Q1. The sub cooling in a refrigerator cycle
(A) does not alter C.O.P
(B) increases C.O.P
(C) decreases C.O.P
(D) none of the above

Q2. Power factor of a purely resistive circuit is:
(A) zero
(B) one
(C) 0.5
(D) infinity

Q3. When a body hits an obstacle, the force with which it hits the obstacle depends upon its
(A) average velocity
(B) velocity at the instant of collision
(C) Initial velocity
(D) all of these

Q4. Whenever a source of sound moves towards an observer
(A) the frequency heard by the observer is less than that of the source
(B) the frequency heard by the observer is greater than that of the source
(C) the frequency heard by the observer is unchanged
(D) the wavelength of sound heard is greater than that of the sound emitted

Q5. Moving electric charges will interact with
(A) electric field only
(B) magnetic field only
(C) both of these
(D) none of these

Q6. What is the frequency limit of copper wire?
(A) approximately 0.25 MHz
(B) approximately 1.0 MHz
(C) approximately 400 GHz
(D) None of the above

Q7. When bias applied to a vari-cap diode is increased, its capacitance
(A) increases
(B) decreases
(C) remains same
(D) doubles

Q8. Voltage induced in a loop of wire rotating in a strong and steady magnetic field is
(A) dc
(B) ac
(C) both
(D) none of these

Q9. Permeance related to Reluctance as?
(A) Equally
(B) Reciprocally
(C) both
(D) none of these

Q10. Ideal transformers cannot be characterised by
(A) h parameters
(B) G parameters
(C) z parameters
(D) none of these

Q11. An inverter converts?
(A) AC into DC
(B) DC into AC
(C) Fixed AC to variable AC
(D) None of these

Q12. The data type defined by user is
(A) Built-in data type
(B) Abstract data type
(C) Homogenous data type
(D) Real data type

Q13. if our eye is a camera then it is considered as how many mega pixel
(A) 286
(B) 692
(C) 576
(D) 476

Q14. Narrow pulse systems require
(A) zero bandwith
(B) smaller bandwidth
(C) greater bandwidth
(D) none of these

Q15. Light is best described as a form of
(A) Work
(B) Enegy
(C) Waves
(D) Force

Q16. A scr is a ...... Switch
(A) two directional
(B) three directional
(C) unidirectional
(D) four directional

Q17. Siemens is the unit of
(A) conductance
(B) relectance
(C) impedance
(D) contactance

Q18. charging current in transmission line
(A) increases the line losses
(B) decreases the line losses
(C) does not effect the line losses
(D) none of these

Q19. transformer connection at the sending end of a transmission line is usually
(A) star delta
(B) delta delta
(C) delta star
(D) star star

Q20. the outer most shell of carbon has
(A) 1 electron
(B) 2 electron
(C) 3 electron
(D) 4 electrons

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