Ammonia leakage in the refrigeration system is detected by
Sulphur stick, which on detection gives white smoke
Using chemical reagents
Its smell
Soap solution
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- Addition of silicon to cast iron
- The trace metal present in insulin is
- Pick out the wrong statement about the machinability of metals. Machinability of a metal
- Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the
- The refrigerant freon-12 is chemically
- Co-efficient of performance of a Carnot cycle refrigerator operating between - 23°C and + 27°C…
- Insulation of liquid surface can be achieved by __________ on top of its surface.
- For separating small pieces of metal from engine oil of a car, the best separating technique is the
- Silicon percentage in silicon steel used for electrical equipments is about
- Powder metallurgy technique is used in the production of __________ tools.
- Pick out the correct combination about the role of various additives used in polymers.
- Machinability of hard alloys and tool steels is improved by
- Absolute zero, pressure will occur, when the molecular momentum of the system becomes zero. A liquid…
- The laminar boundary layer thickness in zero pressure gradient flow over a flat plate along the x-direction…
- The bolt is subjected to __________ when the nut is tightened by putting the washer beneath it.
- Load cells used for the measurement of weight has
- In troposphere (the weather domain), the temperature 't' at height 'h' above the sea level in metres…
- Maximum consumption of limestone is in the __________ industry.
- The most important function of a washer is to provide bearing area and washers are normally specified…
- With increasing carbon percent in steel beyond 0.8%, its ultimate tensile strength (UTS) and __________…
- Inertial forces are obtained, when the elastic forces are multiplied by __________ number.
- Resilience of a bolt can be increased by increasing its
- The main constituent of bones is
- Limestone is added in the blast furnace (during pig iron manufacture) to
- If the head is doubled in & centrifugal pump, the power required will increase in the ratio of
- Tempering of a material does not improve its
- Fog is an example of colloidal system of
- Bad odour in sanitary latrines is reduced by periodically sprinkling
- Which of the following is resistant to the action of both heat & chemicals?
- Blast furnace slag is mainly molten