When two plates are butt together and riveted with cover plates with two rows of rivets, the joint is known as
Lap joint
Butt joint
Single riveted single cover butt joint
Double riveted double cover butt joint
Correct Answer :
D. Double riveted double cover butt joint
Related Questions
A masonry dam may fail due to
Tension in the masonry of the dam and its base
Overturning of the dam
Crushing of masonry at the base of the dam
Any one of the above
In order to prevent crushing of masonry at the base of the dam, the maximum stress should be __________ the permissible stress of the soil.
Equal to
Less than
More than
None of these
Coke is produced
When coal is first dried and then crushed to a fine powder by pulverising machine
From the finely ground coal by moulding under pressure with or without a binding material
When coal is strongly heated continuously for 42 to 48 hours in the absence of air in a closed vessel
By heating wood with a limited supply of air to a temperature not less than 280°C
Shear modulus is the ratio of
Linear stress to linear strain
Linear stress to lateral strain
Volumetric strain to linear strain
Shear stress to shear strain
In a prismatic member made of two materials so joined that they deform equally under axial stress, the unit stresses in two materials are
Equal
Proportional to their respective moduli of elasticity
Inversely proportional to their moduli of elasticity
Average of the sum of moduli of elasticity
In closed cycle gas turbine, the air is compressed
Isothermally
Isentropically
Polytropically
None of these
A bar of copper and steel form a composite system, which is heated to a temperature of 40°C. The stress induced in the copper bar will be
Tensile
Compressive
Shear
Zero
Which is the incorrect statement about Carnot cycle?
It is used as the alternate standard of comparison of all heat engines.
All the heat engines are based on Carnot cycle.
It provides concept of maximising work output between the two temperature limits.
All of the above
For the beam shown in the below figure, the shear force diagram between A and B is
A horizontal line
A vertical line
An inclined line
A parabolic curve
In the below figure, curve D represents_________.
Mild steel
Cast iron
Concrete
Bone of these
The behaviour of super-heated vapour is similar to that of
Perfect gas
Air
Steam
Ordinary gas
Which of the following is an intensive property of a thermodynamic system?
Volume
Temperature
Mass
Energy
Workdone during adiabatic expansion is given by (where p1 v1, T1 = Pressure, volume and temperature for the initial condition of gas, p2, v2, T2 = Corresponding values for the final condition of gas, R = Gas constant, and γ = Ratio of specific heats)
(p1 v1 - p2 v2)/(γ - 1)
[m R (T1 - T2)] /(γ - 1)
[m R T1/(γ - 1)][1 - (p2 v2 /p1 v1)]
All of these
One kg of carbon monoxide requires _______kg of oxygen to produce 11/7 kg of carbon dioxide gas.
11/7
9/7
4/7
All of the above
The given figure shows the Mohr's circle of stress for two unequal and like principal stresses (σx and σy) acting at a body across two mutually perpendicular planes. The normal stress on an oblique section making an angle θ with the minor principle plane is given by
OC
OP
OQ
PQ
The pull required to crush the rivet per pitch length is
p.t.σt
d.t.σc
π/4 × d² × σt
π/4 × d² × σc
The distillation carried out in such a way that the liquid with the lowest boiling point is first evaporated and recondensed, then the liquid with the next higher boiling point is then evaporated and recondensed, and so on until all the available liquid fuels are separately recovered in the sequence of their boiling points. Such a process is called
Cracking
Carbonisation
Fractional distillation
Full distillation
The heating of a gas at constant pressure is governed by
Boyle's law
Charles' law
Gay-Lussac law
Avogadro's law
The process is adiabatic, if the value of n in the equation pvn = C, is
0
1
γ
∝
When a bar is subjected to a change of temperature and its deformation is prevented, the stress induced in the bar is
Tensile stress
Compressive stress
Shear stress
Thermal stress
For the same compression ratio, the efficiency of dual combustion cycle is
Greater than Diesel cycle and less than Otto cycle
Less than Diesel cycle and greater than Otto cycle
Greater than Diesel cycle
Less than Diesel cycle
The lower layer of the beam as shown in the below figure, will be
In tension
In compression
Neither in tension nor in compression
None of these
Carnot cycle has maximum efficiency for
Petrol engine
Diesel engine
Reversible engine
Irreversible engine
In an ideal gas turbine plant, it is assumed that the compression and expansion processes are
Isothermal
Isentropic
Polytropic
None of these
The bending moment of a cantilever beam of length l and carrying a uniformly distributed load of w per unit length is __________ at the fixed end.
wl/4
wl/2
wl
wl²/2
The air standard efficiency of an Otto cycle is given by (where r = Compression ratio, and γ = Ratio of specific heats)
1 - rγ - 1
1 + rγ - 1
1 - (1/ rγ - 1)
1 + (1/ rγ - 1)
If Th is the torque resisting capacity of a hollow shaft and Ts is that of a solid shaft, of the same material, length and weight. Then,
Th > Ts
Th < Ts
Th = Ts
None of these
The calorific value of gaseous fuel is expressed in
kJ
kJ/kg
kJ/m2
kJ/m3
A tri-atomic molecule consists of __________ atoms.
One
Two
Three
Four
The deformation of a bar under its own weight is _________ the deformation, if the same body is subjected to a direct load equal to weight of the body.
Equal to
Half
Double
Quadruple