Machine Design Quiz | Machine Design Multiple Choice Questions(MCQs) with Answers

Sports GK Questions and Answers 2024 (Latest Updated)

Awards & Honours GK Questions 2024 (Latest Updated)

Questions
61 Which of the following is an antifriction bearing?
A journal bearing
B pedestal bearing
C collar bearing
D needle bearing

Answer: needle bearing
62 The metal suitable for bearings subjected to light loads is
A silicon bronze
B white metal
C monel metal
D phosphor bronze

Answer: phosphor bronze
Advertisement
Article and Schedule Quiz Start Test!
DOWNLOAD CURRENT AFFAIRS PDF FROM APP
63 Which of the following statement is correct ?
A The toughness of a material increases when it is heated.
B The shear stress in a beam varies from zero at the neutral surface and maximum at the outer fibres.
C The stress concentration in static loading is more serious in brittle materials and less serious in ductile materials.
D The stress concentration in static loading is more serious in ductile materials and less serious in brittle materials.

Answer: The stress concentration in static loading is more serious in brittle materials and less serious in ductile materials.
64 In a gear, having involute teeth, the normal to the involute is a tangent to the
A pitch circle
B base circle
C addendum circle
D dedendum circle

Answer: base circle
65 The radial distance of a tooth from the pitch circle to the top of the tooth is called
A dedendum
B addendum
C clearance
D working depth

Answer: addendum
66 The shock absorbing capacity of a bolt can be increased by
A tightening it properly
B increasing shank diameter
C using washer
D making shank diameter equal to core diameter of thread.

Answer: making shank diameter equal to core diameter of thread.
67 When a bolt is subjected to shock loading, the resilience of the bolt should be considered in order to prevent breakage at
A shank
B head
C in the middle
D at the thread

Answer: at the thread
68 If an application calls for stresses on screw threads in one direction only, then the following type of thread would be best suited
A square
B acme
C buttress
D BSW

Answer: buttress
69 The connecting rod bolts are tightened up with initial tension greater than the external load so that
A joint may not open up
B bolts are weakest elements
C the resultant load on the bolt would not be affected by the external cyclic load
D bolts will not loosen during service

Answer: the resultant load on the bolt would not be affected by the external cyclic load
70 The connecting rod bolts are tightened up so that tightening stress
A is just sufficient to hold parts together
B approaches yield point
C is 50% of yield point
D is about yield point divided by safety factor

Answer: approaches yield point
71 Allen bolts are
A self locking bolts
B designed for shock load
C used in aircraft application
D provided with hexagonal depression in head

Answer: provided with hexagonal depression in head
72 For standard coarse threads of nut, the threads will be as strong in failure by shear as the bolt in tension, if the height of nut (h) is approximately
A 0.4 times
B 0.6 times
C 0.7 times
D 0.8 times

Answer: 0.4 times
73 Basic hole is one
A whose upper deviation is zero
B whose lower deviation is zero
C whose lower as well as upper deviations are zero
D does not exist

Answer: whose lower deviation is zero
74 Basic shaft is one
A whose upper deviation is zero
B whose lower deviation is zero
C whose lower as well as upper deviations are zero
D does not exist

Answer: whose upper deviation is zero
75 shearing stress in nut is half the tensile stress in a bolt, then nut length should be equal to
A diameter of bolt
B 0.75 x diameter of bolt
C 1.25 x diameter of bolt
D 1.5 x diameter of bolt

Answer: diameter of bolt
76 In composite or reverse laid ropes
A direction of twist of wires in strands is opposite to the direction of twist of strands
B direction of twist of wires and strands are same
C wires in two adjacent strands are twisted in opposite direction
D wires are not twisted

Answer: wires in two adjacent strands are twisted in opposite direction
77 In cross or regular lay ropes
A direction of twist of wires in strands is opposite to the direction of twist of strands
B direction of twist of wires and strands are same
C wires in two adjacent strands are twisted in opposite direction
D wires are not twisted

Answer: direction of twist of wires in strands is opposite to the direction of twist of strands
78 Three different weights fall from a certain height under vacuum. They will take
A same time to reach earth
B times proportional to weight to reach earth
C times inversely proportional to weight to reach earth
D unpredictable

Answer: same time to reach earth
79 In V-belt drive, belt touches
A at bottom
B at sides only
C both at bottom and sides
D could touch anywhere

Answer: at sides only
80 In oilness bearings
A the oil film pressure is generated only by the rotation of the journal
B the oil film is maintained by supplying oil under pressure
C do not require external supply of lubricant
D grease required to be applied after some intervals

Answer: do not require external supply of lubricant

Random GK Questions

Q. When Mahatma Gandhi set out on the Dandi march, he was accompanied, among others, by:
Q. The first architectural achievement of Jahangirs reign in India was the construction of his fathers mausoleum. Where was it built ?
Q. Value-added means value of
Q. The freezer in a refrigerator is fitted near the top
Q. The largest share of India’s national income originates in the
Q. Who took the highest number of wickets in ICC Cricket world cup 2015?
Assam Direct Recruitment Test Series

Teacher Eligibility Test

Assam Direct Recruitment Test Series