Thermal efficiency of an internal combustion engine is around __________ percent.
8
35
65
80
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- 'Ice point' is designated on Fahrenheit temperature scale by
- According to maximum shear stress failure criterion, yielding in material occurs, when the maximum shear…
- The pressure outside a bubble/droplet of liquid is __________ the internal pressure.
- Eutectoid composition of carbon steel at room temperature is
- Thermit welding is categorised as the __________ welding.
- Venturimeter is used to measure the flow rate of fluids in pipes, when the pipe is in __________ position.
- Addition of silicon to cast iron
- Work study deals with the __________ study.
- Powder metallurgy is used to produce
- The property of material, by which a given amount of energy is absorbed by it, without plastic deformation,…
- Out of the following the refractive index is the highest for
- The main constituent of bones is
- Chromium molybdenum steel cannot be welded using __________ welding.
- Oxyacetylene reducing flame is used while carrying out welding on
- The usual energy consumption in electric arc furnace steel making is __________ KWh/ton of steel.
- Brinell Hardness Number (BHN) for talc is approximately in the range of
- In a boundary layer developed along the flow, the pressure decreases in the downstream direction. The…
- Which of the following is not the function of a volute casing provided in a centrifugal pump?
- The underground well of a biogas plant is called the
- Brazing is the joining of metals
- For infinite parallel planes having emissivities ε1 & ε2, the interchange factor for radiation…
- Two solutions A1 & A2 have pH value of 2 & 6 respectively. It implies that the solution
- Dryness fraction of dry steam is
- Corona discharge is related to the operation of a/an
- Transformer cores are normally made from
- Strain hardening effect in metals subjected to cold working is due to the __________ mechanism.
- The value of for air & most common gases can be safely assumed to be
- Hot dipping process is used for coating a low melting point metal (e.g. Pb, Sn, Zn) on iron, steel &…
- Dielectric
- Cold working of a material results in increase in hardness, which is termed as the __________ hardening.