Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are
Cobalt, chromium & tungsten
Cobalt, chromium & nickel
Molybdenum, tungsten & chromium
Cobalt, zirconium & molybdenum
Also checkout these categories
Sentence Correction MCQ Electrical Circuits MCQ Adobe Flash MCQ Machine Input Mi-set 2 MCQ Theory of Machines MCQ Drawing Inference MCQ Fact MCQ Decision Making MCQ Chemical Engineering Thermodynamics MCQ Clause Analysis MCQ Synthesis of Sentences MCQ Rearrangement Set 1 MCQ
- Thermal efficiency of an internal combustion engine is around __________ percent.
- The kinematic viscosity (in stoke) and the absolute/dynamic viscosity (in poise) are the same for __________…
- Principal alloying element in Elinvar (used for making hair springs for watches) is
- Which of the following is the most wear resistant grade of carbide used for the cutting tools?
- Change in volume of metals from absolute zero temperature to their melting points is
- Which of the following performance characteristics of a S.I engine is not affected by the front end…
- Load cells used for the measurement of weight has
- The most important function of a washer is to provide bearing area and washers are normally specified…
- What is the critical radius of insulation (cms) for a metallic cylinder, if the convective heat transfer…
- Powder metallurgy technique is used in the production of __________ tools.
- The same volume of all gases is representative of their
- The main charge in blast furnace is usually
- Percentage of differential pressure lost in a Venturimeter with a tapering of 15° may be about
- Saturated steam at a pressure of 25 kg/cm2 is throttled to attain 5 kg/cm2. Then the outcoming steam…
- The following thermocouple may be used for measuring temperature upto 1873°K.
- The concentration of (H+) ions is 4 x 10-5 in a solution. Then pH of the solution will be (Given log…
- The ratio of mass of a neutron to that of an electron is about 1839. What is the ratio of the mass of…
- The activity co-efficient of the solute in a dilute solution
- Which of the following materials has the least scrap value?
- Which of the following is not an explosive?
- Transformer cores are normally made from
- Out of the following, maximum temperature drop for a given heat flow & for the same thickness will be…
- Pressure exerted by a liquid depends upon its
- Limestone is added in the blast furnace (during pig iron manufacture) to
- The lightest non-inflammable gas is
- The burnout heat flux in the nucleate boiling regime is not a function of the
- Specific __________ is a dimensionless quantity.
- Resilience of a bolt can be increased by increasing its
- Temperature profile along the length of a gasgas counter flow heat exchanger is correctly represented…
- Which of the following is the most suitable material of construction for the condenser tubes, where…