15651. Maximum consumption of limestone is in the __________ industry.
15652. Austenite is not
15653. Factor of safety in machine design is defined as the ratio of ultimate stress to __________ stress.
15654. Out of the following, the __________ pipe has the least corrosion resistance.
15655. With increase in steam pressure, its specific volume decreases
15656. Which of the following rays has the least wavelength?
15657. Hydrocyclone is a
15658. Device used as a standard for the calibration of pressure gauges is a
15659. X-rays are
15660. Diffusion co-efficient of a metal in a solid solution depends upon its
15661. Cast iron contains __________ percent carbon.
15662. Alloys having more than 80% copper are generally more
15663. Direct conversion of thermal energy to electrical energy is facilitated by the
15664. The minimum carbon content in steel should be __________ percent for it to respond to a hardening treatment.
15665. Angular displacement can be measured suitably by a
15666. Minimum temperature upto which water can be theoretically cooled down in the cooling tower by evaporative cooling is equal to the __________ temperature of air.
15667. Heat transfer to the water wall in a high pressure water wall type boiler furnace is mainly by
15668. Addition of beryllium to copper is done mainly to produce a/an __________ alloy.
15669. The maintenance of body equilibrium and co-ordination of all muscular activities are done by
15670. Resilience of a material is important, when it is subjected to
15671. Existence of velocity potential implies that the fluid is
15672. The velocity of sound in air is independent of changes in its
15673. A boy weighing 110lb climbs up a 50 ft high vertical destination in 100 seconds. Horse power of the boy is __________ hp.
15674. Endurance is a measure of fatigue limit of a metal. Fatigue crack in nitrided machine parts originates
15675. Carbon percentage in high speed steel tool material is 0.6 to 1.0. The hardness of carbon tool steels is increased, when it is alloyed with
15676. Draft allowance given to patterns is for
15677. Which of the following welding processes employs the highest welding temperature ?
15678. The best criterion for analysing an economic investment is the
15679. Deformation band is absent in materials having __________ lattice crystal structure.
15680. Out of the following, the rays having the lowest wavelength is the
15681. A fine grained grinding wheel should not be used for grinding __________ materials.
15682. What is the effect on the performance of the economiser in the thermal power plant boiler, if the feed water temperature is very low due to preheaters being out for repairs or starving of steam supply ?
15683. The bulk modulus of a material with Poisson's ratio of 0.5 is equal to
15684. Compression ratio of an I.C. engine is the ratio of the
15685. Two stroke engine compared to a four stroke engine has
15686. Ferrites are __________ magnetic.
15687. The pH value is the measure of hydrogen ion concentration in a solution. The term pH stands for the __________ in the solution.
15688. The Al2 O3 content of cryolite in Hall-Heroult's cell is maintained between __________ percent.
15689. Number of electrons in the outermost shell of a semi-conductor material is
15690. The velocity at which individual particles from a fluidised bed are carried away by the fluid passing through it, is defined as the
15691. Tip of the match stick contains a mixture of
15692. Which of the following is not an ore of aluminium ?
15693. Mechanism/phenomenon involved in the improvement of fatigue strength of a material by shot peening is the
15694. Springs are not made of
15695. Which one of the following diseases is not a viral disease?
15696. Monazite deposits constitute an important source for the following metal.
15697. α-rays are
15698. Heat treatment of steel is done to mainly change its __________ properties.
15699. Normal dosage of chlorine in public water supply scheme ranges from __________ ppm.
15700. In plants water and minerals are transported through