InterviewSolution

Explore topic-wise InterviewSolutions in .

This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

101.	The main reasons for crankshaft wear are _______(a) Different loads at some points of rotation(b) Centrifugal forces due to crankshaft rotation(c) Misalignment in connecting rod(d) All of the mentionedI have been asked this question by my college director while I was bunking the class.I need to ask this question from IC Engine Crankshaft and Camshaft topic in chapter Internal Combustion Engines of Automobile Engineering
Answer» Right ANSWER is (d) All of the mentioned To EXPLAIN: All the THREE are the reasons for CRANKSHAFT WEAR.

102.	The efficiency of a combined cycle gas turbine(steam cooled) can range as high as ________(a) 20%(b) 30%(c) 40%(d) 60%The question was asked during an online interview.My question is taken from Heat Engines in chapter Internal Combustion Engines of Automobile Engineering
Answer» The CORRECT CHOICE is (d) 60% The best EXPLANATION: A steam cooled combined CYCLE GAS turbine can have efficiency as high as 60%.

103.	In a four stroke cycle engine camshaft revolves at ______the crank speed.(a) Two times(b) Half(c) Four times(d) Three timesI had been asked this question in an online interview.Origin of the question is IC Engine Crankshaft and Camshaft topic in division Internal Combustion Engines of Automobile Engineering
Answer» Right OPTION is (B) Half To explain: The camshaft rotates at half of the crank speed.

104.	Crankshafts are usually constructed by ______(a) Casting(b) Drop forging(c) Drawing(d) ExtrusionThe question was posed to me in exam.Asked question is from IC Engine Crankshaft and Camshaft in chapter Internal Combustion Engines of Automobile Engineering
Answer» Right CHOICE is (B) Drop FORGING For explanation I would SAY: Drop forging is used for making CRANKSHAFTS.

105.	Passenger car engines contain ____________(a) 2 compression ring and 1 oil control ring(b) 2 compression ring and 2 oil control ring(c) 1 compression ring and 1 oil control ring(d) 2 compression ring and no oil control ringThe question was posed to me during an interview.This interesting question is from Automobile in section Internal Combustion Engines of Automobile Engineering
Answer» The CORRECT option is (a) 2 COMPRESSION ring and 1 OIL control ring The best I can EXPLAIN: These type of engines contain 2 compression ring and 1 oil control ring.

106.	Connecting rod is attached to the piston by the ___________(a) Rod cap(b) Piston pin(c) Cap bolt(d) Lower capThe question was posed to me by my college director while I was bunking the class.My enquiry is from Automobile Engineering topic in chapter Internal Combustion Engines of Automobile Engineering
Answer» Right answer is (b) PISTON pin To explain I WOULD SAY: Connecting rod is ATTACHED to the piston by piston pin.

107.	The fuel is injected into the cylinder in diesel engine when the piston is ____________(a) Exactly at TDC after compression stroke(b) Exactly at the BDC before compression stroke(c) Approaching TDC during compression stroke(d) Approaching TDC during exhaust strokeI had been asked this question during an online interview.I'm obligated to ask this question of Energy Cycle topic in division Internal Combustion Engines of Automobile Engineering
Answer» Right OPTION is (C) Approaching TDC during compression stroke Easiest explanation: FUEL is injected when piston is approaching TDC during compression stroke.

108.	In an automobile engine the temperature of the piston will be more at __________(a) The crown of the piston(b) The skirt of the piston(c) The piston walls(d) The piston ringsI got this question in an interview for internship.I need to ask this question from Energy Cycle topic in section Internal Combustion Engines of Automobile Engineering
Answer» The correct choice is (a) The CROWN of the piston The best EXPLANATION: The crown of the engine EXPERIENCES the highest temperature because during the ignition, the crown of the piston compresses the fuel and the ignition takes PLACE just above the crown. So the crown FACES the ignition and due to this it faces the highest temperature.

109.	In case of four cylinder inline engine the number of firing strokes in one revolution of crank is _______(a) 1(b) 2(c) 3(d) 4I got this question during an internship interview.The query is from Energy Cycle topic in chapter Internal Combustion Engines of Automobile Engineering
Answer» The CORRECT option is (b) 2 Best EXPLANATION: In a four cylinder engine the number of FIRING strokes for one revolution of CRANK is two.

