Session 3: Automotive Studs
Unit 2: Fasteners
Textual Question-Answers
Check Your Progress
A. Fill in the blanks
1. Studs are mechanical …………….. which are …………….onone or both ends.
Ans: fasteners, threaded
2. Automotive studs are …………. at both ends.
Ans: threaded
3. Wheel studs are the threaded fasteners that hold on the ……………of automobiles.
Ans: wheels
4. Press-in studs are installed from the back side of the……………….or……………
Ans: hub, flange
5. For a performance or …………..application, the use of ………….is preferred whenever possible instead of main cap bolts.
Ans: racing, studs
B. Multiple choice questions
1. Fasteners which are threaded on one or both ends are knownas……………..
(a) studs
(b) welding
(c) casting
(d) rivets
Ans: (a) studs
2. On the basis of their usage, automotive studs can be categorisedas…………….
(a) engine studs
(b) wheel studs
(c) stainless steel studs
(d) All of the above
Ans: (d) All of the above
3. Wheel studs are used in automobilesfor…………………,…………….
(a) holding the wheels
(b) holding the chassis
(c) holding the frame
(d) All of the above
Ans: (a) holding the wheels
4. Main studs can replace………………(a) main cap bolts
(b) screw-in
(c) press-in
(d) All of the above
Ans: (a) main cap bolts
5. Which wheel stud can be replaced if broken?
(a) Screw-in and press-in
(b) Engine studs
(c) Stainless steel
(d) All of the above
Ans: (a) Screw-in and press-in
C. Answer the following questions
1. What are the advantages of studs over bolts?
Ans: Studs provide better alignment of components, reduce thread wearin the base material, and offer stronger and more uniform clamping force.
They are easier to assemble and disassemble, especially in high-loadapplications.
2. In what conditions should studs be used in place of bolts?
Ans: Studs should be used in place of bolts in high-stress, hightemperature, or performance applications where frequent assembly anddisassembly are required, such as engine main caps and cylinder heads.
3. Differentiate between bolt and stud.
Ans: A bolt has a head on one end and is threaded on the other end, whereasa stud is threaded on one or both ends and does not have a head. Bolts are usedwith nuts, while studs are fixed into a component and secured with a nut.
4. Name the different types of studs.
Ans: The different types of studs are engine studs, wheel studs, screw-instuds, press-in studs, and stainless steel studs.
