Chetana S
This is Chetana, owner of the World's Biggest Job Group "CHETANA-JOBS". 
By Chetana S
Published on 13/01/2011
Test/Interview Location: UNKNOWN
Date of Test/Interview: 2010
Category: FRESHERS (Electrical)

Hi Chetanaites
IAF (Indian Air Force) EKT consist of two objective sections :
(1) General Engineering
(2) Speciliazation

I am an Electrical major. here are some of the questions :

General Engineering :

1) Darlington pair consists of the following two stages _______ and ______

2) The ratio of length of the drawing of the object to the actual length of the object is called
a)resulting fraction b) representative figure c) representative fraction d) result

3) Piezometer is used to measure ______

4) Hydrometer is used to measure ______

5) OTTO cycle works on ______
a) constant P ,Q ,T.....

6) Value of wavelength for maximum emmisive power given by ______ law
7) ASCII code is a 7 bit code for
a)numbers b)letters c)symbols d)all

8) Microcomputer register is ______
a)address b)memory location c)register d) chip

9) Outer part of thread is a) crest b) root c) flank d) depth

10) One of the three states of steam
a) water steam b) super heated c) dangerous d)volatile

11) Modern nuclear power plant works on the principle of
a) nuclear fusion b) nuclear fission c) nuclear absorption

12) In gas turbines, high thermal efficiency is obtained in
a) open cycle b) closed cycle c) in both

13) Most of the voice energy is concentrated in the vicinity of
a) 100 hz - 1 khz b) 100 hz -3 khz c) 100 hz - 5 khz

Electrical Questions :

1) In Induction motor  if load increseses then power factor _____

2) In DC generator polarity of interpole is________

3) Supply of DC shunt motor are reversed, what will be the effect on motor____

4) Direction of rotation of shunt generator can be reversed by interchanging
a) supply terminals b) polarity of field winding c) polarity of armature and field winding d) any of the above

5) Laplace transform of the unit step function u (t-a) _______

6) conjugate of (-a+ j b) is

7) differentiator are not used in system because______
8) Thermal runaway is associated with ______

9) Negative feed back in an amplifier results in ____ gain and ____ band width

10) A capacitor start capapcitor run 1 phase induction motor is basically _____ motor

11) High pass filter can act as
a) integrator b) differentiator c) a & b
12) what class of amplifier has least distortion

13) Saw tooth voltage in CRO is produced in
a) sweep generator b ) colpitt oscillator c )...... d)....

Author : Mohammed Idris

(Paper Submitted By : Priya)