24 views
in Computer Engineering by
What is the best data type definition for Oracle when a field is alphanumeric and has a length that can vary? 

(1) VARCHAR2 (2) LONG (3) CHAR (4) NUMBER 

Related questions

1 answer 14 views

Memory that temporarily stores data and that can be erased or changed is known as  a) Cache Memory b) Read Only Memory c) Flash Memory d) Random Access Memory

asked May 13, 2018 in Computer Engineering by Shimroz123
0 answers 302 views

What type of data can you send by e-mail  (1) audio (2) video (3) pictures (4) all of these

asked Apr 10, 2018 in Computer Engineering by Shimroz123
0 answers 22 views

What is the maximum data rate that can be transmitted using a QPSK modulation with a roll-off factor of 0.2 for a 36 MHZ transponder?  A) 7.2 Mbps B) 30 Mbps C) 43.2 Mbps D) 60 Mbps

asked Apr 9, 2018 in Electrical Engineering by Shimroz123
1 answer 14 views

In a network, the computer that stores the files and processes the data is named as?  a) Terminal b) Modem c) Server d) None

asked May 13, 2018 in Computer Engineering by Shimroz123
1 answer 13 views

At a particular temperature and current density, the critical magnetic field for a Type I superconductor is Bc and that for a type II superconductor ranges from Bc1 to Bc2 keeping other parameters unloaded. both superconductors are now subjected to a magnetic field B that satisfies the conditions B>Bc and Bc1 < ... will maintain a vortex state  (d) Type I superconductor will switch to the normal conducting state, while Type II superconductor will maintain a vortex sate

asked May 15, 2018 in Physics by Shimroz123
0 answers 14 views

In Print server which is a buffer that holds data before it is send to the printer.  (1) Queue (2) Spool (3) Node (4) Jobs

asked Apr 10, 2018 in Computer Engineering by Shimroz123
0 answers 35 views

A data dictionary is a special file that contains  (1) The name of all fields in all files (2) Data types of all fields in all files (3) The width of all fields in all files (4) All of these

asked Apr 10, 2018 in Computer Engineering by Shimroz123
0 answers 18 views

One of the following Memories has the highest speed in terms of data transfer to and from the processor.  (1) Cache Memory (2) Primary Memory (3) Secondary Memory (4) External memory

asked Apr 10, 2018 in Computer Engineering by Shimroz123
1 answer 9 views

 ____ is the language that computer can understand and execute.  a) Middle Level Language b) Machine Level Language c) High Level Language d) All of the above

asked May 13, 2018 in Computer Engineering by Shimroz123
1 answer 19 views

A conductor of length L has current I passing through it, when it is placed parallel to a magnetic field. The force experienced by the conductor will be

asked Mar 29, 2018 in Electrical engineering materials by Shimroz123
1 answer 13 views

When a dipole antenna of 1/8 length has an equivalent total resistance of 1.5 Watt then the efficiency of the antenna is   (A) 0.89159% (B) 8.9159% (C) 89.159% (D) 891.59%

asked May 17, 2018 in Electronics communication by Shimroz123
0 answers 22 views

Which looping process is best used when the number of iterations is known?  (1) for (2) while (3) do-while (4) all looping processes require that the iterations be known

asked Apr 10, 2018 in Computer Engineering by Shimroz123
0 answers 16 views

What is max data capacity for optical fiber cable?  (1) 10 mbps (2) 100 mbps (3) 1000 mbps (4) 10000 mbps 

asked Apr 10, 2018 in Computer Engineering by Shimroz123
0 answers 41 views

A suspension type insulator has 2 units with self capacitance C and ground capacitance of 0.2 C. Each unit can withstand for a maximum voltage of 11 kV. Its string efficiency is  (A) 78% (B) 82% (C) 80% (D) 84%

asked Apr 28, 2018 in Power system by Shimroz123
1 answer 19 views

A transmission line of 200 km has a certain A, B, C and D parameters. If the length is reduced to 60 km

asked Apr 29, 2018 in Electrical Engineering by Shimroz123
0 answers 14 views

You are adding a data view to a Windows Form. You wish to view records that are current. Which property of the data view should you set?  (1) RowFilter (2) RowStateFilter (3) AllowDelete (4) Sort  

asked Apr 10, 2018 in Computer Engineering by Shimroz123
1 answer 22 views

The induced voltage across a coil with 250 turns that is located in a magnetic field and is changing at a rate of 8 Wb/s is A. 1,000 V B. 2,000 V C.31.25 V D. 3,125 V

asked Apr 12, 2018 in Electrical Engineering by Shimroz123
0 answers 9 views

The mechanism that bring a page into memory only when it is needed is called _____________  (1) Segmentation (2) Fragmentation (3) Demand Paging (4) Page Replacement  

