Can you help by answering this question?

How hot does it get in a microwave?

15 views
in Mechanical Engineering by
Structural sections such as rails, angles, I-beams are made by

1. Hot rolling 2. Hot drawing

3. Hot piercing 4. Hot extrusion

1 Answer

0 votes
by

Structural sections such as rails, angles, I-beams are made by Hot rolling

Related questions

1 answer 8 views

The cold chisels are made by 1. Drawing 2. Rolling 3. Forging 4. Piercing

asked May 17, 2018 in Mechanical Engineering by Shimroz123
1 answer 19 views

When the stator windings are connected in such a fashion that the number of poles are made half, the speed of the rotor of a synchronous motor?

asked Mar 20, 2018 in Synchronous machine by Shimroz123
1 answer 17 views

Two metallic blocks having masses in the ratio 2:3 are made to slide down a frictionless inclined plane starting from rest position. When the blocks reach the bottom of the inclined plane, they will have their kinetic energies in the ratio : (A) 2:3 (B) 3:5 (C) 3:2 (D) 7:4

asked Jun 14, 2018 in Mechanical Engineering by Shimroz123
0 answers 26 views

In IC, transistors are utilised as diodes.To get highest breakdown voltage for such diode, it is adjusted to have  A) Ie=0 B) Ic=0 C) Vcb=0 D) Vce=0 

asked Apr 5, 2018 in Electronics Engineering by Shimroz123
1 answer 22 views

A closed path made by several branches of the network is known as?

asked Mar 25, 2018 in Network Analysis by Shimroz123
1 answer 12 views

If a shaft made of ductile material is subjected to combined bending and twisting moments, calculation based on which one of the following theories would give the most conservative values ? (A) Maximum principle stress theory (B) Maximum shear stress theory (C) Maximum strain energy theory (D) Maximum distortion energy theory

asked Jun 14, 2018 in Mechanical Engineering by Shimroz123
1 answer 12 views

Which of the following instruments can be used for measurement of very high value resistances such as insulation resistance in industries? A) Wheatstone bridge B) Megger C) Ohm-meter D) Resistive potentiometer 

asked Jun 17, 2018 in Electrical Measurements and Instrumentation by Shimroz123
0 answers 16 views

In some of the channel coding schemes such as in NRZ, with long strings of l's or 0's (a) information is gained (b) synchronization may be lost (c) synchronization is achieved (d) all the information is lost

asked Apr 14, 2018 in Electrical Engineering by Shimroz123
0 answers 55 views

SiN is used in semiconductor industry such as a diffusion mask during device processing, a dielectric for memory devices because it offers a (a) High breakdown field strength and a low fixed interface charge density. (b) Low breakdown field strength and a high fixed interface charge density. (c) High breakdown field strength and a high fixed interface charge density. (d) Low breakdown field strength and a low fixed interface charge density.

asked Apr 14, 2018 in Electrical Engineering by Zeeshan
0 answers 11 views

Angles project true size only when the plane containing the angle and plane of projection are  (a) Aligned (b) Adjacent (c) Perpendicular (d) Parallel

asked Apr 9, 2018 in Physics by Shimroz123
1 answer 43 views

Two parallel conductors are separated by a distance, d carrying a current, I in the same direction. The magnetic field along a line running parallel to the conductors and midway between them is (A) zero (B) proportional to I (C) proportional to d (D) proportional to the permeability of the medium. 

