SCREWED JOINTS MULTIPLE CHOICE QUESTIONS (MCQ) WITH ANSWERS
SCREWED JOINTS
MULTIPLE CHOICE QUESTIONS
(MCQ) WITH ANSWERS
MCQ on screwed joints increase depth
of understanding and clarity. This helps
in the proper selection of a screwed joint
in a particular application.
1. A screwed joint is a
-
Temporary joint
-
Permanent joint
-
Temporary as well as permanent joint
-
None
Ans: (a)
2. In a fanged coupling, two flanges are connected by a
-
Welded joint
-
Riveted joint
-
Screwed joint
-
None
Ans: (c)
3. Which type of screw fastener is threaded at both the ends?
a. Through bolt
b. Tap bolt
c. Studs
d. None
ANS: (c)
4. Which type of screw fastener is threaded throughout its length
(a) Studs
(b) Tap bolt
(c) Set Screw
(d) None
ANS: (c)
5. When the screw of a screw jack rotates, load kept on it moves
(a) Axially downwards
(b) axially upwards
(c) Axially downward or upwards
(d) None
ANS: ( c)
6. Multiple threads are used to achieve
(a) Increased load lifting capacity
(b) Low efficiency
(c) high efficiency
(d) None
ANS: (c )
7. To transmit power in one direction, which type of screw threads are used?
(a) Acme threads
(b) Square threads
(c) Buttress threads
(d) None
ANS: (c )
8. Which joint is best under vibrations?
9. Set screws are subjected to
(a) Tensile forces
(b) Compressive forces
(c) Both tensile and compressive
(d) None
ANS: (b)
-
Name the tool used to cut external threads
-
Both Tap and die
-
Die
-
Tap
-
None
Ans: (b)
-
Tool used to cut internal threads
-
Tap
-
Die
-
Tap as well as die
-
None
Ans: (a)
-
Distance traveled in one full rotation of the nut is called
-
Lead
-
Circular pitch
-
Linear pitch
-
None
Ans: (c)
-
Diameter of a main body of a bolt is
-
Constant
-
Variable
-
Partially constant and partially variable
-
None
Ans: (a)
-
Screw main body diameter is
-
Variable
-
Constant
-
Partially constant and partially variable
-
None
Ans: (a)
-
Shank of the bolt is
-
Threaded throughout the length
-
Threaded for partial length
-
Not threaded at all
-
None
Ans: (b)
-
A stud has threads on its shank from
-
One side
-
Both sides
-
Uses a nut for tightening
-
None
Ans: (b)
-
Screw connects two parts having
-
Internal threads
-
External threads
-
Internal as well as external threads
-
None
Ans: (a)
-
Stud uses a
-
Nut on one side
-
Both sides uses a nut
-
No nut
-
None
Ans: (c)
-
Significance of M 16 x 1.5 x 20 in case of a bolt is
-
Length x pitch x diameter
-
Diameter x pitch x length
-
No. of threads x Diameter x pitch
-
None
Ans: (b)
-
Crest diameter of a screw thread is the
-
-
Minor diameter
-
Major diameter
-
Core diameter
-
None
-
Ans: (b)
-
Root diameter of a screw thread is the
-
-
(Major – Minor) diameter
-
Major diameter
-
Core diameter
-
None
-
Ans: (c)
-
Meaning of designation M 30 x 3 for a bolt is
-
That Metric threads of 30 mm in number with 3 mm pitch
-
The Metric threads of 30 mm diameter with 3 threads per mm
-
Metric threads of 30 mm outside diameter and 3 mm pitch
- None
-
Ans: (c)
-
That fastener prevents relative motion between parts being connected
-
Set screws
-
Bolt
-
Stud
-
None
Ans: (a)
-
Which type of nut prevents slipping while tightening
-
Square nut
-
Hexagonal nut
-
Castle nut
-
None
Ans: (b)
-
In case of a single start thread, lead is equal to
-
1/pitch
-
1 pitch
-
Diameter of bolt
-
None
Ans: (b)
-
In a double start thread, lead is equal to
-
2/pitch
-
Diameter of bolt x 2
-
2 x pitch
-
None
Ans: (c)
-
Angle of ACME thread is
-
290
-
390
-
590
-
None
Ans: (i)
-
. BUTTRESS thread angle is
-
350
-
550
-
450
-
None
Ans: (c)
-
TRAPEZOIDAL thread angle is
-
200
-
400
-
500
-
None
Ans: (d)
-
Thread is the most efficient
-
Square thread
-
ACME thread
-
V-thread
-
None
Ans: (a)
-
ACME screw thread is of
-
V- thread form
-
Trapezoidal thread form
-
Square thread form
-
None
Ans: (b)
-
General purpose screw thread is of
-
V-thread form
-
Square thread form
-
Trapezoidal thread form
-
None
Ans: (a)
-
Metric designation M 20 x 2 is for an
-
External thread
-
Internal thread
-
Both for internal as well as external thread
-
None
Ans: (b)
-
Type of thread is used in screw jacks
-
ACME thread
-
V-thread
-
Square thread
-
None
Ans: (c)
-
Screw jack is used where do we need
-
Rotational motion
-
Linear motion
-
Linear as well as rotational motion
-
None
Ans: (b)
-
Square thread screw jack is used to lift
-
Light loads
-
Light as well as heavy loads
-
Bending loads
-
None
Ans: (d)
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