V
V/2
2V
3V
A. V
Solid dispersed in gas
Solid dispersed in liquid
Liquid dispersed in gas
Gas dispersed in liquid
Working
Bearing
Yield
None of these
Martensitic
Bainitic
Carburised
Stressed
4
6
8
12
For a pressure vessel to be classified as 'thin vessel', the ratio of wall thickness to mean radius is less than 0.1
For calculating forces and efficiency of riveted joint, either rivet diameter or rivet hole diameter is used in case of pressure vessel and in structural work
Longitudinal joint is normally made butt joint to maintain the circularity of the vessel
Maximum diameter of the opening provided in a pressure vessel, which does not require any compensation is 200 mm
Work is done
Heat transfer takes place
Mass flow occurs across the boundary of the system
No chemical reaction takes place within the system
Helium
Oxygen
Carbon dioxide
None of these
Mechanical
Machining
Magnetic
Refractory
Butt
Lap
Welded
None of these
Petrol
LPG
Light hydrocarbon gases (e.g. butane or propane)
None of these
Linear displacement
Concavity/convexity
Surface texture
Flatness
Wet bulb
Dry bulb
Saturation
Dew point
Manganese
Phosphorous
Magnesium
Chromium
Weldability of high carbon steel is poorer compared to low carbon steel
Invar is a magnetic alloy
Magnetic permeability of the diamagnetic material is less than one
Martenistic transformation never goes to completion (i.e., 100%) at room temperature
Polymerisation
Photochemical reaction
Oxidation
None of these
Plastic deformation of material does not occur
Initiation of crack from below the surface does not occur
Initiation of crack occurs on the surface of the machine part
Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface
Sand
Magnesium silicate
Calcium silicate
Iron pyrite
3171Pa
3567Pa
1.01 × 105Pa
5000Pa
Arsenides of heavy metals
Antimonides of heavy metals
Arsenides & antimonides of heavy metals
Iron, cobalt and nickel
Boiling
Forced convection in air
Free convection in air
Conduction in air
Aluminium
Tin
Lead
Both (B) & (C)
Negative charge
Positive charge
Zero charge
Positive or negative charge depending upon the nature of the cell
Brass
Cast iron
Lead
Aluminium alloy
Asbestos cement
Steel
Cement concrete
Stoneware
Stainless steel
Graphite
Copper
Steel
Compared to the mass flow rate of cooling water, the rate of condensation of steam is invariably smaller
Maintaining vacuum on tube side is more difficult than that on the shell side
Water velocity can be increased conveniently to increase the overall heat transfer co-efficient because of its lower specific volume compared to steam
Condenser can act as a storage unit for condensed steam
Speed of the extruded material is same as that of ram speed
Redundant work is a function of the die angle
Relative motion between the billet surface and the container wall is always present
Hollow ram is used for indirect extrusion
α-rays
β-rays
Gamma rays & neutrons
Electrons
Dry air
Pure oxygen
Moisture
Sunlight