The vessel to which you are assigned has main diesel engines fitted with intake and exhaust systems as shown in the illustration. Under what circumstances would the check valve open and bypass the rotary-lobe roots blower? Illustration MO-0179
A
The check valve opens when the engine is running under a relatively light load and the rotary- lobe roots blower discharge pressure is positive.
B
The check valve opens when the engine is running under a relatively light load and the rotary- lobe roots blower discharge pressure is negative.
C
The check valve opens when the engine is running under a relatively heavy load and the rotary-lobe roots blower discharge pressure is positive.
D
The check valve opens when the engine is running under a relatively heavy load and the rotary-lobe roots blower discharge pressure is negative.
Question 1 / 2066636eef28f7522a1c520248
Question 1 of 2066636eef28f7522a1c520248
The vessel to which you are assigned has main diesel engines fitted with intake and exhaust systems as shown in the illustration. Under what circumstances would the check valve open and bypass the rotary-lobe roots blower? Illustration MO-0179
The vessel to which you are assigned has main diesel engines fitted with intake and exhaust systems as shown in the illustration. Under what circumstances would the check valve open and bypass the rotary-lobe roots blower? Illustration MO-0179