Engineering Physics Multiple Choice Questions (MCQ)
1-At …………… °C, the temperature on the Celsius and Fahrenheit scales are equal.
(A) 40
(B) 100
(C) – 40
(D) 212
2-The British thermal unit (Btu) is a unit of following physical quantity.
(A) Heat
(B) Temperature
(C) Calorie
(D) Heat capacity
3-The area under the graph of pressure versus volume for a thermodynamic system represents …………..
(A) Internal energy of the system
(B) Temperature of the system
(C) Entropy of the system
(D) Work done by/on the system
4-When germanium crystal is doped with phosphorus atoms, it becomes ……………
(A) an insulator
(B) alloy
(C) N – type semiconductor
(D) P – type semiconductor
5-There is no hole current in good conductors because they ……………
(A) Are full of electron gas
(B) Have large forbidden energy gap
(C) Have no valance band
(D) Have overlapping valance and conduction band
6-A transducer is any device which ……………
(A) Is used in electronic instruments
(B) Is self-generating
(C) Converts energy in one form to another
(D) Only detects and senses the presence of a physical quantity
7-The SI unit of electric field intensity is ……………
(A) N C-1
(B) V m-1
(C) Wb m-1
(D) Option (A) and (B)
8-Galvanisation is a method of protecting steel and iron from rusting by coating them with a him layer of
(A) Tin
(B) Chromium
(C) Zinc
(D) Manganese alloy
9-One Tesla = …………….. Gauss.
(A) 10-4
(B) 10-8
(C) 104
(D) 106
10-Lenz’s law is statement of …………….
(A) Law of conservation of charge
(B) Law of conservation of current
(C) Law of conservation of energy
(D) Law of conservation of momentum
11-…………… is a device which works on the principle of electromagnetic induction.
(A) Transistor
(B) Transformer
(C) Rectifier
(D) An engine
12-An atom as a whole is always …………… electrically.
(A) Positive
(B) Negative
(C) Neutral
(D) Nothing could be said
ANSWERS:
1-(C), 2-(A), 3-(D), 4-(C), 5-(D), 6-(C), 7-(C), 8-(C), 9-(C), 10-(C), 11-(B), 12-(C)