Electrical Engineering Materials — Part 2 MCQs with Explanations

Manganin is the correct answer to “The coils of D.C. motor starter are wound with wire of”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

All of the above is the correct answer to “Due to which of the following factors the brush wear rate is altered”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

Composition is the correct answer to “Which of the following affect greatly the resistivity of electrical conductors”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

All of the above reasons is the correct answer to “Carbon resistors are used extensively because they are”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

Greater than is the correct answer to “The current due to electron flow in conduction band is the hole current in valence band.”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

Gold is the correct answer to “The metal having the lowest temperature coefficient of resistance is”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

Infinite conductivity is the correct answer to “A perfect conductor has”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

Metal is the correct answer to “For a particular material the Hall coefficient was found to be zero. The material is”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

7 is the correct answer to “Total number of crystal systems is”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

Vander Waals and covalent is the correct answer to “In graphite, bonding is”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

Softness is the correct answer to “The converse of hardness is known as”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

Increase is the correct answer to “The value of critical field below the transition temperature will”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

Rubber is the correct answer to “Is viscoelastic.”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

All of the above is the correct answer to “Which of the following factors affect resistivity of metals”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

Increases is the correct answer to “By increasing impurity content in the metal alloy the residual resistivity always”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

All of the above is the correct answer to “Carbon bearings are used under which of the following conditions”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

Holes can exist in any material including conductors is the correct answer to “For a hole which of the following statements is incorrect”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

Superconductors is the correct answer to “Substances whose specific resistance abruptly decreases at very low temperature are called”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

Reduce the energy gap is the correct answer to “The impurity atoms is semiconductors”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

Frequency is the correct answer to “The photo-electric effect occurs only when the incident light has more than a certain critical”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

Both A and B is the correct answer to “Carbon rods are used in wet and dry cells because”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

The crystal structure having no atomic vibration at 0°K is the correct answer to “The superconductivity is due to”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

steel is the correct answer to “Overhead telephone wires are made of”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

Ferric oxide is the correct answer to “_________ is most commonly used for making magnetic recording tape”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

High resistivity is the correct answer to “A good electric contact material should have all of the following properties except”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

Produce harmonic distortion is the correct answer to “Non-linear resistors”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

Sharing of electrons between atoms is the correct answer to “The covalent bond is formed by”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

2n2 is the correct answer to “The formula __________ determines the number of electrons that can be accommodated in any level.”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

GLS lamps is the correct answer to “Carbon electrodes are not used in”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

Zero is the correct answer to “At transition temperature the value of critical field is”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

Tin and lead is the correct answer to “Solder is an alloy of”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

Finely divided carbon black. is the correct answer to “A carbon resistor contains”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

Silica is the correct answer to “Which of the following material is not a semiconductor”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

Steel reinforced aluminium is the correct answer to “Which of the following materials is preferred for transmitting electrical energy over long distance”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

Large is the correct answer to “The forbidden gap in an insulator is”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

All of the above is the correct answer to “Platinum is used in”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

The stiffness of the bonds it makes with neighbors is the correct answer to “In a crystal, an atom vibrates at a frequency determined by”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

All of the above is the correct answer to “Due to which of the following reasons copper and aluminium are not used for heating elements”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

Temperature is the correct answer to “Thermocouples are mainly used for the measurement of”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.

Kanthal is the correct answer to “Which of the following high resistance materials has the highest operating temperature”. This question is standard in competitive examination syllabi for Electrical Engineering Materials.