A. Perspex (PMMA)
B. Teflon (PTFE)
C. Bakelite (phenol formaldehyde)
D. Polystyrene
Related Mcqs:
- The first law of thermodynamics is a statement of conservation of_____________________?
A. Heat
B. Momentum
C. Energy
D. Work - Fibrous fracture is normally encountered in the ____________________ materials?
A. Hard
B. Elastic
C. Ductile
D. Brittle - Which of the following is normally not found in both the S.I. (petrol) & C.I. (diesel) engines ?
A. Air filter
B. Fuel injector
C. Exhaust silencer
D. Battery - _____________ calorimeter is normally used for measuring the dryness fraction of steam, when it is very low?
A. Bucket
B. Throttling
C. Separating
D. A combination of separating & throttling - Water flow in the river during flood can be categorized as the _________________ flow ?
A. Unsteady uniform
B. Unsteady non-uniform
C. Steady uniform
D. Steady non-uniform - In fluid flow, and heat and mass transfer, one encounters (i) kinematic velocity (μ), (ii) molecular diffusivity (ζ) and thermal diffusivity (α). The units of these quantities are ?
A. μ , α and θ all have units of m/s
B. μ , α and θ all have units of m2/s
C. α and θ have units of m2/s, while μ has unit of m/s
D. α and θ have units of m/s, while μ has unit of m2/s - Drills are usually made of__________________?
A. Cermets
B. High speed steel
C. Alloy steel
D. Tungsten carbide - Material of construction of the electrode used in the electric resistance welding is___________________?
A. Stainless steel
B. Graphite
C. Copper
D. Steel - TLV of NO2 & NO exposure for the human being is 5 & 25 ppm respectively. Prolonged exposure of human being to NO2 causes_________________?
A. Skin disorder
B. Bronchitis
C. Bone disease
D. Cancer - What are the methods of treatment & disposal of radioactive wastes ?
A. Evaporation & chemical precipitation
B. Biological methods & adsorption in ion exchange materials
C. Fixing into a solid mass with cement and sinking deep in the sea
D. All A., B. & C.
