A. Manganin
B. Monel metal
C. Perminvar
A. Moisture
B. Volatile matter
D. Carbon
A. Increases its hardness
B. Increases its strength
C. Is desirable
A. Pressure gradient and the compressibility of the flowing medium
C. Surface roughness and curvature (i.e. sharp corners)
D. Vibration
A. None of these
C. Isothermal
D. Isometric
A. Shifting the equilibrium towards right
B. Shifting the equilibrium towards left
C. None of these
A. Wrought
C. White cast
D. None of these
A. Vermiculite
C. Slag wool
D. Ceramic fibre blanket
A. Rotational
B. Turbulent
C. Non-viscous
B. 1.3
D. 0.87
B. Low head but high discharge
C. Slurries of high solid concentration
D. Highly viscous liquid
B. 50
C. 30
D. 1
A. Shot blasting
C. Cold working
D. Heating
A. Depends on the roughness
B. None of these
D. Does not depend on Reynolds number
B. N/m
C. N/m3
D. N
A. 88.8
B. 33:03:00
C. 50
B. 750
C. 1100
D. 500
A. Plain carbon steel
B. Stainless steel
C. Thermosetting plastic material
A. All A., B. and C.
B. Pressure
D. Total energy
A. Easily machinable
C. Soft on surface
A. Pig iron
B. Grey cast iron
C. White cast iron
A. 2.5
B. 2.2
C. 2.8
A. Calcite
B. Topaz
D. Carborundum
A. Grey iron
B. Bessemer iron
D. Pig iron
A. Molybdenum and zinc
B. Molybdenum and aluminium
C. Molybdenum and nickel
A. Butterfly valve
C. Globe valve
D. Gate valve
A. Nickel
B. Brass
D. PVC
A. Lead
B. Silica
D. Fireclay
A. Cast iron
C. Karbate
D. Mild steel
A. Phosphorous
C. Carbon
D. Iron
A. Low viscosity & surface tension
B. Non-sticky & non-corrosive nature
D. Low co-efficient of thermal expansion
A. Relief
C. Direction control
D. Pressure reduction
A. 8
B. 2
D. 6
B. Electric cable sheathing
C. Lead lined vessels
D. Solder alloys
B. Vanadium
C. Molybdenum
D. Chromium
A. Navier-stokes equation
D. Stokes law
B. Does not produce tangential current
C. Produces only tangential current
D. Produces only radial current
A. Copper and nickel
B. Copper and tin
D. Tin, zinc and nickel
B. Point velocity
C. Maximum velocity
D. Pressure
A. Either of A., B. or C.
B. Increasing the number of vanes in the impeller
C. Increasing the impeller speed and the volute area
A. 5.2
C. 3.8
D. 4.8
A. 12
C. 8
D. 20
A. Metalloy
B. Non-crystalline ceramics
D. Pellets
A. Aluminium brass alloy
B. Muntz brass
C. Cartridge brass
C. Concentrated acidic
D. Dilute acidic
B. Total
C. Friction
D. Static
A. Toughness
B. Wear resistance
C. Hardenability
A. Zinc & tin
B. Copper & nickel
D. Copper & zinc
A. Static pressure
C. Dynamic pressure
D. Velocity at the stagnation point
A. Discharge and overall efficiency
C. Angle swept by the crank pin at any instant and the discharge
Showing 6801 to 6850 of 8709 mcqs