asked Jun 4, 2018 in Electrical Engineering by Shimroz123
1 answer 18 views

Two transformers are to be operated in parallel such that they share load in proportion to their kVA ratings. The rating of the first transformer is 500 kVA ratings. The rating of the first transformer is 500 kVA and its pu leakage impedance is 0.05 pu. If the rating of second transformer is 250 kVA, its pu leakage impedance is  (A) 0.20 (B) 0.10 (C) 0.05 (D) 0.025

asked May 17, 2018 in Transformer by Shimroz123
1 answer 19 views

In a split-phase induction motor, the resistance/reactance ratios of windings are such that (A) current in the auxiliary winding leads the current in the main winding (B) current in the auxiliary winding lags the current in the main winding (C) both windings develop the same starting torque (D) both windings develop high starting current

asked Apr 28, 2018 in Electrical Machine by Shimroz123
0 answers 11 views

Bandwidth of an RC coupled amplifier is 100 kHz. Two such amplifiers are connected in cascade.Resultant bandwidth(in kHz) is around  A) 200 B) 100 C) 60 D) 30

asked Apr 9, 2018 in Electronics Engineering by Shimroz123
1 answer 12 views

Dew point temperature is constant as long as there is : (A) no change in moisture content of the air (B) no change in volume of air (C) no change in dry bulb and wet bulb temperature (D) no change in relative and specific humidity of air

asked Jun 15, 2018 in Mechanical Engineering by Shimroz123
1 answer 42 views

 In axial flow fans and turbines, fluid enters and leaves as follows : (A) radially, axially (B) axially, radially (C) axially, axially (D) radially, radially

asked Jun 14, 2018 in Mechanical Engineering by Quiz
1 answer 17 views

Military type of organisation is known as : (A) line organisation (B) functional organisation (C) line and staff organisation (D) line, staff and functional organisation 

asked Jun 14, 2018 in Mechanical Engineering by Quiz
1 answer 11 views

Angle between the shear plane and work surface is known as : (A) lip angle (B) rake angle (C) cutting angle (D) shear angle

asked Jun 14, 2018 in Mechanical Engineering by Shimroz123
1 answer 13 views

The ratio of maximum displacement of the forced vibration to the deflection due to static force is known as : (A) Damping Factor (B) Damping Coefficient (C) Logarithmic Decrement (D) Magnification Factor

asked Jun 14, 2018 in Mechanical Engineering by Shimroz123
1 answer 10 views

A casting defect which occurs near the ingates as rough lumps on the surface of a casting is known as 1. Shift 2. Sand wash 3. Swell 4. Scab

asked May 17, 2018 in Mechanical Engineering by Shimroz123
1 answer 8 views

Air is normally dehumidified by : (A) injecting water (B) passing steam (C) heating (D) cooling

asked Jun 15, 2018 in Mechanical Engineering by Shimroz123
1 answer 7 views

Tool life is most affected by : (A) cutting speed (B) tool geometry (C) feed and depth (D) microstructure of material being cut

asked Jun 14, 2018 in Mechanical Engineering by Shimroz123
1 answer 5 views

Welding of glass is done by 1. Ultrasonic welding 2. Electron beam welding 3. Laser beam welding 4. Explosive welding

asked May 17, 2018 in Mechanical Engineering by Shimroz123
1 answer 18 views

Comparing the total copper cross sections in terms of current-carrying capacity for a single-phase and a three-phase 120 V system with effective load resistance of 15Ω, will yield: A. single-phase 32 A; three-phase 16 A B. single-phase 16 A; three-phase 8 A C. single-phase 8 A; three-phase 4 A D. single-phase 16 A; three-phase 0 A

asked Apr 12, 2018 in Electrical Engineering by Shimroz123
0 answers 189 views

In the process of refining of metals, the impure metal is made as   (a) Cathode (b) Anode (c) Electrolyte (d) None of the above 

asked Apr 10, 2018 in Electrical Engineering by Shimroz123
1 answer 24 views

A 339 IC is an example of a fourteen-pin DIP that can be made to function as a ________:  (1) Comparator (2) 555 timer (3) D to A converter (4) Ladder network

asked Apr 9, 2018 in Electronics Engineering by Shimroz123
1 answer 8 views

The comfort conditions in air conditioning are : (A) 22 ºC dry bulb temperature and 60% relative humidity (B) 25 ºC dry bulb temperature and 100% relative humidity (C) 20º C dry bulb temperature and 75% relative humidity (D) 15º C bulb temperature and 80% relative humidity

