A. carbon
B. vanadium
C. manganese
D. cobalt
E. copper
Related Mcqs:
- Two pipe systems can be said to be equivalent, when the following quantities are same__________________?
A. friction loss and flow
B. length and diameter
C. flow and length
D. friction factor and diameter
E. velocity and diameter - Surveying tapes are made of a material having low coefficient of expansion and enough strength. The alloy used is__________________?
A. silver metal
B. duralumin
C. Hastelloy
D. monel metal
E. invar - Melting point of iron is__________________?
A. 1539°C
B. 1601°C
C. 1489°C
D. 1712°C
E. 1131°C - The percentage of carbon in low carbon steel is__________________?
A. 0.05%
B. 0.15%
C. 0.3%
D. 0.5%
E. 0.7%. - The usual composition of a soldering alloy is__________________?
A. tin, lead and small percentage of antimony
B. tin and lead
C. tin, lead and silver
D. tin and copper
E. tin, copper and lead - If a refractory contains high content of silicon, it means refractory is__________________?
A. acidic
B. basic
C. neutral
D. brittle
E. none of the above - The correct composition of Babbit metal is__________________?
A. 87.75% Sn, 4% Cu, 8% Sb, 0.25% Bi
B. 90% Sn, 2% Cu, 4% Sb, 2% Bi, 2% Mg
C. 87% Sn, 4% Cu, 8% Sb, 1% Al
D. 82% Sn, 4% Cu, 8% Sb, 3% Al, 3% Mg
E. none of the above - The relative heat absorption for successively added equal areas of boiler convection heating surfaces____________________?
A. increases
B. decreases
C. remains unaffected
D. first increases and then decreases
E. first decreases and then increases - In ordetjo obtain superheated steam, a superheater is added in an existing boiler. As as result, furnace vacuum will _________________?
A. remain unaffected
B. improve C. worsen
C. may improve/worsen depending on size
D. unpredictable - Gradually varied flow is__________________?
A. steady uniform
B. non-steady non-uniform
C. non-steady uniform
D. steady non-uniform
E. true one-dimensional
