What is the full form of RPM ?

by

1 Answer

Answer :

RPM - Revolutions Per Minute
by

Related questions

What is the full form of RPM ?

Last Answer : Revolutions Per Minute

What is the full form of 'RPM' ? -How To ?

Description : What is the full form of 'RPM' ? -How To ?

Last Answer : The full form of 'RPM' is Revolutions Per Minute

What is the full form of RPM ?

Description : What is the full form of RPM ?

Last Answer : RPM full version Revolution Pre Minute.

A 3 phase 50 Hz induction motor has full load speed of 970 rpm. Calculate no of poles and slip frequency.

Description : A 3 phase 50 Hz induction motor has full load speed of 970 rpm. Calculate no of poles and slip frequency.

Last Answer : The number of poles in an induction motor can be calculated using the following formula: No. of poles = (120 * frequency) / speed In this case, the number of poles would be calculated as follows: No. of poles = ( ... ) - 50 Hz = 8.08 Hz So the motor has 6 poles and a slip frequency of 8.08 Hz.

I inherited a bunch, I mean three boxes full, of 78 rpm records....any ideas what I should or could do with them??? I do have an old gramaphone, but I don't have enough room for ALL these records.

Description : I inherited a bunch, I mean three boxes full, of 78 rpm records....any ideas what I should or could do with them??? I do have an old gramaphone, but I don't have enough room for ALL these records.

Last Answer : I bet you would be able to sell them to collector's quite easily. Alternatively, if you really don't want them and they're just going to end up as clutter, perhaps you could see if there are any charities ... Oxfam in the UK have a program that lets you do that, but I don't know where you're based

Which of the following statements is correct concerning the motor performance curves and data table shown in the illustration? EL-0006 A. The motor RPM at full load is 1737 RPM. B. The motor draws 12.62 kw from the switchboard when operating at full load. C. If the motor was developing 10 HP its power factor would be 0.92. D. All of the above.

Description : Which of the following statements is correct concerning the motor performance curves and data table shown in the illustration? EL-0006 A. The motor RPM at full load is 1737 RPM. B. The motor draws 12.62 kw ... If the motor was developing 10 HP its power factor would be 0.92. D. All of the above.

Last Answer : Answer: D

Which of the listed motors will operate at the highest RPM, assuming that each operates at the same frequency? A. A four-pole synchronous motor under normal load. B. A four-pole induction motor under no load. C. A six-pole synchronous motor under normal load. D. A six-pole induction motor under full load.

Description : Which of the listed motors will operate at the highest RPM, assuming that each operates at the same frequency? A. A four-pole synchronous motor under normal load. B. A four-pole induction motor under ... A six-pole synchronous motor under normal load. D. A six-pole induction motor under full load.

Last Answer : Answer: A

A four-pole 60-hertz induction motor has a synchronous speed of 1800 RPM and a slip of 4 percent at full load. What will be its full load speed? A. 1728.0 RPM B. 1730.7 RPM C. 1800.0 RPM D. 1872.0 RPM

Description : A four-pole 60-hertz induction motor has a synchronous speed of 1800 RPM and a slip of 4 percent at full load. What will be its full load speed? A. 1728.0 RPM B. 1730.7 RPM C. 1800.0 RPM D. 1872.0 RPM

Last Answer : Answer: A

A four-pole, 60 cycle, squirrel-cage motor has a full load speed of 1725 RPM. What will be the percent of slip at full load? A. 4.16 B. 4.34 C. 95.66 D. 95.84

Description : A four-pole, 60 cycle, squirrel-cage motor has a full load speed of 1725 RPM. What will be the percent of slip at full load? A. 4.16 B. 4.34 C. 95.66 D. 95.84

Last Answer : Answer: A

What is the rotor speed of a four pole, 60 cycle, induction motor operating at full load with 3% slip? A. 270 RPM B. 540 RPM C. 873 RPM D. 1746 RPM

Description : What is the rotor speed of a four pole, 60 cycle, induction motor operating at full load with 3% slip? A. 270 RPM B. 540 RPM C. 873 RPM D. 1746 RPM

