How To Prepare For HPCL Exam

Hey I want to prepare for the Hindustan Petroleum Corporation Limited, India HPCL – Electrical & Electronics Engineering exam so can you please tell me that how to prepare well for the exam?

Hi below I have given you the preparation tips to prepare well for the HPCL exam so you can have a look


You have to plan a well structured schedule for the preparations.

You should make a clear idea about the syllabus of the examination

Part the whole syllabus into small sections depending on level of difficulty in each.

Your schedule must be in such a way that the syllabus should be covered according to the proposed time.

You can refer books on aptitude that are available in the market.

Below I have given you the paper so you can have an idea for the preparation

HPCL Electrical & Electronics Engineering exam Paper

Complete the following statement:

1. Space charge region around a p – n junction
a. Contains one type of mobile carriers depending on the level of doping of the p or n regions
b. Does not contain mobile barriers
c. Contains electrons only as free carriers
d. Contains both free electrons and holes

2. What will be the consequences, if you remove the bypass capacitor across the emitter – leg resistor in a CE amplifier?
a. Decrease in voltage gain
b. Increase in current gain
c. Increase in voltage gain
d. Decrease in current gain

4. On what does the frequency of the ripple in the output voltage of a 3 – phase semi - converter depends upon?
a. Firing angle and supply frequency
b. Firing angle and load resistance
c. Only on load circuit parameters
d. Firing angle and load inductance

5. Which oscillator comprises of the highly stable resonance characteristic?
a. Colpitts
b. Hartley
c. Weinbridge
d. Crystal

6. ISDN handles data pertaining to
a. Computer data only
b. All digital services
c. Speech only
d. Speech and video

7. Which converter can operate in both 3 and 6 pulse modes?
a. 3 phase full converter
b. 1 phase full converter
c. 3 phase half wave converter
d. 3 phase semi – converter

8. When do you use analog data acquisition system?
a. Narrow bandwidth and high accuracy are required
b. Wide bandwidth and low accuracy are required/sufficient
c. Wide bandwidth and high accuracy are required
d. Narrow bandwidth and low accuracy are required/ sufficient

9. With which of the option can you carry out the measurement of frequency?
a. Wien’s bridge
b. Owen’s bridge
c. Schering’s bridge
d. Maxwell’s inductance – capacitance bridge

10. What will be the minimum number of line currents when the total number of branches in a network is = b and the graph of the network has ‘n’ number of branches?
a. b – n
b. n
c. b
d. b + n

11. The equation of continuity defines the relation between:
a. flux density and charge density
b. electric field and magnetic field
c. current density and charge density
d. electric field and charge density

12. The E and H vector fields in a travelling electromagnetic wave are:
a. Parallel in space
b. Perpendicular in space
c. H is in the direction of wave travel
d. E is in the direction of wave travel

13. What will be the dominant cut off wavelength if for a rectangular wave guide 2.5cm * 1.2cm?
a. 2.4 cm
b. 5 cm
c. 3.7 cm
d. 2.5 cm

14. The device used for providing rate feedback in position control systems is called:
a. Synchro
b. Servomotor
c. Potentiometer
d. Tachogenerator

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Answered By StudyChaCha Member