Following are some MCQs from the test of WAPDA JUNIOR ENGINEER TEST PAPER (ELECTRONICS), that was held on 13 11 2016 and was compiled by Engr. Zaid Ali. You can practice and learn most important MCQs for electrical tests preparation from Here.
You can access and Download Past Papers of Electrical & Electronics, held by NTS, PTS, CTS and ETEA for recruitment in wapda, NTDC, DISCOs, KRL, NESCOM and Atomic Engergy from Here.
We are providing you a list of leading and Top Consultants in Saudi Arabia with their official websites and apply links. If you want to get a job in KSA consultancy firms with high salaries then you are at the right place. Visit the apply links and see the available positions there. Interested to work with top and leading contractors? Here is the list.
You can support us and subscribe our youtube channel Here. So we can continuously provide you latest information.
WAPDA JUNIOR ENGINEER TEST PAPER (ELECTRONICS) MCQs
General Questions (10)
- A statement about Allama Iqbal was given by (Quaid e Azam)
- Most cultivating crop of Pakistan is (Rice, Wheat , Cotton, Sugarcane)
- OPEC (Oil producing countries)
- Largest earth filled dam (Tarbela)
- 1st Completely revealed surah of Quran (Alaq , Ikhlas , Rehman , Nasr)
- Literal meaning of hermain (Makkah & Madina)
- 6th Kalma name (Radde Kufr)
- Fill in the blank (to)
- ALWAYS : NEVER :: (often : rarely)
- MASSIVE antonym (Tiny)
Technical Questions (90)
1) What is used for the protection of large alternator?
A. Thermal relay
B. Overcurrent relay
C. None
2) The equivalent of binary number 0.0111 in decimal is (0.4375)
3) Which of the following is the best regard to the inverter device
A. BJT GTO
B. BJT, MCT
C. BJT GTO MCT
D. MCT GTO
4) Surge impedance of long transmission line.
A. 50
B. 75
C. 400
D. 800
5) Which of the following is not a basic element of a transformer?
A. core
B. primary winding
C. secondary winding
D. mutual flux
6) In an ideal transformer,
A. windings have no resistance
B. core has no losses
C. core has infinite permeability
D. all of the above
7). In relation to a transformer, the ratio 20 : 1 indicates tha
A. there are 20 turns on primary one turn on secondary
B. secondary voltage is 1/20th of primary voltage
C. primary current is 20 times greater than the secondary current.
D. for every 20 turns on primary, there is one turn on secondary
8) Transformers are rated in kVA instead of kW because
A. load power factor is often not known
B. kVA is fixed whereas kW depends on load p.f.
C. total transformer loss depends on volt-ampere
D. it has become customary.
9) Decimal Equivalent of 1111 (15)
10. Decimal Equivalent of 1010 (10)
11. 1’s complement of 0100 (1011)
12. A device that converts decimal to binary (Encoder)
13. A device that converts binary to decimal (Decoder)
14. Power plants using coal work closely on known which of the following cycle?
A. Otto cycle
B. Binary vapor cycle
C. Brayton cycle
D. Rankine cycle
15. Super-heated steam is always
A. at a temperature higher than the saturation temperature corresponding to a steam pressure
B. at a pressure more than the boiler steam pressure
C. separated from water particles before being supplied to turbine
D. at a pressure less than the maximum cycle pressure.
16. Steam engine used in locomotive is
A. single acting, condensing type
B. Single acting, non-condensing type
C. double acting, non-condensing type
D. double acting, condensing type.
17. Coking is
A. formation of lumps or masses of coke in boiler furnaces at high temperatures
B. heating of coal in absence of air, driving out CO2 and leaving behind the residue and carbon
C. burning of coal in furnace
D. producing lumps of coal from fine powders with the help of a binder.
18. The output of a solar cell is of the order of
A. 0.1 W
B. 0.5 W
C. 1 W
D. 5 W.
19. Deuterium oxide is used in nuclear reactors as
A. fuel
B. moderator
C. shield
D. regulator
20. As compared to steam at entry to the turbine, which of the following will be larger at exit?
A. Pressure
B. Flow rate
C. Specific volume
D. Specific enthalpy.
21. Skin effect is proportional to
A. diameter of conductor
B. (diameter of conductor)1/2
C. (diameter of conductor )2
D. (diameter of conductor )2.
22. Total load transmitted through a 3 phase transmission line is 10,000 kW at 0.8 power factor lagging. The I2R losses are 900 kW. The efficiency of transmission line is
A. 60%
B. 90%
C. 95%
D. 99%.
23. Shunt capacitance is usually neglected in the analysis of
A. Short transmission lines
B. Medium transmission lines
C. Long transmission lines
D. Medium as well as long transmission lines.
24. The characteristic impedance of a transmission line depends upon
A. shape of the conductor
B. surface treatment of the conductors
C. conductivity of the material
D. geometrical configuration of the conductors.
All our Posts on Website
- Control System (4)
- Research Work (4)
- Courses (4)
- Extra High Voltage EHV Substation Design (6)
- Fellowships (2)
- Information for Engineers (17)
- BSP Projects (4)
- HVDC Projects (1)
- OHTL Projects (5)
- SEC Projects (8)
- Al Gihaz (2)
- AL-OJAIMI (1)
- Alsharif Group (1)
- SSEM (2)
- Interview Preparation (9)
- Jobs (13)
- Electrical Jobs (7)
- Jobs in KSA (10)
- MATLAB and Simulink (1)
- MCQs (10)
- Electrical MCQs (10)
- Basic Electrical (7)
- Control System MCQs (2)
- Microwaves MCQs (1)
- Electronics MCQs (8)
- Electrical MCQs (10)
- Microsoft Excel (1)
- Past Papers (7)
- electrical (7)
- NTS Past Papers (1)
- Scholarships (3)
- Scholarships in Pakistan (1)
- Transmission lines design (6)
- Uncategorized (17)
- Web Development (1)