Air/fuel ratio on molar (volume) basis for combustion of methane with theoretical quantity of air with be
9.5 : 1
12.5 : 1
15.5 : 1
18.5 : 1
- Which of the following metals is the most prone to work hardening?
- The maximum thickness of the metal which can be welded using ultrasonic welding is __________ mm.
- Earing is a defect found in steels after the following metal working operation.
- Shaft/rotor speed is most accurately measured by a
- Name the safety device used to protect the boiler, when the water level falls below a minimum level.
- In case of brasses, with decreasing zinc percentage and increasing copper percentage, its __________…
- Which of the following equipments is used for liquid dispersion?
- __________ test determines the yield strength, Young's modulus of elasticity, percentage reduction in…
- With increase in temperature, the electrical conductivity of a __________ decreases.
- Dislocations are __________ defects.
- __________ flux is used for the extraction of metal from its self fluxing ores.
- Oxyacetylene reducing flame is used while carrying out welding on
- Which of the following is a commonly used manometric liquid for low pressure range?
- Fibrous fracture is normally encountered in the __________ materials.
- While the thermosetting polymers are amorphous in nature, the thermoplastic polymers are either amorphous…
- Which of the following processes follows the hardening process for reducing the hardening strains &…
- The main reducing agent in iron blast furnace is
- Materials having __________ lattice structure are usually the most ductile.
- A solution which resists change in its pH value on addition of acid/alkali is called the __________…
- The heat released by cooling one mole of copper from 400 K to room temperature (300 K) is (assume :…
- Silicon percentage in the silicon steel used for electrical appliances/equipments is
- In __________ process, there is an increase in entropy with no degradation of energy.
- A material being tested for endurance strength is subjected to the __________ load.
- Which of the following does not have a sharp melting point?
- Fire in fuel gas pipelines is extinguished most effectively by
- In the Bayer's process, bauxite is digested under pressure using
- 'Ice point' is designated on Fahrenheit temperature scale by
- Water-tube boiler is the one, in which
- __________ property of steel increases by addition of large amount of silicon in it.
- Pick out the wrong conversion of absolute & kinematic viscosities.