MTU

MTU

University

11 Qs

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MTU

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Assessment

Quiz

Mathematics

University

Hard

Created by

Giovanni Bianchi

Used 13+ times

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11 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Media Image

Per il sistema in figura, a REGIME

WP = (1ηD)CmωmW_P\ =\ -\left(1-\eta_D\right)C_m\omega_m

WP = (1ηR)mgRτωmW_P\ =\ -\left(1-\eta_R\right)mgR\tau\omega_m

Cm = τmgRηDC_m\ =\ \frac{\tau mgR}{\eta_D}

Cm = τ(m+JR2)gRηDC_m\ =\ \frac{\tau\left(m+\frac{J}{R^2}\right)gR}{\eta_D}

2.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

Media Image

Per il sistema in figura, allo SPUNTO

WP = (1ηD)CmωmW_P\ =\ -\left(1-\eta_D\right)C_m\omega_m

W2 = mgRτωmW_2\ =\ -mgR\tau\omega_m

dωdt= ηDCm,0mgRτηDJm+(Jp+mR2)τ2\frac{\text{d}\omega}{\text{d}t}=\ \frac{\eta_DC_{m,0}-mgR\tau}{\eta_DJ_m+\left(J_p+mR^2\right)\tau^2}

dωdt= ηDCm,0mgRτηDJm+Jpτ2\frac{\text{d}\omega}{\text{d}t}=\ \frac{\eta_DC_{m,0}-mgR\tau}{\eta_DJ_m+J_p\tau^2}

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Per il sistema in figura, nell'istante immediatamente successivo allo spegnimento del motore ...

il moto è retrogrado

il moto è diretto

il moto è indeterminato

4.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Media Image

Per il sistema in figura, a REGIME ...

il moto è diretto

il moto è retrogrado

il moto è indeterminato

WP = (1ηR)CmωmW_{P\ }=\ -\left(1-\eta_R\right)C_m\omega_m

5.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Media Image

Per il sistema in figura, a REGIME

Cm = mg(sinαfd cosα)τRηRC_m\ =\ \frac{-mg\left(\sin\alpha-f_d\ \cos\alpha\right)\tau R}{\eta_R}

Cm = mg(sinαfd cosα)τR ηRC_m\ =\ -mg\left(\sin\alpha-f_d\ \cos\alpha\right)\tau R\ \eta_R

Cm = mg(sinαfd cosα)τRηRC_m\ =\ \frac{mg\left(\sin\alpha-f_d\ \cos\alpha\right)\tau R}{\eta_R}

Cm = mg(sinαfd cosα)τ2R2C_m\ =\ -mg\left(\sin\alpha-f_d\ \cos\alpha\right)\tau^2R^2

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

Per il sistema in figura, allo SPUNTO, considerando il verso di CmC_m   come in figura

il moto è diretto

il moto è retrogrado

il moto è indeterminato

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

A quale tipo di motore corrisponde la curva caratteristica riportata in figura?

Motore a combustione interna

Motore elettrico in corrente continua

Motore elettrico sincrono

Motore elettrico asincrono

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