NCATT
(See packet image) On the oscilloscope, if the time-base divisions are 50 usecs, what's the
frequency?
2 kHz
five kHz
10 kHz
50 kHz - ANS-5 Khz
(See Question 171 in packet) What will the ohmmeter examine inside the circuit? - ANS-Total
resistance (705.9 ohm)
(See Question 172 in packet) In the circuit there's a trouble with one of the resistors. What is the
hassle? - ANS-R3 is open
(See Question 173 in packet) In the circuit, does CR1 and CR2 behavior on the same time? -
ANS-No
(See Question 183 in packet) What sort of transistor is T1? - ANS-N-channel JFET
(See Question 184 in packet) What kind of transistor is T2? - ANS-P-channel JFET
(See Question 185 in packet) What type of transistor is T3? - ANS-N-channel Depletion-mode
MOSFET
(See Question 186 in packet) What type of transistor is T4? - ANS-P-channel Depletion-mode
MOSFET
(See Question 187 in packet) What kind of transistor is T5? - ANS-N-channel
Enhancement-mode MOSFET
(See Question 188 in packet) What sort of transistor is T6?N - ANS-P-channel
Enhancement-mode MOSFET
(See Question 195 in packet) If input A (Amplifier/Inverter) = excessive (1) and enter B (AND
gate) = (zero), what's going to output C (AND gate) be (low or high)? - ANS-Low
,(See Question 197 in packet) What do the blocks alongside the X-axis represent? - ANS-Time
(See Question 198 in packet) What is the RMS voltage and the peak-to-top voltage, if each
block represents 50v? - ANS-200V PK-PK x 70.7% = 141.4V RMS
(See Question 198, Fig. 1 in packet) What would reason the light no longer to illuminate?
R1 open
R3 shorted
R2 open
R4 shorted - ANS-R2 open
(See Question 2 hundred in packet) Which transistor is correct?
1
2 - ANS-1
(See Question 213 in the packet) In the J-K flip-flop, in which J=1, K=0, CLK=1, what does the
flip-flop do?
Set
Reset
No exchange
Toggle - ANS-Set
[8001] The running voltage of a capacitor in an AC circuit is:
Equal to Vcc
At least 50% greater than Vcc (carried out V)
Effective (RMS) voltage
Peak AC (or Peak-to Peak?) voltage - ANS-At least 50% more than Vcc (applied V)
,[8003] The foundation for transformer operation within the use of alternating cutting-edge is
known as what? - ANS-Mutual Inductance
[8004] The opposition provided by using a coil to the waft of alternating current is called (brush
aside resistance)? - ANS-Inductive reactance
[8007] In an AC circuit, the effective voltage is? - ANS-Less than the maximum immediately
voltage
[8011] When one of a kind rated capacitors are linked in parallel in a circuit, the full capacitances
is? - ANS-Equal to the sum of all of the capacitors
(Ct= C1+C2+C3...+Cn)
[8012] When inductors are linked in collection in a circuit the total inductance is? (Where the
magnetic fields of each inductor do no longer have an effect on the others) - ANS-Equal to the
sum of the man or woman inductors
(Lt=L1+L2=L3...+Ln)
[8013] When extra than two inductors of different inductances are connected in parallel in a
circuit, the overall inductance is? - ANS-Less than the inductance of the rated inductor
(1/Lt=1/L1+1/L2+1/L3...+Ln)
[8015] Which calls for the most electric power for the duration of operation?
A 12 volt motor requiring eight amps
Four 30 watt lamps in a 12 volt parallel circuit
Two lighting fixtures requiring three amps every in a 24v parallel machine - ANS-Two lighting
fixtures requiring 3 amps each in a 24v parallel machine
[8018] How many amps will a 28v generator be required to supply to a circuit containing 5 lamps
in parallel, 3 of which have a resistance of 6 ohms every and a pair of of that have a resistance
of 5 ohms each? - ANS-25.23 amps (approximately)
[8021] A 24v supply is needed to grant 48w to a parallel circuit consisting of 4 resistors of equal
value. What is the voltage drop across every resistor? - ANS-24v
[8026] (See fig. 7 in packet) If resistor R3 is disconnected at point D (ruin no longer drawn),
what is going to the ohmmeter read? - ANS-Infinite resistance
, [8027] (See fig. Eight in packet) With an ohmmeter related into the circuit as shown, what will
the ohmmeter study? - ANS-10 ohms
[8043] A circuit has an carried out voltage of 30v and a load along with a 10ohm resistor in
collection with a 20 ohm resistor. What is the voltage drop across the ten ohm resistor? -
ANS-10v
[8048] What occurs to the cutting-edge in a voltage step-up transformer with a ratio of 1 to four?
