Question

13 multiple choice 1 point which of the following sets of variables is required to measure horsepower? torque, rpm, 5252 torque, time, rpm speed, 5252, rpm time, rpm, 5252 14 multiple choice 1 point which of the following factors best accounts for a diesel engines high thermal efficiency? a high compression ratio its superior volumetric efficiency a ci system the use of a longer valve overlap period

Explanation:

1. The formula for horsepower (HP) is $HP=\frac{Torque \times rpm}{5252}$, so torque, rpm, and 5252 are required.
2. A high - compression ratio in a diesel engine allows for more complete combustion and better conversion of fuel energy into mechanical energy, contributing to its high thermal efficiency.

Answer:

1. Torque, rpm, 5252
2. A high compression ratio