Related Questions

Which of the following methods is used to control temperature in resistance furnaces?
A Variation of resistance
B Variation of voltage
C Periodical switching on and off of the supply
D All of the above methods
Maximum heat transfer in high temperature furnaces is by
A Conduction
B Convection
C Radiation
D Either A, B or C; depends on the type of furnace
Which of the following represents examples of an IT input device, output device and storage device respectively ?
A bar code reader, CD drive, projector
B keyboard, monitor, hard disc
C printer, DVD drive, joystick
D printer, mouse, monitor
A man wishes to cover his floor with tiles, each one measuring 3/4 inch by 2 inches. If his room is rectangular, measuring 12 feet by 18 feet, how many such tiles will he need?
A 144
B 1152
C 1728
D 20736
The water in a fish tank measuring 114 feet by 8 inches is 7 inches high. The water is poured into another tank measuring 14 inches by 20 inches. What will be the height of water, in inches, in the second tank?
A 1/4
B 2
C 3
D 1/12
Which of the following is the common pollutant emitted from metallurgical smelters, thermal power plant and cement plants?
A NOx
B Hg
C SO2
D F
The metallurgical process in which a metal is obtained in a fused state is called
A smelting
B roasting
C calcinations
D froth floatation
The fuel mostly used in cement industry and in metallurgical processes is
A wood charcoal
B bituminous cock
C pulverized coal
D coke
Volatile matter content of metallurgical coke may be around __________ percent.
A 1-2
B 10-15
C 22-26
D 30-33
Quantity of coke produced from metallurgical coal may be around __________ percent.
A 30
B 50
C 75
D 95

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