NORA Oil Heat Exam Review Questions Latest Update Questions and 100% Verified Correct Answers Guaranteed A+

NORA Oil Heat Exam Review Questions Latest
Update 2025-2026 50 Questions and 100%
Verified Correct Answers Guaranteed A+
A "low limit" turns on the burner if the boiler gets too cool.

A)T
B)F - CORRECT ANSWER: A)T



A "vent alarm"
A)Tells delivery person when to stop

B)Call tech when flame fails

C)Signals when air vent is clogged - CORRECT ANSWER: A)Tells delivery person when
to stop



A circulator is best installed
A) After the expansion tank

B) Before the expansion tank

C)On the return - CORRECT ANSWER: After the expansion tank


A Co2 test indicates

A)Smoke

B)Complete Combustion

C)Excess Air
D)Carbon Monoxide - CORRECT ANSWER: C)Excess Air



A fuel de-aerator removes small amounts of sludge from the oil

A)T
B)F - CORRECT ANSWER: B)F - it removes small amounts of air from the oil

, A fuel pump's loose "cone valve" will cause pulsation of the flame?

A)T

B)F - CORRECT ANSWER: A)T


A low oxygen percentage means?

A)High Co2

B)High Excess Air

C)Low efficiency - CORRECT ANSWER: High Co2



A LWCO is a

A)Thermostat
B)Safety Control

C) thermostatic element - CORRECT ANSWER: Safety Control



A reverse acting aquastat

A)Turns boiler off on temp increase

B)Turns boiler on with temp increase

C)Turns circulator off on water temp drop - CORRECT ANSWER: Turns circulator off
when boiler gets too cool


An E.C.M motor is just like a PSC has a start switch - CORRECT ANSWER: Variable
Speed


Co2 "red fluid" is good for how many tests?

A)100

B)200
C)300