- ANS-The cutting-edge is stepped down by using a ratio of one to four
[8058] (See fig. 15 in packet) The #7 cord is used to.... - ANS-Close the PUSH-TO-TEST circuit
[8059] (See fig. 15 in packet) When the landing tools is down, the green mild will no longer
come on if an open takes place in which wire? - ANS-#6
[8074] (See fig. 21 in packet) Which image represents a variable resistor? - ANS-2
[8145] (See fig. 39 in packet) Determine the cable length of a 40ft period of unmarried cable in
unfastened air, with a non-stop rating, walking from a bus to the system in a 28v gadget with a
fifteen amp load and a 1v drop. - ANS-#10 twine
[8362] Which of the following are suitable to use in cleaning anodized surfaces? -
ANS-Aluminum wool, fiber bristle brush
[8837] How can it's decided if a transformer winding has some it its turn shorted collectively? -
ANS-The transformer will get warm in normal operations
[App. A, Fig. 1] In the astable multivibrator, transferring the arm of R6 to the proper will (R6
resistance is going down, reducing R8C4 time steady.)
Decrease Q1 cutoff time
Decrease Q2 cutoff time
Decrease discharge time of C3
Increase discharge time of C4 - ANS-Decrease Q1 cutoff time
[App. A, Fig. 1] Increasing the resistance of R5 will purpose the astable multivibrator output PRT
to _______ and the PRF to _______. (Both RC time constants growth)
Increase; boom
Increase; decrease
(See packet image) On the oscilloscope, if the time-base divisions are 50 usecs, what's the
frequency?
2 kHz
five kHz
10 kHz
50 kHz - ANS-5 Khz
(See Question 171 in packet) What will the ohmmeter examine inside the circuit? - ANS-Total
resistance (705.9 ohm)
(See Question 172 in packet) In the circuit there's a trouble with one of the resistors. What is the
hassle? - ANS-R3 is open
(See Question 173 in packet) In the circuit, does CR1 and CR2 behavior on the same time? -
ANS-No
(See Question 183 in packet) What sort of transistor is T1? - ANS-N-channel JFET
(See Question 184 in packet) What kind of transistor is T2? - ANS-P-channel JFET
(See Question 185 in packet) What type of transistor is T3? - ANS-N-channel Depletion-mode
MOSFET
(See Question 186 in packet) What type of transistor is T4? - ANS-P-channel Depletion-mode
MOSFET
(See Question 187 in packet) What kind of transistor is T5? - ANS-N-channel
Enhancement-mode MOSFET
(See Question 188 in packet) What sort of transistor is T6?N - ANS-P-channel
Enhancement-mode MOSFET
(See Question 195 in packet) If input A (Amplifier/Inverter) = excessive (1) and enter B (AND
gate) = (zero), what's going to output C (AND gate) be (low or high)? - ANS-Low
,(See Question 197 in packet) What do the blocks alongside the X-axis represent? - ANS-Time
(See Question 198 in packet) What is the RMS voltage and the peak-to-top voltage, if each
block represents 50v? - ANS-200V PK-PK x 70.7% = 141.4V RMS
(See Question 198, Fig. 1 in packet) What would reason the light no longer to illuminate?
R1 open
R3 shorted
R2 open
R4 shorted - ANS-R2 open
(See Question 2 hundred in packet) Which transistor is correct?
1
2 - ANS-1
(See Question 213 in the packet) In the J-K flip-flop, in which J=1, K=0, CLK=1, what does the
flip-flop do?
