Related Questions

The hoop stress in a riveted cylindrical shell of diameter (d), thickness (t) and subjected to an internal pressure (p) is (where $$\eta $$ = Efficiency of the riveted joint)
A $$\frac{{{\text{pd}}}}{{{\text{t}}\eta }}$$
B $$\frac{{{\text{pd}}}}{{2{\text{t}}\eta }}$$
C $$\frac{{{\text{pd}}}}{{4{\text{t}}\eta }}$$
D $$\frac{{{\text{pd}}}}{{8{\text{t}}\eta }}$$
When two computers communicate with each other, they send information back and forth. If they are separated by a reasonable distance, they can send and receive the information through a direct cable connection which is called a null-modem connection. Presently what is the maximum distance in metres permitted in this null-modem connection?
A 80
B 100
C 30
D 150
E None of the above
For a given stress, the ratio of moment of resistance of a beam of square cross-section when placed with its two sides horizontal to the moment of resistance with its diagonal horizontal, is
A $$\frac{1}{2}$$
B 1
C $$\frac{1}{{\sqrt 2 }}$$
D $$\sqrt 2 $$
নয়টি বেলনাকৃতির তার, যাদের প্রতিটির ব্যাস d ও দৈর্ঘ্য L, একত্রে শ্রেণি সজ্জায় সংযুক্ত আছে। সজ্জাটির রোধ যদি একটি L দৈর্ঘ্যের বেলনাকৃতির তারের রোধের সমান হয়, তবে তারটির ব্যাস কত? (Nine cylindrical wires each of diameter d and length L are connected in series. If the resistance of the connection is equal to the resistance of another cylindrical wire of length L, then what is the diameter of the wire?)
A 3d
B 9d
C d3
D d9
In riveted boiler joints, all stresses, shearing, bearing and tensile are based on the
A Size of rivet
B Size of the drilled or reamed hole
C Average of size of rivet and hole
D Smaller of the two
According to I.B.R., the factor of safety of riveted joint should not be less than
A 1
B 2
C 3
D 4
Efficiency of a riveted joint is the ratio of its strength (max. load it can resist without failure) to the strength of the unpunched plate in
A Tension
B Compression
C Bearing
D Any one of the above
A riveted joint in which every rivet of a row is opposite to other rivet of the outer row, is known as
A Chain riveted joint
B Diamond riveted joint
C Crisscross riveted joint
D Zigzag riveted joint
A welded joint as compared to a riveted joint has __________ strength.
A Same
B Less
C More
D None of these
Minimum pitch provided in riveted steel tanks is (where d is diameter of rivets)
A 1.5 d
B 2.0 d
C 2.5 d
D 3.0 d

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