# OS Random Flash

## Quiz by Florenzo Miguel Aclan (Florencii)

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55 questions
• Q1
Find the volume generated by revolving the center x” + y” + 6x + 4y + 12 = 0 about the y-axis
22.58
59.22
55.28
65.55
30s
• Q2
[SEPT2022] For the remote operation, the circuit breaker must be equipped with a _____ trip.
Inverse time
Time Delay
Shunt
30s
• Q3
A garden hose fills a 32 L wastebasket in 120 seconds. The opening at the end of the hose has a radius of 1cm. How fast is the water traveling as it leaves the hose in m/s?
0.50
0.38
0.85
0.63
30s
• Q4
Which is not a distance relay?
Impedance Relay
Mho Relay
Reactance Relay
Over voltage Relay
30s
• Q5
The product of the sines of the angles of a triangle is maximum. What is the ratio of its sides?
1:1:1
1:1:3
1:2:2
1:2:1
30s
• Q6
What is the busiest bus on a computer?
System Bus
Control Bus
Data Bus
30s
• Q7
When impedance _____, current _____
decreases, decreases
increases, increases
increases, decreases
decreases, increases
30s
• Q8
When a metallic ball bearing is placed inside a cylindrical container of radius 2 cm, the height of the water inside the container increases by 0.6 cm. What is the radius of the ball bearing?
1.2 cm
0.6 cm
2.2 cm
1.8 cm
30s
• Q9
The per-phase impedance of a short transmission line is (0.3+ j0.4) Ω. The sending-end line-to-line voltage is 3300 V. and the load at the receiving end is 300 kilowatts per phase at 0.8 power factor lagging. Calculate the receiving-end voltage.
1628 V
1805 V
1768 V
1992 V
30s
• Q10
Law that provides the legal and institutional framework necessary for harmonizing policies on the development of renewable energy technologies.
RA 11371
RA 9513
RA 11285
RA 7832
30s
• Q11
In a wye connected system, the line current is
707 times the phase current
equal to the phase current
1.732 times the phase current
1.141 times the phase current
30s
• Q12
If log2 = a, log3 = b, log5 = c then log(7.5) = ________
c/(a + b)
c/ab
ab/c
b + c – a
30s
• Q13
Capacitors C1 and C2 are connected in series and a potential difference is applied to the combination. If the capacitor that is equivalent to the combination has the same potential difference, then the charge on the equivalent capacitor is the same as:
the product of the charges on C1 and C2
the sum of the charges on C1 and C2
the difference of the charges on C1 and C2
the charge on C1
30s
• Q14
It is known as the reversed Joule cycle.
Stirling cycle
Bell-Coleman
Rankine cycle
Carnot cycle
30s
• Q15
A generator delivers a load through a pair of wires, each of which has a resistance of 0.06 ohm. If the load voltage and power are 120V and 4.8KW respectively, what is the power loss in the line wires?
92W
98W
192W
96W
30s

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