asked Jun 15, 2018 in Mechanical Engineering by Shimroz123
1 answer 8 views

The efficiency of a centrifugal pump is maximum when its blades are : (A) straight (B) bent forward (C) bent backward (D) bent forward first and then backward

asked Jun 14, 2018 in Mechanical Engineering by Quiz
1 answer 8 views

n-type semiconductor can be made by adding ____ to intrinsic semiconductor (A) Boron (B) Arsenic (C) Carbon (D) Germanium

asked May 12, 2018 in Electronics Engineering by Shimroz123
1 answer 37 views

An induction type energy meter is found to run fast. Correction for this error can be made by  (A) Over-load compensation. (B) Voltage compensation. (C) Moving the brake magnet away from the centre of the disc. (D) Moving the brake magnet towards the centre of the disc.

asked Apr 28, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 11 views

A switch tail ring counter is made by using a single D-FF. The resulting circuit is (A) T-FF (B) D-FF (C) SR-FF (D) JK-FF

asked Apr 28, 2018 in Digital Electronics by Shimroz123
1 answer 17 views

A synchronous motor can be made self starting by providing?

asked Mar 18, 2018 in Synchronous machine by Shimroz123
0 answers 21 views

For the use of Newton-Raphson method, the non-linear algebraic equations are made linear with the help of (a) By decoupling the equations (b) Taylor series expansion (c) Exponential distribution (d) Nothing can be said 

asked May 25, 2018 in Numerical methods and programming by Shimroz123
1 answer 38 views

What are the slot wedges in a DC machine made of?   (a) Mild steel (b) Silicon steel (c) Fibre (d) Cast iron

asked May 13, 2018 in DC machine by Shimroz123
1 answer 20 views

30°, 60° and 90° connections are made in a directional relay to render the relay (A) Sufficient torque under fault conditions (B) Zero torque under fault conditions (C) Current grading (D) Time grading

asked May 12, 2018 in Switchgear And Protection by Shimroz123
1 answer 18 views

Two non -inverting amplifiers, one having a unity gain and the other having again of twenty are made using identical operational amplifiers. As compared to the unity gain amplifier, the amplifier with gain twenty has

asked Apr 29, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 7 views

Generally bearing bushes are made of (A) copper (B) white metal (C) gun metal (D) brass

asked Apr 23, 2018 in Electrical Engineering by Shimroz123
0 answers 20 views

The following statements are made for FETs 1. In n -channel depletion mode MOS in the active region, the control voltage VGS is negative. 2. NMOS in depletion mode is cut off for VGS=O 3. NMOS in enhance mode is cut off for VGS=O 4. There is no path between source and drain in the enhancement mode Of these, the true statements are : a. 1 and 2 only b. 1 and 3 only c. 3 and 4 only d. 1, 3 and 4 only

asked Apr 12, 2018 in Electronics Engineering by Shimroz123
0 answers 42 views

The following statements are made for NMOS & PMOS 1. The carrier mobility in NMOS is higher 2. PMOS require less area than NMOS 3. NMOS circuits are smaller than PMOS 4. PMOS are faster in switching. Of these, the true statements are : a. 2 and 4 only b. 2 and 3 only c. 1 and 3 only d. 1, 2 and 3 only

asked Apr 12, 2018 in Electronics Engineering by Shimroz123
0 answers 13 views

The electrode of a direct are furnace is made of (1) Tungsten (2) Graphite (3) Silver (4) Copper 

asked Apr 11, 2018 in Electrical Engineering by Shimroz123
1 answer 6 views
1 answer 12 views

Voltage dependent resistors are usually made from?

asked Mar 25, 2018 in Basic concepts by Shimroz123
1 answer 28 views

Permanent magnets are normally made of?

asked Mar 25, 2018 in Electrical Engineering by Shimroz123
1 answer 23 views

D.C. shunt relays are made of?

asked Mar 19, 2018 in Switchgear And Protection 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

...