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design of electric vehicles

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

which of the following converters are used to control DC motor

a)

choppers

b)

AC-AC voltage controlllers

c)

inverters

d)

none of the above

2.

which of the following chopper will have two-quadrant operation

a)

class A

b)

class B

c)

class C

d)

multiquadrent

3.

which of the following control scheme is used to control induction motor speed

a)

voltage control

b)

frequency control

c)

v/f control

d)

none of the above

4.

which control techniques are used to control the speed of BLDC motor

a)

torque control

b)

speed control

c)

both torque and speed

d)

voltage control

5.

what is the full form of SRM (motor)

a)

super relative motor

b)

switched reluctance motor

c)

switched relative motor

d)

super reluctance motor

6.

what is the basic principle involved in Max SOC-of PPS Control strategy in series HEV

a)

to maintain the max charge in PPS

b)

to utilize PPS to the maximum extend

c)

to utilize engine to max extend

d)

to utilize engine and PPS in equal ratio

7.

which type of coupling is used in HEV

a)

electrical

b)

mechanical

c)

torque

d)

speed

8.

engine control, motor control, and mechanical braking control can be done used which master controller

a)

voltage controller

b)

PPS controller

c)

vehicle controller

d)

pedal control

9.

In the case of parallel HEV, which of the following condition is correct for PPS charging mode in MAX SOC od PPS control strategy:

a)

pm=(pe−pl)ηt,e,mp_m=\left(p_e-p_l\right)\eta_{t,e,m}  

pppsc=pmηmp_{ppsc}=p_m\eta_m  

b)

pe=0p_e=0   pm=plp_m=p_l  

pppsd=pmηmp_{ppsd}=\frac{p_m}{\eta_m}  

c)
d)
10.

while selecting transmission design in parallel HEV multi-gear transmission is chosen when

a)

engine average power is less than load power

b)

engine average power is equal to load power

c)

engine average power is less than PPS power

d)

when PPS power is greater than load power