Wapda Junior Engineer Test PTS 2022 (Electronics) was conducted on 22th May, 2022, for the post of Junior Engineer BPS-17 in different cities of Pakistan. This test was conducted by Pakistan Testing Service. As Pakistan Testing Service (PTS) is conducting recruitment processes for last many years.
Wapda Junior Engineer Test PTS 2022 (Electronics)
01 . My girlfriend Anum lives in ___ house. (That)
02. He usually_____before going to school. (Eats)
03 . Antonym of Adamant (flexible)
04 . I have both Respect___……….(and)
05 . If you continue this Truculent attitude you ____supports .(Alienate)
Prepare Also:
06 . 2nd minesalt in the world.(khewra)
07. Pakistan name in the 1956 (Islamic republic of Pakistan)
08 . Harappa located in district (Sahiwal)
09 . Highest peak in the Kohhind kush (Trinchmir)
10 . Gaddani is located in (Balochistan)
11 . Matter found in states (liquid, solid and gas)
12 . In case of conductors, free electrons are completely filled in____band (conduction)
13 . Low pass filter allows (low frequency)
14 . In transistor, the arrow is on the (emitter)
15 . Accept or and donor in semi conductor are(p-type and n-type)
16 . Alternating Voltage is example of (analog)
17 . In optical communication, the carrier is (electro magnetic waves in optical frequency)
18 . Rectangular voltage is an example of (digital)
19 . Optical detector (PIN photodiode)
20 . Voltage influence current only if the circuit is (closed)
21 . Voltmeter used across (parallel)
22 . Silicon and germanium are (tetravalent)
23 . The device which is used as fast counters in Electronics is (photodiode)
24 . 14-j5 is in (4thquadrant)
25 . Non-inverting amplifier has (low input impedance)
26 . Depletion region in PN semiconductor consists of (mobile donor and acceptor ions)
27 . Message travel through transmitter to reciever (channel)
28 . Diodes used in lamps (LED)
29 . Thermions are (electrons)
30 . Depletion region in pn semiconductor is due to(doping)
31 . Maximum current flow in BJT in(emitter)
32 . The decrease the interference the signal should be(modulated)
33 . Band width of FM is____than AM. (More)
34 . When the frequency of the voltage applied to a series RC circuit is increased, the phase angle (decrease)
36 . In a series RC circuit, when the frequency and the resistance are halved, the impedance (can’t determine)
37. The voltages in Problem 4 are measured at a certain frequency. To make the capacitor voltage greater than the resistor voltage, the frequency
A. must be in creased
B. must be decreased
C. is held constant
D. has no effect
Answer:Option B (copied from in diabix)
38 . ICBO is (increase with temperature)
39 . Frequency range from 1 GHz to 30 GHz (microwave)
40 . In practical applications, battery voltage (lowered as load increase)
41 . Micro wave communication used in (telephone)
42 . AC – DC conversion (Rectification)
43 . Video signals in TV (AM)
44 . Discrete signal are (sequence of pulses?)
45 . Carrier signal has constant…….(amplitude, frequency???)
46 . High energy gap in (insulators)
47 . Depletion region of a junction is formed (during the manufacturing)
48 . Sound signals in TV (FM)
49 . The removal of a non – neutral sub atomic particle converts the atom into a (charged ion)
50 . In FM, amplitude (remains constant)
51 . FM signal is less affected by (noise)
52 . Negative and positive (electron sand proton)
53 . Temperature sensitive (thermistor)
54 . Operation of tran sistor requires (to heat base, emitter collector .Ansis none)
55 . DC – AC Device (In verter)
56 . When an atom lose/ gain electron sit be comes (ionized)
57 . Sudden increase in the to tal current into a parallel circuit may in dicate (increase in source Voltage)
58 . Primary batteries, unlike secondary batteries, may be (used once)
59 . The process of adding impurities tose miconductors is called (doping)
60 . No charge in (neu trons)
61 . The atomic number of a nelement is deter mined by(noof protons)
62 . Minority carriers inpn semiconductor (holesinn – type and free electrons inp – type)
63 . In full wave rectification the out put DC voltage a cross the load is obtained (complete cycle of AC)
64 . 4 +j3 (1st quadrant)
65 . Current is (columb/ time)
66 . Electrons inp – type are (minority carriers)
67 . Analog signals varies (intime continuously)
68 . Emitter in pn semiconductor is he a vily do pedso (base current is small/ high,_???)
69 . Which in not do nor (Aluminum)
70 . Bonding in semiconducto r(covalent)
71 . To implement various logic circuits in the electronics the devices used are called (logic gates)
72. Barrier potential of Silicon (0. 7v)
73 . High pass filter passes (high frequency)
74 . If the current in circuitis 0A, the circuit is likely tobe (open)
75 . Holes are like(positive charge)
76 . Rectification is obtained by (passing AC signal to diode)
77. Strong electric filed a cross pnjunction to cause break down of covalen tbond (avalanche break down)
78 . Op – Amp have (high gain)
79 . One columb is passed in one second(one Ampere)
80 . Current flow in pn semiconductor due to (majority carriers)
81 . In half waved cout put is obtained from load for (positive or negative half cycle)
82 . Holes from p – type to fill electons inn – type called (diffusion?)
83 . In BJ To peration (BE for ward,CB reverse)
84 . Neutral semiconductor have(equal positive and negative)
85 . Example of potential energy (battery)
86 . Modulating singal has (low frequency)
87 . Working of transistor as amplifier is like (step up transformer?)
88 . The velocity of an oscillating charge as it moves to and froa long a wire is always (changing)
89 . Question related to zener breakdown
90 . Which of the following is not property of semiconductor (the ydon’t emitlight??)
91. Which of the following para meter describes the best movement of the electrons in side a semiconductor ? (mobility)
92. Which of the following para meter describes the best movement of the electrons in side a semiconductor ? (Doublestub)
93 . FS Kuse in (tele graphy)
94 . Radio (FM, AM or both??)
95. rat eat which in formation canbe carried through a communication channel depends (band width)
96 . In radio, PRF stands for (puls erepetition frequency)
97 . Which of the following is not physically present in semiconductor (temperature)
98 . Which of the following is the in direct way of generating FM? (Arm strong modulator)
99 . Which of the following is not true a bout solar cell (they prode dark current?)
100 . In color TV, varactor diode is used for (tuning)
