1 Answer

Answer :

NEMA standards rate motors according to frame number.

Related questions

Description : Programming a NEMA 17 stepper motor to microstep with an Arduino?

Last Answer : There are literally thousands of arduino code examples out there. This is something you should figure out on your own because the act of doing so will make you a better tinkerer. A typical stepper will have like ... digital I/o pins to output the step sequence. Even an uno or mini pro will do that.

Description : Very low pressure is expressed in microns (μ), which is equal to__________ mm of Hg column (absolute) at 0°C. (A) 0.0001 (B) 0.001 (C) 0.01 (D) 0.1

Last Answer : (B) 0.001

Description : Examine the given figure and select the correct option giving all the four parts (A, B, C and D) rightly identified. A B C D (a) Archego- Female Gemma Rhizoids niophore thallus cup ( ... thallus (c) Seta Sporo- Proto- Rhizoids phyte nema (d) Antherid- Male- Globule Roots iophore thallus

Last Answer : (a) Archego- Female Gemma Rhizoids niophore thallus cup

Description : Jamie Sale and David Pelletier are related to__________ game

Last Answer : Ans Figure Skating

Description : When the political left vilifies " the rich" why don't they make exceptions for "the rich" people who behave according to their standards?

Last Answer : Perhaps it would draw undue attention to the fact that they themselves are quite wealthy as well?

Description : If yielding strength=400N/mm2, the find the permissible shear stress according to ASME standards. a) 72 N/mm2 b) 76 N/mm2 c) 268 N/mm2 d) 422 N/mm2

Last Answer : a) 72 N/mm2

Description : According to Philippine Standards on Auditing, because there are inherent limitations in an audit that affect the auditor's ability to detect material misstatements, the auditor is: a. Neither a ... guarantor of the statements. d. Both a guarantor and an insurer of the financial statements.

Last Answer : Neither a guarantor nor an insurer of financial statements

Description : Whenever a CPA professional is engaged to perform an audit of financial statements according to Philippine Standards on Auditing, he required to comply with those standards in order to a. Eliminate audit risk ... of audit performance. d. To reduce the audit program to be prepared by the auditor.

Last Answer : Have a measure of the quality of audit performance.

Description : CAGE framework measures the match between countries and companies according to dimensions of distance. A stands for..? A. Administrative & Political B. Accounting Standards C. Acquisitions D. Articulation

Last Answer : Administrative & Political

Description : According to the Indian Standards the specific gravity is the ratio of the unit weight of soil solids to that of water at a temperature of (A) 17°C (B) 23°C (C) 27°C (D) 30°C

Last Answer : (C) 27°C

Description : According to Indian Standards Institute, the actual size of modular bricks is (A) 23 cm × 11.5 cm × 7.5 cm (B) 25 cm × 13 cm × 7.5 cm (C) 19 cm × 9 cm × 9 cm (D) 20 cm × 10 cm × 10 cm

Last Answer : (C) 19 cm × 9 cm × 9 cm

Description : According to CODEX standards, which of the following food item is hypersensitive? j. a) Cereals. c) Milk Products k. b) Nuts. d) All of the above

Last Answer : ALL OF THE ABOVE

Description : According to CODEX standards, which of the following item is hypersensitive? k) Cereals c) Nuts l) Milky products d) All of the above

Last Answer : all of the above

Description : If yielding strength=400N/mm², the find the permissible shear stress according to ASME standards. a) 72 N/mm² b) 76 N/mm² c) 268 N/mm² d) 422 N/mm²

Last Answer : a) 72 N/mm²

Description : According to school authorities Options: A) Children should be allowed complete freedom of choice in viewing TV B) Community leaders have a responsibility for influencing television standards C) All TV ... young children D) Children should never be permitted to choose the TV programmes they view

Last Answer : B) Community leaders have a responsibility for influencing television standards 

Description : Wessex Motors needs to assess the company's image relative to a new competitor. The time schedule is flexible, the research budget is very limited and a low response rate will not be a major ... will probably use _____ survey. A)mail B)telephone C)random D)personal interview E)population

Last Answer : A)mail

Description : State types of enclosures for electric motors. 

Last Answer : Types of enclosures for Electric Motor:  i) Open type enclosure:-  ii) Screen Protected enclosure  iii) Drip proof (moisture) enclosure:  iv) Flame (Fire) proof enclosure:-  v) Totally enclosed type enclosure:-  vi) Pipe ventilated totally enclosed type enclosure:

Description : Why are DC motors used in trains and not AC motors ?

Last Answer : The reason is torque. torque is inversely proportional to speed..i.e when th knowe train comes to rest position to motion.. initial speed is zero..so it requires high starting torque for ... current will flow through field and armature coils then maximum torque is available at the intial condition.

