Butt joint
Lap joint
Double riveted lap joints
All types of joints
A. Butt joint
Carnot cycle
Stirling cycle
Otto cycle
Diesel cycle
Equal to
Less than
More than
None of these
Change the shape of the beam
Effect the saving in material
Equalise the strength in tension and compression
Increase the cross-section of the beam
(σx/2) + (1/2) × √(σx² + 4 τ²xy)
(σx/2) - (1/2) × √(σx² + 4 τ²xy)
(σx/2) + (1/2) × √(σx² - 4 τ²xy)
(1/2) × √(σx² + 4 τ²xy)
Element
Compound
Atom
Molecule
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
Plastic limit
Elastic limit
Yield point
Limit of proportionality
From maximum at the centre to zero at the circumference
From zero at the centre to maximum at the circumference
From maximum at the centre to minimum at the circumference
From minimum at the centre to maximum at the circumference
The failure of column occurs due to buckling alone
The length of column is very large as compared to its cross-sectional dimensions
The column material obeys Hooke's law
All of the above
The closed cycle gas turbine plants are external combustion plants.
In the closed cycle gas turbine, the pressure range depends upon the atmospheric pressure.
The advantage of efficient internal combustion is eliminated as the closed cycle has an external surface.
In open cycle gas turbine, atmosphere acts as a sink and no coolant is required.
Sum
Difference
Product
Ratio
0.01 to 0.1
0.23 to 0.27
0.25 to 0.33
0.4 to 0.6
Boyle's law
Charles' law
Gay-Lussac law
Avogadro's law
OC
OP
OQ
PQ
Enthalpy
Internal energy
Entropy
External energy
1 g
10 g
100 g
1000 g
More than 50 %
25-50 %
10-25 %
Negligible
Q1 - 2 = dU + W1 - 2
Q1 - 2 = dU - W1 - 2
Q1 - 2 = dU/W1 - 2
Q1 - 2 = dU × W1 - 2
The stress is the pressure per unit area
The strain is expressed in mm
Hook's law holds good upto the breaking point
Stress is directly proportional to strain within elastic limit
rγ - 1
1 - rγ - 1
1 - (1/r) γ/γ - 1
1 - (1/r) γ - 1/ γ
Fluids in motion
Breaking point
Plastic deformation of solids
Rupture stress
Zero
Minimum
Maximum
Infinity
Same
Double
Half
Four times
Partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast
Carbonisation of bituminous coal
Passing steam over incandescent coke
Passing air and a large amount of steam over waste coal at about 650°C
Cd⁴/D3n
Cd⁴/2D3n
Cd⁴/4D3n
Cd⁴/8D3n
Equal to
Directly proportional to
Inversely proportional to
Independent of
0.5 s.l.σt
s.l.σt
√2 s.l.σt
2.s.l.σt
Isothermal
Isentropic
Polytropic
None of these
Carnot cycle
Otto cycle
Joule's cycle
Stirling cycle
Increases power output
Improves thermal efficiency
Reduces exhaust temperature
Do not damage turbine blades