calibration & Axles

What is sweet spot zone in engine map?

• Zone where engine gives max power

• Zone where engine gives max torque

• Zone where engine gives max fuel economy

• Zone where engine gives least emissions

What is not the reason to have all HPs in single engine capacity?

• Mechanical design limits

• Packaging limits

• Emission limits

• Durability limits

Which strategy UD uses to control engine emissions?

• High Nox

• Low Nox

• Mid Nox

• Zero Nox

What does DPF Controls from emission perspective?

• NOx & HC

• CO & HC

• NOX & CO

• PM & PN

What are control units in Powertrain scope?

• EMS, ACM, TECU

• EMS, IECU, TECU

• ACM, IC, EMS

• TECU, BMS, EMS

Function of differential is to

a) Split power

b) Increase torque

c) Allow different wheel speed

d) Increase speed

• a) Only

• a & b

• a & c

• All of them

Function of rear axle ratio is

• To provide a mechanical advantage for the vehicle
• To control the vehicle's speed
• To improve the vehicle's fuel efficiency
• To enhance the vehicle's braking system

Hub reduction axles are used in

• High speed applications

• Heavy load applications

• Hilly applicarions

• High gradient applications