logo

Crowdly

Browser

Add to Chrome

Questions Bank (1395784 total)

Una rueda de 40 cm de diámetro acelera uniformemente desde 180 rev/min hasta 232 rev/min en 6.5 s. Qué distancia habrá recorrido un punto en la orilla de la rueda, en ese tiempo?
View this question

Which is representing the roll-pitch-yaw

transformation matrix?

0%
0%
100%
0%
View this question

What is the matrix order arrangement to calculate the

rotation matrix,

R

0%
0%
0%
View this question

What is the definition of the Euler angles?

0%
0%
0%
View this question

Which is not true about the properties of rotation

matrix?

0%
0%
0%
View this question

A 415 V, 40 HP, 50 Hz, two-pole, Y-connected induction motor has the following impedances in ohms per phase referred to the stator circuit:

𝑅1 = 0.15 Ω

𝑋1 = 0.52 Ω

𝑅2 = 0.054 Ω

𝑋2 = 0.52 Ω

𝑋𝑚 = 15.0 Ω

The total rotational losses are 500 W and are assumed to be constant. For a rotor slip of 5.0 percent at the rated voltage and rated frequency, find the magnitude of the motor's stator line current.

0%
0%
0%
0%
View this question

Non-salient synchronous generators have:

0%
0%
0%
0%
View this question

Inherently synchronous motors:

0%
0%
0%
100%
View this question
The effective resistance of a 2200 V, 50 Hz, 440 kVA, 1-phase alternator is 0.5 Ω. On short circuit, a field current of 40 A gives the full load current of 200 A. The electromotive force on open circuit with the same field excitation is 1160 V. Calculate the synchronous reactance and round it to 2 decimal places.
0%
0%
0%
0%
View this question

Ali is the Chairman of a committee. In how many ways can a committee of 5 be chosen from 10 people given that Ali must be one of them?

100%
0%
0%
0%
0%
View this question