Last Answer : Answer: D

A full journal bearing having clearance to radius ratio of 1/100, using a lubricant with μ=28×10-3 Pa s supports the shaft journal running at N = 2400 rpm If bearing pressure is 1.4 MPa, the Somerfield number is [IES-2001] (a) 8×10-3 (b) 8×10-5 (c) 0.48 (d) 0.48×10

Description : A full journal bearing having clearance to radius ratio of 1/100, using a lubricant with μ=28×10-3 Pa s supports the shaft journal running at N = 2400 rpm If bearing pressure is 1.4 MPa, the Somerfield number is [IES-2001] (a) 8×10-3 (b) 8×10-5 (c) 0.48 (d) 0.48×10

Last Answer : (a) S = (μN s /p) (r/c) 2

Variation between no load and full load conditions is found to approx. at a) 80 rpm b) 91 rpm. c) 100 rpmd) 110 rpm

Description : Variation between no load and full load conditions is found to approx. at a) 80 rpm b) 91 rpm. c) 100 rpmd) 110 rpm

Last Answer : c) 100 rpm

A 3-phase 50HZ SCIM takes a power input of 30 KW at its full load speed of 1440 rpm. Total stator losses are 1 KW. The slip and rotor ohmic losses at full load are a) 0.02, 600 W b) 0.04, 580 W c) 0.04, 1160 W d) 0.04, 1200 W

Description : A 3-phase 50HZ SCIM takes a power input of 30 KW at its full load speed of 1440 rpm. Total stator losses are 1 KW. The slip and rotor ohmic losses at full load are a) 0.02, 600 W b) 0.04, 580 W c) 0.04, 1160 W d) 0.04, 1200 W

Last Answer : Ans: 0.04, 1160 W

An 8-pole alternator runs at 750 rpm and supplies power to a 6-pole induction motor which has a full load

Description :  An 8-pole alternator runs at 750 rpm and supplies power to a 6-pole induction motor which has a full load slip of 3 percent. The full load speed of the induction motor will be: A) 1000 rpm B) 920 rpm C) 950 rpm D) 970 rpm

Last Answer : An 8-pole alternator runs at 750 rpm and supplies power to a 6-pole induction motor which has a full load slip of 3 percent. The full load speed of the induction motor will be: 970 rpm

In a 2 kW, 200 V, 1000 rpm. DC series motor the torque at full load was found to be 0.3 N -m. The torque at

Description : In a 2 kW, 200 V, 1000 rpm. DC series motor the torque at full load was found to be 0.3 N -m. The torque at half full load in N -m is :

Last Answer : In a 2 kW, 200 V, 1000 rpm. DC series motor the torque at full load was found to be 0.3 N -m. The torque at half full load in N -m is : 0.075

A 400 V, 50 Hz three-phase induction motor rotates at 1440 rpm on full -load. The motor is wound for

Description : A 400 V, 50 Hz three-phase induction motor rotates at 1440 rpm on full -load. The motor is wound for

Last Answer : A 400 V, 50 Hz three-phase induction motor rotates at 1440 rpm on full -load. The motor is wound for 4 poles

The no load speed of a d.c. shunt motor is 1140 rpm. At full load, the armature reaction weakens the main...

Description : The no load speed of a d.c. shunt motor is 1140 rpm. At full load, the armature reaction weakens the main flux by 5% whereas the armature circuit voltage drops by 10%. The motor full load speed in rpm will be: (A) 1080 (B) 1203 (C) 1000 (D) 1200

Last Answer : The no load speed of a d.c. shunt motor is 1140 rpm. At full load, the armature reaction weakens the main flux by 5% whereas the armature circuit voltage drops by 10%. The motor full load speed in rpm will be: 1080

A 400kW, 3 -phase, 440V, 50Hz induction motor has a speed of 950 rpm on full load. The machine has 6 poles. ...

Description : A 400kW, 3 -phase, 440V, 50Hz induction motor has a speed of 950 rpm on full load. The machine has 6 poles. The value of slip for the machine will be (A) 0.06 (B) 0.10 (C) 0.04 (D) 0.05

Last Answer : A 400kW, 3 -phase, 440V, 50Hz induction motor has a speed of 950 rpm on full load. The machine has 6 poles. The value of slip for the machine will be 0.05

A cumulative dc compound motor runs at 1500 rpm. on full load. If its series field is short-circuited, its speed

Description : A cumulative dc compound motor runs at 1500 rpm. on full load. If its series field is short-circuited, its speed  (1) becomes zero (2) remains unchanged (3) increases (4) decreases

Last Answer : Increases. As it's cumulative compound motor, both series and shunt field both assist each other. If series field is short circuited, the overall field strength will decrease and atop of that ... speed is inversely proportional to field strength.  So, the speed will increase overall.

