6. Bright fringe pattern is observed under "7'" i . t
a. Constructive interference b. Destructive interference ct Both a & b.
1/C02
' Q2 .
Solve Any Two of the following.
3
3X2=6
(A)
Explain the use of sine center in measui'ement with neat sketch.
2/C02
(B)l
De?ne any three a) limit b) Teleranee c) MML d) LML
2/C02
(C)
? 2/C02
Q.3
De?ne least count of vemier caliper & explain its signi?cance}
Solve Any One of the following.
1X 8=8
(A)
List down various types of comparators. Explain working principle and construction of
any one type of mechanical comparators with neat sketch.
3/C02
(B)
Describe working of gear tooth vemier used in measurement of gear tooth thickness and
depth. List down various types of gear error.
3/C02
*** End ***