Sparks Academy
SPARKS ACADEMY
Online Test Series
8190879379 Chennai

MCQ - Mechanical TNPSC JTO
JTO - 551 - Engineering Drawing and Draughtsman - 551 - unit - 06 - Screw Threads Bolts Nuts Washers

1)   

 What is the lead of a single-start screw thread?

A.
B.
C.
D.
Answer: A
2)   

Which of the following threads is used for power transmission in one direction only?

A.
B.
C.
D.
Answer: C
3)   

 The angle between the flanks of a British Standard Whitworth (BSW) thread is: 

A.
B.
C.
D.
Answer: B
4)   

 Unified threads are based on:

A.
B.
C.
D.
Answer: C
5)   

 Which thread form has a trapezoidal profile?

A.
B.
C.
D.
Answer: B
6)   

 In a right-hand thread, the nut advances when turned:

A.
B.
C.
D.
Answer: B
7)   

 A multiple-start thread is used for

A.
B.
C.
D.
Answer: C
8)   

 Which thread is preferred for low friction power transmission?

A.
B.
C.
D.
Answer: C
9)   

 BA threads are generally used in:

A.
B.
C.
D.
Answer: B
10)   

 The main difference between internal and external thread is:

A.
B.
C.
D.
Answer: C
11)   

 Which bolt is designed specifically for lifting loads?

A.
B.
C.
D.
Answer: B
12)   

 The cap screw is also called:

A.
B.
C.
D.
Answer: B
13)   

The square head bolt is generally used where:

A.
B.
C.
D.
Answer: A
14)   

 Which bolt is suitable for recessed or flush fitting?

A.
B.
C.
D.
Answer: B
15)   

 Hook bolts are used for:

A.
B.
C.
D.
Answer: C
16)   

 Which nut has a collar to prevent loosening?

A.
B.
C.
D.
Answer: B
17)   

  Which nut is enclosed to prevent thread damage?

A.
B.
C.
D.
Answer: C
18)   

  Which of these nuts is mostly used with a split pin for locking?

A.
B.
C.
D.
Answer: B
19)   

A nut with multiple holes on cylindrical sides for tightening is called:

A.
B.
C.
D.
Answer: B
20)   

 Which nut is suitable for frequent tightening/loosening using a spanner? 

A.
B.
C.
D.
Answer: D
21)   

 The main purpose of a washer is to:

A.
B.
C.
D.
Answer: B
22)   

 Which washer provides resistance against loosening due to vibration?

A.
B.
C.
D.
Answer: B
23)   

 A washer with an angled edge to fit inclined surfaces is: 

A.
B.
C.
D.
Answer: C
24)   

Which type of washer is used in high-speed rotating parts for locking?

A.
B.
C.
D.
Answer: C
25)   

 In bolted joints, washers are used mainly to:

A.
B.
C.
D.
Answer: C