Hollow shafts can be made as strong as solid shafts by making the twisting moments of both the shafts same. Shafts made by __________ have residual stresses.
Forging
Cold rolling
Hot rolling
Casting
- __________ the exhaust gas is an indication of the incomplete combustion of fuel.
- The material used for coating the welding electrode is termed as the
- Which of the following is used to produce draught in the locomotive boilers?
- Pick out the wrong statement about the machinability of metals. Machinability of a metal
- Holes for riveting purposes should be preferably made by
- Inertial forces are obtained, when the elastic forces are multiplied by __________ number.
- A highly elastic material is deformed least on loading and retains its original form on removal of the…
- The main reducing agent in iron blast furnace is
- Maximum hardenability of steel depends upon its
- The expected efficiency of a single riveted lap joint is of the order of 50%. If the thickness of the…
- __________ of test specimens is not involved in any hardness testing method.
- X-rays are
- Window panes of aeroplanes are normally made of
- In the X-ray radiography technique, the tube voltage for thicker plates as compared to thin plates,…
- Pick out the correct statement.
- Mho's scale of hardness, which consists of 10 standard minerals is used for the measurement of __________…
- What is the value of included angle of a triangular notch for maximum discharge?
- Use of economiser in a boiler plant reduces the fuel consumption for steam generation by about __________…
- __________ can replace tungsten in high speed steel.
- Coarse grained steels have
- Addition of __________ to steel does not help in improving its machinability.
- __________ is the most suitable lubricant for drawing mild steel wires?
- 'Flare tower' used in industry is meant for
- Fog is an example of colloidal system of
- M10 index of coke indicates its
- The efficiency of a Carnot heat engine operating between absolute temperatures T1 and T2 (when, T1 >…
- Which of the following is the correct nature of shear stress distribution along the cross section in…
- Out of the following, the joint produced by __________ has the lowest strength.
- Direct conversion of thermal energy to electrical energy is facilitated by the
- Maximum amount of thermal radiation is emitted at all wavelengths at any specified temperature by a/an…