asked Apr 10, 2018 in Computer Engineering by Shimroz123
0 answers 12 views

What is the maximum number of points of light, fan and socket-outlets that can be connected in one sub-circuit ?   (a) 5 (b) 10 (c) 20 (d) 30 

asked Apr 10, 2018 in Electrical Engineering by Shimroz123
1 answer 15 views

In .Net environment, the access level, signature and the return type can be changed during  A) overriding B) hiding C) shadowing D) all of the above

asked Apr 11, 2018 in Computer Engineering by Shimroz123
0 answers 11 views

The type of wiring that is highly suitable for a temporary shed is   (a) Cleat wiring (b) Wooden capping and casing wiring (c) Lead sheathed wiring (d) Conduit wiring 

asked Apr 10, 2018 in Electrical Engineering by Shimroz123
2 answers 31 views

What happens to the resistance of a wire when its length as well as the cross-sectional area are doubled? A) It doubles B) It becomes 4 times C) It becomes 2π times D) It remains the same

asked Apr 29, 2018 in Electrical Engineering by Shimroz123
1 answer 16 views

Which of the following laws relates the magnetic field to the magnitude, direction, length, and proximity of the electric current? A) Lenz’s law B) Faraday’s law C) Biot–Savart law D) None of these

asked Apr 29, 2018 in Electrical Engineering by Shimroz123
1 answer 24 views

What is the power factor when a single phase watt meter operating on 200 V and 5 A for 5 hours makes 2016 revolutions and the meter constant in revolution is 420? A) 0.04 B) 1.04 C) 0.96 D) None of these

asked Apr 29, 2018 in Electrical Engineering by Shimroz123
0 answers 69 views

A class template can declare  (1) global data members (2) constant data members (3) static data members (4) both (1) and (3)

asked Apr 10, 2018 in Computer Engineering by Shimroz123
0 answers 27 views

The best method for determining the stability and transient response of a control system is (a) Bode Plot (b) Nyquist plot (c) Root locus (d) Routh-Hurwitz

asked May 25, 2018 in Control System by Shimroz123
1 answer 26 views

A moving coil of meter has 100 turns, and a length and depth of 10mm and 20mm respectively. It is positioned in a uniform radial flux density of 200 mT. The coil carrier current capacity is 50 mA. The torque on the coil is

asked Apr 29, 2018 in Electrical Measurements and Instrumentation by Shimroz123
0 answers 34 views

 Can we create a digital circuit that has as inputs the  3- bit digital words [2: 0] A, [2: 0] B and [2: 0] C and its output is  equal to      |C-A-B| . The circuit of the binary full adder is known.

asked Aug 11, 2018 in Digital Electronics by vasilishmty97
1 answer 4 views

What is the value of Inductance of a coil that induces 20 V when the current through the coil changes from 12 to 20 A in 2 seconds? A. 2 H B. 3 H C. 4 H D. 5 H 

asked Apr 12, 2018 in Electrical Engineering by Shimroz123
1 answer 4 views

X.25 protocol is a structured protocol that has 

asked May 23, 2018 in Computer Engineering by Shimroz123
1 answer 8 views

Data structure suitable for the application is discussed in  A) Data design B) Architectural design C) Procedural design D) Interface design

asked Apr 11, 2018 in Computer Engineering by Shimroz123
1 answer 65 views

A conductor of diameter d, length 1 consumes a power of W when a current I flows through it. What will be the power consumed if d is doubled, 1 is halved and current is tripled ?

asked Apr 23, 2018 in Electrical Engineering by Zeeshan
1 answer 27 views

Information that a computer produces and delivers back to the user is known as ____.  a) Input b) Output c) Both (a) and (b) d) None of the above

asked May 13, 2018 in Computer Engineering by Shimroz123
0 answers 135 views

The cell reference fro a range of cells that starts in cell B1 and goes over to column G and down to row 10 is…  (1) B1-G10 (2) B1.G10 (3) B1;G10 (4) B1:G10

asked Apr 11, 2018 in Computer Engineering by Shimroz123
1 answer 31 views

Coding and decoding, and transporting the data is performed by  A) XML and UDDI respectively B) XML and SOAP respectively C) HTML and HTTP respectively D) HTML and SOAP respectively

asked Apr 11, 2018 in Computer Engineering by Shimroz123
0 answers 63 views

When Aluminium is deposited directly upon N type semiconductor, the diode formed has the characteristic  A) Forward current due to minority carriers B) Small delay time from on to off C) Large storage time D) Higher break down voltage

asked Apr 5, 2018 in Electronics Engineering by Shimroz123
0 answers 14 views

A galvanised steel tower member has original length of 22cm and cross sectional area of 13 cm2. With working axial tensile load of 125 KN, the change in length was 0.2 mm. Calculate the percentage of elongation.  (A) 0.0712% (B) 0.00612% (C) 0.0909% (D) 0.19% 