Set
Reset
No exchange
Toggle - ANS-Set
[8001] The running voltage of a capacitor in an AC circuit is:
Equal to Vcc
At least 50% greater than Vcc (carried out V)
Effective (RMS) voltage
Peak AC (or Peak-to Peak?) voltage - ANS-At least 50% more than Vcc (applied V)
,[8003] The foundation for transformer operation within the use of alternating cutting-edge is
known as what? - ANS-Mutual Inductance
[8004] The opposition provided by using a coil to the waft of alternating current is called (brush
aside resistance)? - ANS-Inductive reactance
[8007] In an AC circuit, the effective voltage is? - ANS-Less than the maximum immediately
voltage
[8011] When one of a kind rated capacitors are linked in parallel in a circuit, the full capacitances
is? - ANS-Equal to the sum of all of the capacitors
(Ct= C1+C2+C3...+Cn)
[8012] When inductors are linked in collection in a circuit the total inductance is? (Where the
magnetic fields of each inductor do no longer have an effect on the others) - ANS-Equal to the
sum of the man or woman inductors
(Lt=L1+L2=L3...+Ln)
[8013] When extra than two inductors of different inductances are connected in parallel in a
circuit, the overall inductance is? - ANS-Less than the inductance of the rated inductor
(1/Lt=1/L1+1/L2+1/L3...+Ln)
[8015] Which calls for the most electric power for the duration of operation?
A 12 volt motor requiring eight amps
Four 30 watt lamps in a 12 volt parallel circuit
Two lighting fixtures requiring three amps every in a 24v parallel machine - ANS-Two lighting
fixtures requiring 3 amps each in a 24v parallel machine
[8018] How many amps will a 28v generator be required to supply to a circuit containing 5 lamps
in parallel, 3 of which have a resistance of 6 ohms every and a pair of of that have a resistance
of 5 ohms each? - ANS-25.23 amps (approximately)
[8021] A 24v supply is needed to grant 48w to a parallel circuit consisting of 4 resistors of equal
value. What is the voltage drop across every resistor? - ANS-24v
[8026] (See fig. 7 in packet) If resistor R3 is disconnected at point D (ruin no longer drawn),
what is going to the ohmmeter read? - ANS-Infinite resistance
, [8027] (See fig. Eight in packet) With an ohmmeter related into the circuit as shown, what will
the ohmmeter study? - ANS-10 ohms
[8043] A circuit has an carried out voltage of 30v and a load along with a 10ohm resistor in
collection with a 20 ohm resistor. What is the voltage drop across the ten ohm resistor? -
ANS-10v
[8048] What occurs to the cutting-edge in a voltage step-up transformer with a ratio of 1 to four?
- ANS-The cutting-edge is stepped down by using a ratio of one to four
[8058] (See fig. 15 in packet) The #7 cord is used to.... - ANS-Close the PUSH-TO-TEST circuit
[8059] (See fig. 15 in packet) When the landing tools is down, the green mild will no longer
come on if an open takes place in which wire? - ANS-#6
[8074] (See fig. 21 in packet) Which image represents a variable resistor? - ANS-2
[8145] (See fig. 39 in packet) Determine the cable length of a 40ft period of unmarried cable in
unfastened air, with a non-stop rating, walking from a bus to the system in a 28v gadget with a
fifteen amp load and a 1v drop. - ANS-#10 twine
[8362] Which of the following are suitable to use in cleaning anodized surfaces? -
ANS-Aluminum wool, fiber bristle brush
[8837] How can it's decided if a transformer winding has some it its turn shorted collectively? -
ANS-The transformer will get warm in normal operations
[App. A, Fig. 1] In the astable multivibrator, transferring the arm of R6 to the proper will (R6
resistance is going down, reducing R8C4 time steady.)
Decrease Q1 cutoff time
Decrease Q2 cutoff time
Decrease discharge time of C3
Increase discharge time of C4 - ANS-Decrease Q1 cutoff time
[App. A, Fig. 1] Increasing the resistance of R5 will purpose the astable multivibrator output PRT
to _______ and the PRF to _______. (Both RC time constants growth)
Increase; boom
Increase; decrease
