Related Questions

The material most commonly used for shielding is
A Carbon
B Lead
C Concrete
D All of these
The commonly used material for shielding or screening magnetism is
A copper
B aluminium
C soft iron
D brass
What is the type of shielding gas for GTAW (Gas Tungsten Arc Welding) used for carbon steels only called?
A Argon H2
B Argon CO2
C Argon Helium
D Helium
(i)Participation involves more than the formal sharing of decisions. (ii)through anticipation , individuals . or organizations consider trends and make plans , shielding institutions from trauma of learning by shock. (iii) Innovative learning involves both anticipation and participation . (iv) It is an attitude characterized by cooperation. dialogue and empathy.
A (ii) + (iii) + (i) + (iv)
B (i) + (ii) + (iv) + (iii)
C (iv) + (i) + (iii) + (ii)
D (iii) + (ii) + (i) + (iv)
The main interest of shielding in nuclear reactor is protection against
A X-rays
B Infrared rays
C Neutrons and gamma rays
D Electrons
The thickness of metallic shielding on cables is usually
A 0.04 mm
B 0.2 to 0.4 mm
C 3 to 5 mm
D 40 to 60 mm
The instruction state that Sumi may need 4/9 square yards of one type of material and 2/3 square yards of another type of material for a project. She buys exactly that amount. After finishing the project, however, she has 8/18 square yards left that she did not use. What is the total amount of square yards of material Sumi used?
A 1/12
B 1/9
C 2/3
D 10/9
An orthotropic material is a special class of anisotropic material, which is described by their properties in three perpendicular directions. An example of orthotropic material is
A Stainless steel
B Cast iron
C Wood
D Teflon
The most commonly used semiconductor material is
A Silicon
B Germanium
C Mixture of silicon and germanium
D None of the above
The material commonly used for machine tool bodies is
A Mild steel
B Aluminium
C Brass
D Cast iron

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