Practice Test: Question Set - 02
1. Buttress threads are most commonly used for:
- (A) Transmission
of motion
- (B) Resisting
force exerted in one direction only
- (C) Positioning
of mechanical parts
- (D) Special
bolts and nuts in structural work
2. What type of threads are suitable for small precision components and measuring gauges?
- (A) British
Association threads
- (B) Whitworth
Screw threads
- (C) Acme threads
- (D) Square
threads
3. In a single-start thread:
- (A) Lead and
pitch are equal
- (B) Lead is
double the pitch
- (C) Pitch is
double the lead
- (D) Lead is half
the pitch
4. Which one of the following thread forms is used in a threaded assembly where the sliding force acts in one direction only?
- (A) Square
thread
- (B) 'V' thread
- (C) Saw-tooth thread
- (D) Knuckle
thread
5. Which one of the following thread forms on bolts and nuts is meant for general fastening purposes?
- (A) 'V' threads
- (B) Square
threads
- (C) Knuckle
threads
- (D) Acme threads
6. The handle of thread plug gauge is made from ebonite material for:
- (A) Reducing the
cost
- (B) Reducing the
weight
- (C) Easy
manufacturing
- (D) Easy
handling
7. The pitch of a 3-start is the lead divided by:
- (A) 1
- (B) 2
- (C) 3
- (D) 4
8. The pitch diameter of the external screw thread is checked by:
- (A) Screw pitch
gauge
- (B) Thread ring
gauge
- (C) Screw thread
micrometer
- (D) Vernier
caliper
9. Which one of the following threads is used on mechanical jack?
- (A) Acme
- (B) Square
- (C) Buttress
- (D) B.S.F.
10. While threading on a lathe, the carriage is moved by means of:
- (A) Lead screw
- (B) Hand wheel
- (C) Feed rod
- (D) Gear train
on a rack
11. The angle of I.S. thread (V shaped) is:
- (A) 29°
- (B) 47.5°
- (C) 50°
- (D) 60°
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