Description : (a) Define permeability. (b) Define MMF. (c) Define form factor of an alternating quantity. (d) Define frequency and time period of an alternating quality. (e) Define transformation ratio of transformer. ... and state the meaning of each term used. (g) Give two applications of single phase motors. 

Last Answer : Permeability : It is the ability of a magnetic/Non magnetic material to allow setting up of flux in it.  MMF : The magneto motive force (MMF) is the force required to setup flux in a magnetic / ... applications of single phase motors : Water pumps, ceiling fan, lathe machine

Description : Suggest electric motors for i) traction ii) crane iii) lathe machine iv) domestic fan.

Last Answer : i) Traction :- DC Series motor  ii) Crane :- DC Series motor  iii) Lathe machine :- 3 phase Induction motor or DC shunt motor  iv) Domestic fan :- 1 phase induction motor

Description : State which electric motors are generally used in electro agro systems with reason.

Last Answer : 1) 3 phase induction motor is used in electro agro system for water pumping from wells as 3 phase ac supply is easily available, cost of induction motor is less, maintenance free being rugged ... as 1 phase ac supply is easily available for domestic purpose, repair is simple and easily available.

Description : State factors for selection of motors as drive.

Last Answer : Following Factors governing / or are considered while selecting electric drive (Motor) for particular application: Factors to be considered for selection of Electrical Drives: 1) Nature of Supply:- ... level, load equalization 7) Cost: - Capital, Running and maintenance cost should be less.

Description : Compare variable reluctance and permanent magnet motors.

Last Answer : Variable reluctance Motor  Permanent magnet motors   The rotor is not magnetised The rotor is magnetised  High torque to inertia ratio  Low torque to inertia ratio  ... rotor has salient pole construction The rotor has mostly smooth cylindrical type of construction. 

Description : What are the factors to be considered while selection of motors for different drives?

Last Answer : Following Factors are considered while selecting electric drive (Motor) for particular application:  Factors to be considered for selection of Electrical Drives:  1) Nature of Supply:- Whether supply ... , load equalization 7) Cost: - Capital, Running and maintenance cost should be less.  

Description : Draw the power and control circuit for motors using autotransformer type starter.

Last Answer : Draw the power and control circuit for motors using autotransformer type starter.

Description : State the classification of single phase induction motors.

Last Answer : Types of single phase induction motors: 1. Split phase induction motor. 2. Capacitor start inductor motor. 3. Capacitor start capacitor run induction motor. 4. Permanent split capacitor motor. 5. Shaded pole induction motor. 

Description : Which of the following motors can run on both AC and DC? A) Universal motor B) Dual wattage motor C) Flexible motor D) All the above

Last Answer : Which of the following motors can run on both AC and DC? A) Universal motor B) Dual wattage motor C) Flexible motor D) All the above

Description : The main purpose of permanent magnet motors are (A) to avoid the need for field supply (B) to provide high flux density (C) to provide control over flux level (D) to facilitate kW rating

Last Answer : The main purpose of permanent magnet motors are to avoid the need for field supply

Description :  DC motors are still preferred for use in: -  a) Electric excavators steel mills and cranes b) Lathes and machine tools c) Flour mills and jaw crushers d) Paper industry

Last Answer :  DC motors are still preferred for use in: - Electric excavators steel mills and cranes

Description : Carbon brushes are used in electric motors to:  (1) Brush off carbon deposit on the commutator (2) Provide a path for flow of current (3) Prevent overheating of armature windings (4) Prevent sparking during commutation

Last Answer : Carbon brushes are used in electric motors to: Provide a path for flow of current.

Last Answer : Much higher efficiency of transformer compared with that of electrical motors of the same power.

Description : ………………….. is a collective term for a number of Ethernet Standards that carry traffic at the nominal rate of 1000 Mbit/s against the original Ethernet speed of 10 Mbit/s. A) Ethernet B) Fast Ethernet C) Gigabit Ethernet D) All of the above

Last Answer : B) Fast Ethernet

Description : ............ is a collective term for a number of Ethernet Standards that carry traffic at the nominal rate of 1000 Mbits/s against the original Ethernet speed of 10 Mbit/s. A) Ethernet B) Fast Ethernet C) Gigabit Ethernet D) All of the above

Last Answer : B) Fast Ethernet

Description : is a collective term for a number of Ethernet Standards that carry traffic at the nominal rate of 1000 Mbits/s against the original Ethernet speed of 10 Mbit/s. A) Ethernet B) Fast Ethernet C) Gigabit Ethernet D) All of the above

Last Answer : B) Fast Ethernet

Description : different types of standards

Last Answer : 1) International standards: a. International standards are fixed and develop by international agreement. b. These standards are maintained at International Bureau of Weights and Measures ... check components and calibrating laboratory instruments to achieve good accuracy and better performance.