Related Questions

The casting method adopted for ornaments and toys of nonferrous alloys, is
A Permanent mould casting
B Slush casting
C Die casting
D Centrifugal casting
This is used in applications for nonferrous construction:
A Copper tubing
B Steel pipe
C PVC pipe
D Iron tubing
Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio
A 50 : 20 : 20 : 10
B 40 : 30 : 20 : 10
C 50 : 20 : 10 : 20
D 30 : 20 : 30 : 20
Which of the following is an alloy of cobalt?
A Vitallium
B Brass
C Invar
D Solder
When elements like nickel, chromium, copper and molybdenum are added to the molten cast iron, it produces
A White cast iron
B Nodular cast iron
C Malleable cast iron
D Alloy cast iron
Which of the following is not an alloy of nickel and chromium?
A Inconel
B Hastealloy
C Nimonic alloys
D Duralumin
In a world of many trading countries, the trade between two countries need not be balanced for the trade of each to be in global balance. Differing demands and productive capabilities among countries will cause a specific country to have trade deficits with some countries and surplus with other countries. Which of the following statements best summarizes the above?
A A country's trade will always be in balance even though it runs a deficit with a single country.
B A country's trade deficits and surpluses with other countries always balance out.
C A country's global trade balance is a sign of strength or weakness.
D A country's global trade balance is determined by relative demand and productive capabilities.
A special lottery is to be held to select the student who will live in the only deluxe room in a dormitory . There are 100 seniors, 150 juniors and 200 sophomres who applied. Each senior's junior's name , 2 times; and each sophomres who applied. Each senior's name is placed in the lottery 3 times; each junior's name ,2 times name, 2 times ; and each sphomore's name , 1 time . What is the probability that a senior's name will be chosen?
A 18
B 38
C 48 
D 28
In a class composed of x girls and y boys what part of the class is composed of girls ?
A y / ( x + y )
B x / xy
C x / ( x + y)
D y / xy
In a class composed of x girls and y boys what part of the class is composed of girls.
A y / (x +y)
B x / xy
C x / ( x +y)
D y/ xy

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