asked Apr 5, 2018 in Electrical Engineering by Shimroz123
1 answer 18 views

 A copper wire of length l and diameter d has potential difference V applied at its two ends. The drift velocity is vd . If the diameter of wire is made d/3, then drift velocity becomes

asked Mar 31, 2018 in Electrical Engineering by Shimroz123
0 answers 16 views

According to Biot-Savart’s laws the magnetic field at a point due to incremental element of length dl carrying a current is  (A) Inversely proportional to the current carried by the element (B) Directly proportional to the current carried by the element (C) Directly proportional to the square of the distance (D) Inversely proportional to the length of the element

asked Apr 5, 2018 in Electrical Engineering by Shimroz123
0 answers 18 views

A coherent QPSK demodulator is required on ground for receiving data from a LEO satellite. What should be optimum order of PLL in the carrier phase tracking loop?  A) 1st order B) 2nd order C) 3rd order D) None of the above

asked Apr 9, 2018 in Electrical Engineering by Shimroz123
0 answers 25 views
1 answer 13 views

AT-T connection has higher ratio of utilizax that n a V - V connection only when  1. Identical transformers are used  2. Load power factor is leading  3. Load power factor is unity  4. Non-identical transformers are used 

asked May 13, 2018 in Electrical Engineering by Shimroz123
2 answers 73 views

The maximum power in a synchronous motor (for a given excitation) is produced when the power angle is equal to: (A) 0° (B) 45° (C) 60° (D) 90°

asked Apr 11, 2018 in Computer Engineering by Shimroz123
1 answer 3 views

For very low speed and high power applications the best suited ac motor is:

asked May 22, 2018 in Electrical Machine by Shimroz123
1 answer 22 views

Keeping in view the cost and overall effectiveness, the following circuit breaker is best suited for capacitor bank switching.  A) Vacuum B) Air blast C) SF6 D) Oil

asked May 20, 2018 in Circuit breaker by Shimroz123
0 answers 24 views

What is the energy stored in the magnetic field at a solenoid of 40 cm long and 4 cm diameter wound with 100 turns of wire carrying a current at 20A?  (A) 0.705 Joule (B) 0.789 Joule (C) 0.587 Joule (D) 0.658 Joule 

asked Apr 5, 2018 in Electrical Engineering by Shimroz123
1 answer 18 views

The main limitation for power handling capability of short length transmission lines and cables is (A) power factor (B) stability (C) thermal effect limit (D) conductor size

asked Apr 25, 2018 in Electrical Engineering by Shimroz123

Welcome to electronics2electrical.com here you can ask questions related to electrical, electronics, mechanical, telecommunication, instrumentation, computer, mathematics, physics etc.
Be respectful to all the members. Do not copy and paste the answers from other websites which have copyright content. While asking question give full details about it.

Categories

Most popular tags

power motor dc circuit transformer voltage current used system phase resistance factor synchronous load ac energy induction electric generator series frequency between speed capacitor use electrical meter line difference control type mosfet transmission magnetic plant high single instrument bjt unit source advantages function diode and machine winding field define torque parallel amplifier supply shunt thyristor motors electricity arduino maximum time relay armature problem value on transformers types coil diagram state flow ratio material three formula starting direction theorem method emf operating efficiency digital wave microprocessor test instruments inductance loss measure operation connected signal low applications effect single-phase network temperature working constant losses different law wattmeter measuring compare controlled breaker drive device logic rc full switch flux wire resistivity disadvantages free of materials machines angle force converter conductor transistor gain open protection scr core measurement number bridge principle generators reactance circuits negative the friction iron loop short pole battery conservation steam resistors hysteresis computer using analog lines secondary station gate a rectifier inverter linear induced relays nuclear capacitance basic characteristics design direct work rotor electronics ammeter forces diesel damping rlc connection factors capacitors minimum insulation moving regulation running self systems air fault range main stability quality starter igbt eddy alternator ideal rl average 3-phase plants arc thermal error fuzzy biasing dielectric pressure balanced superposition errors copper rotation feedback impedance measured electronic electrons charge inductive transfer explain start off back curve over solar is three-phase tariff locomotive peak bias zener engineering commutator surge conductors rating universal potentiometer density permanent mechanical transducer capacity memory adc excitation two fuse pure harmonics application semiconductor inductor internal pmmc reaction welding resonance traction permeability breakers rms designed electromagnetic si generation brushes switching capacitive shaded rate 1 distribution resistor methods delta star oscillator reluctance simplification algebra 8085 boolean weston dynamometer insulating strength installation definition fuel heating earth units

8,450 questions

7,047 answers

132 comments

3,084 users

...