A 50 Hz, 3—phase induction motor has a full load speed of 1440 rpm. The number of poles of the motor is: ...

Description : A 50 Hz, 3—phase induction motor has a full load speed of 1440 rpm. The number of poles of the motor is:   (A)4 (8)6 (0)12  (D)8

Last Answer : Ans: A N= Ns (1-S) = NS –NS x S 1440 = Ns (1-S) Ns = 1440 / (1-S) Ns = (120 f/ p) = 120 x 50/p = 6000 p Ns will be closer to N i.e 1440 When P=2 ; Ns = 3000 rpm , not close to N When P=4 ; Ns = 1500 rpm , it is closer to N Therefore P =4 for N=1440

What is the full form of Student ?

Last Answer : S = study T = truthfullness ( truth) U = unity ( unity) D = discipline ( rule) E = economy ( economy) N = nationality ( nationality) T = training

What is the full form of NAPE ?

Last Answer : National Academy for Primary Education

What is the full form of WPM ?

Last Answer : Words per minute Web Page Maintenance

What is the full form of MCB ?

Last Answer : MCB Full: Mauritius Commercial Bank.

What is the full form of MR ?

Last Answer : MR Full: Mister

What is the full form of MS ?

Last Answer : MS Full: Multiple Sclerosis.

What is the full form of bscag ?

Last Answer : B.Sc.ag Full: Bachelor of Science in Agriculture.

What is the full form of dsc ?

Last Answer : DSC Full: Digital Security Controls.

What is the full form of bcd ?

Last Answer : BCD Full: Binary Coded Decimal.

What is the full form of MLC ?

Last Answer : MLC Full: Maritime Labor Convention.

What is the full form of SD ?

Last Answer : SD refers to many things like "Sweet Dreams" or "Secure Digital (memory card)" or "So Drunk".

What is the full form of VD ?

Last Answer : VD 's full venereal disease.

What is the full form of jds ?

Last Answer : JDS has many full forms For example: - 1) Journalists for Democracy in Sri Lanka (political group) 2) Junior Duck Stamp (US FWS) 3) Joint Deployment System 4) John Dewey Society

What is the full form of GP ?

Last Answer : The full form of Gp is Grameenphone

What is the full form of BIP ?

Last Answer : BIP = Bad In Person

What is the full form of JOB ?

Last Answer : JOB is a full semantic word It has no full form job means job 6

What is the full form of IT ?

Last Answer : IT = INFORMATION TECHNOLOGY

What is the full form of CPL ?

Last Answer : Combined Programming Language

What is the full form of SLPL ?

Last Answer : Srilanka Premier League

What is the full form of PSL ?

Last Answer : Pakistan Super League is the full form of PSL

What is the full form of CCTV ?

Last Answer : The full form of this is Close Circuit Television

What is the full form of GIS ?

Last Answer : GIS = Geographic Information System.

What is the full form of BORI ?

Last Answer : Bangladesh Oceanographic Research Institute.

What is the full form of BM ?

Last Answer : BM is the full form of "Business Management".

What is the full form of BCB ?

Last Answer : BCB = Bangladesh cricket board

What is the full form of NCDP ?

Last Answer : NCDP in different fields. I have given some below. - NCDP: National Changing Diabetes Program - NCDP: National Center for Disaster Preparedness - NCDP: National Center of Disabled Person - NCDP: National Center ... - NCDP: North Carolina Democratic Party Also to know more : - What does 'NCDP' stand?

What is the full form of QSPK ?

Last Answer : Quadrature Phase Shift Keying

What is the full form of AA ?

Last Answer : Anti aircraft in full form of AA.

What is the full form of ODBL ?

Last Answer : The full form of ODBL is: Origin and Development of Bengali Language .

What is the full form of ANZUS ?

Last Answer : of ANZUS: The Australia, New Zealand, United States Security Treaty.