110.	Engines used in Ashok Leyland Comet trucks are ________(a) Single cylinder engines(b) Two cylinder engines(c) Four cylinder engines(d) Six cylinder enginesThe question was asked during a job interview.My enquiry is from Applications of IC Engines in division Internal Combustion Engines of Automobile Engineering
Answer» Right CHOICE is (d) Six cylinder engines To explain I WOULD SAY: Ashok LEYLAND Comet trucks use six cylinder engines.

111.	Which of the following is the expression of the maximum fluctuation of energy in a flywheel where I = mass moment of inertia of the flywheel, Cs = coefficient of fluctuation of speed, ω = mean angular speed of ω1 and ω2, and E = mean kinetic energy of the flywheel?(a) Iω(ω1+ω2)(b) IωCs(c) 2E^2Cs(d) Iω^2CsThis question was posed to me in my homework.Question is from Flywheel in chapter Internal Combustion Engines of Automobile Engineering
Answer» Correct choice is (d) Iω^2Cs To explain: The maximum FLUCTUATION of energy in a FLYWHEEL = Iω(ω1-ω2) = Iω^2Cs = 2ECs = Iω^2Cs. The maximum fluctuation of energy can be calculated by USING the TURNING moment diagram.

112.	The main causes of crankshaft vibration are _________(a) Variation in torque(b) Cyclic variation of gas and combustion products(c) Unbalanced weight of parts(d) All of the mentionedThis question was posed to me by my school principal while I was bunking the class.This key question is from IC Engine Crankshaft and Camshaft topic in division Internal Combustion Engines of Automobile Engineering
Answer» Right OPTION is (d) All of the mentioned The BEST I can EXPLAIN: Crankshaft vibration is CAUSED by all the above mentioned causes.

113.	Piston pin is also known as ________(a) Gudgeon pin(b) Crank pin(c) Screw pin(d) None of the mentionedI got this question in class test.My query is from Automobile topic in chapter Internal Combustion Engines of Automobile Engineering
Answer» The correct option is (a) Gudgeon pin Explanation: Piston pin is also CALLED as gudgeon pin.Gudgeon PINS are made of steel alloy of high strength. Gudgeon pins are SHORT hollow PIPES. Steel alloy of high strength are used for this pin because it should be very light and also have very high strength and temperature resistance.

114.	The pressure in an engine cylinder is less than atmospheric pressure when the engine is performing which stroke?(a) Suction(b) Compression(c) Power(d) ExhaustThis question was posed to me during an online interview.Origin of the question is Energy Cycle in section Internal Combustion Engines of Automobile Engineering
Answer» Correct answer is (a) SUCTION For explanation I WOULD SAY: During suction stroke the INSIDE pressure is less than atmospheric pressure.

115.	The thickness of dry liners ranges from __________(a) 3 mm to 9mm(b) 1.5 mm to 3 mm(c) 1 mm to 2 mm(d) 0.5 mm to 2.5 mmThis question was posed to me in an interview for internship.This intriguing question originated from Parts of an IC Engine Cylinder and Liner topic in section Internal Combustion Engines of Automobile Engineering
Answer» Right choice is (b) 1.5 mm to 3 mm The best EXPLANATION: The THICKNESS of dry LINERS is of about 1.5 mm to 3 mm.

116.	The purpose of a piston pin is that _________(a) It prevents the valve from rotating(b) It links the connecting rod to the crankshaft(c) It ensure the piston ring to the piston(d) It connect the piston to the connecting rodThis question was posed to me during an online interview.I'm obligated to ask this question of Automobile Engineering in section Internal Combustion Engines of Automobile Engineering
Answer» RIGHT ANSWER is (d) It connect the piston to the connecting rod The EXPLANATION is: Piston pin CONNECTS the piston to the connecting rod.

117.	The firing order in case of four cylinder inline engines is usually ________(a) 1-2-4-3(b) 1-3-4-2(c) 1-4-3-2(d) Either 1-3-4-2 or 1-4-3-2This question was addressed to me in an online quiz.The query is from Energy Cycle in chapter Internal Combustion Engines of Automobile Engineering
Answer» The correct OPTION is (d) Either 1-3-4-2 or 1-4-3-2 To EXPLAIN I WOULD say: The firing order of these engines can be either 1-3-4-2 or 1-4-3-2.

118.	Diesel engine is not employed in which of the following?(a) