175) The knocking tendency in compression ignition engines for a given fuel will be

enhanced by decreasing compression ratio

enhanced by increasing compression ratio

dependent on other factors

none of the above

Answer is:

enhanced by decreasing compression ratio

suction, compression, expansion and exhaust

suction, expansion, compression and exhaust

expansion, compression, suction and exhaust

compression, expansion, suction and exhaust

Answer is:

highly ignitable

more difficult to ignite

less difficult to ignite

none of these

Answer is:

Kota

Tarapur

Bareilly

none of these

Answer is:

high self ignition temperature

low volatility

higher viscosity

all of these

Answer is:

Explanation:

The probability of knocking in diesel engines is increased by
* high self ignition temperature
* low volatility
* higher viscosity