FREE Ramsay Electrical Question and Answers
A 50 Hz AC voltage is applied to a full-wave rectifier. What is the output voltage's frequency?
The transformer receives an AC input voltage, and the rectified output is also displayed. Rectification, as can be seen, is the process of flipping the input's negative cycle to its positive side. 100 is the right answer since a full-output wave's frequency is twice as high as its input frequency.
What does the hexadecimal number 0xA2 represent in binary?
Hexadecimal numbers have a base of 16 digits, ranging from 0 to 9, followed by letters A through F. Any number preceded by "0x" is a hexadecimal number, while any number followed by "b" is a binary number. Four binary bits are used to represent each hexadecimal number. The resultant binary of the provided integer will have 8 binary bits because there are 2 hexadecimal numbers.
Which tap has fewer threads in the chamfer area of the tap?
Threads are made in a workpiece using taps. The three primary tap kinds are the bottoming tap, plus tap, and taper tap, as depicted in the image below. The number of threads in the chamfer region, as depicted, is the primary distinction between these varieties. The taper tap is typically used at the start of the threading process and has the fewest teeth. The plug tap is used to fix a threaded hole and has more teeth than the taper tap. While the bottoming tap, which is typically used to tap the hole's bottom, has a fairly even distribution of teeth along its length. The final tap to be utilized in the tapping procedure is the bottoming tap. Since the chamfered edge of a taper tap has the fewest teeth,
Which of the following is TRUE about this program?
The electric motor is started and stopped by this PLC program, which also establishes trip conditions in the event of excessive vibration, overcurrent (overload), and high winding temperatures. The vibration contact, X2, is closed in the absence of vibrations and open in the presence of vibrations. Given that it is a true statement
Which electronic equipment will you use to turn on and off a load that has a greater current magnitude?
Higher current switches/relays cause sparks to form on the contact terminals. Electromechanical relays should not be used because sparks are generated during the mechanical contact-making process.
When two of a motor's three terminals are switched, the
A motor's spinning will be reversed if two of its three terminals are switched. The way a forward-reverse starter operates is just like that.
Appliance A (550W), Appliance B (770W), and Appliance C are the three appliances in a 110V electrical system (330W). What is the bare minimum fuse rating need if all appliances run simultaneously?
The bare minimum fuse rating needs to be greater than the system's typical operating current. The total current in the system, while all three appliances are operating, is equal to the sum of the three since an electrical system is connected in parallel.
Each appliance's current usage is determined by:
I = P/V
P = Power [Watt]
V = Voltage [Volt]
Therefore, appliance A consumes 550/110 = 5A
Appliance B consumes 770/110 = 7A
Appliance C consumes 330/110 = 3A
The total current in the system is 5 + 7 + 3 = 15A
In order to withstand normal working conditions, the minimal fuse amperage rating must be greater than 15A, thus 20A.