Starting friction is low in case of the __________ lubrication.
Boundary
Hydrodynamic
Hydrostatic
Mixed/semi-fluid
- Venturimeter is used to measure the flow rate of fluids in pipes, when the pipe is in __________ position.
- Addition of small amount of __________ to grey cast iron is done to produce nodular grey cast iron.
- Sacrificial anode method is used in the protection of pipelines which are buried underground. Sacrificial…
- The elastic strain in copper is due to the
- The expected efficiency of a single riveted lap joint is of the order of 50%. If the thickness of the…
- Use of economiser in a boiler plant reduces the fuel consumption for steam generation by about __________…
- Property responsible for the talcum powder to cling to the skin is the
- Circular cross section machine parts which are symmetrical about the axis of rotation are made by hot
- In connection with corrosion of metals, passivation is the process that
- Heating of ferromagnetic materials to a temperature above Curie temperature makes it
- Corrosion is
- The unit of gc is
- Even though heat transfer co-efficient in boiling liquids is large, use of fins is advantageous, when…
- Which of the following rays has the least wavelength?
- Heat transfer by __________ is almost absent in case of fluidised bed drying operation.
- The transition temperature at which all the ferromagnetic materials become paramagnetic materials is…
- Screws are specified by their __________ diameters.
- __________ of hard alloy and tool steel is done to make it easily machinable.
- Which of the following emissions in the exhaust gas of an I.C. engine causes the formation of photochemical…
- Out of the following substances, one ton of __________ will store the maximum heat for a rise of 30°C…
- Cobalt - 60 is used as a source of __________ in medical therapy & industrial radiography.
- The 'laughing gas' is
- Work hardenable alloy steel used to make the bucket wheel excavators, blades of bulldozers and other…
- Water hammer is caused in steam carrying pipelines, because of
- A 2 kg object weighs 1.8 kgf on a spring balance. The value of 'g' at that location in m/sec2 is
- Work study deals with the __________ study.
- Which of the following test is used for distinguishing among dry oils, semi-drying oils and non drying…
- In the diving apparatus, helium is used along with oxygen, because it is
- Which of the following mainly decides the current to be employed is arc welding?
- The value of for air & most common gases can be safely assumed to be