Today, all competitive exams are Multiple Choice Questions(MCQ) based examination system and the main factor is to answer each question in a prescribed time. So, practice as much as possible before the original test you are going to face.
Total number of Multiple Choice Question (MCQ) is 15 and time allotted for each question is 30 seconds. After the allotted time, the question will be marked as un-attempt.
QUIZ
Test Conducted by: ObjectiveBooks.com
Next Mock Tests:
01. In case of gas turbines, the gaseous fuel consumption guarantees are based on
(A) High heat value
(B) Low heat value
(C) Net calorific value
(D) Calorific value
Answer: Option B
02. The painting of automobiles is done to
(A) Prevent rust from growing on the body
(B) Improve its external appearance
(C) Retain the characteristics of steel for long
(D) All of these
Answer: Option D
03. In petrol engines, during suction stroke, ________ is drawn in the cylinder
(A) Air and fuel
(B) Only fuel
(C) Only air
(D) None of these
Answer: Option A
04. The expansion of fuel in a four stroke cycle diesel engine
(A) Starts at 15° before top dead centre and ends at 30° after top dead centre
(B) Starts at top dead centre and ends at 30° after top dead centre
(C) Starts at 15° after top dead centre and ends at 30° before bottom dead centre
(D) May start and end anywhere
Answer: Option C
05. The characteristic that is enhanced by the honing of cylinder sleeves inner surface is
(A) Cooling efficiency
(B) Resistance to wear
(C) Lubrication performance
(D) None of these
Answer: Option C
06. The ratio of the brake power to the indicated power is called
(A) Mechanical efficiency
(B) Overall efficiency
(C) Indicated thermal efficiency
(D) Volumetric efficiency
Answer: Option A
07. In petrol engines, the delay period is of the order of
(A) 0.001 second
(B) 0.002 second
(C) 0.003 second
(D) 0.004 second
Answer: Option B
08. The auto ignition in a spark ignition engine means
(A) Automatic ignition of the charge at the end of compression
(B) Ignition induced by the passage of a spark
(C) Ignition of the charge before the passage of flame front
(D) Ignition induced to supplement the process of normal combustion
Answer: Option C
09. If petrol is used in a diesel engine, then
(A) Low power will be produced
(B) Efficiency will be low
(C) Higher knocking will occur
(D) Black smoke will be produced
Answer: Option C
10. In a petrol engine, the high voltage for spark plug is in the order of
(A) 1000 volts
(B) 2000 volts
(C) 11 kilovolts
(D) 22 kilovolts
Answer: Option D
11. The operation of forcing additional air under pressure in the engine cylinder is known as
(A) Scavenging
(B) Turbulence
(C) Supercharging
(D) Pre-ignition
Answer: Option C
12. If the air-fuel mixture ignites before the spark takes place at spark plug, the condition is called
(A) Detonation
(B) Ignition
(C) Pre-ignition
(D) Rumble
Answer: Option C
13. The loud pulsating noise heard within the cylinder of an internal combustion engine is known as
(A) Detonation
(B) Turbulence
(C) Pre-ignition
(D) Supercharging
Answer: Option A
14. The main merit of a multi cylinder type cylinder sleeve is
(A) Smaller engine dimensions
(B) Better cooling efficiency
(C) High rigidity
(D) None of these
Answer: Option A
15. The actual volume of fresh charge admitted in 4-stroke petrol engine is
(A) Equal to stroke volume
(B) Equal to stroke volume and clearance volume
(C) Less than stroke volume
(D) More than stroke volume
Answer: Option C
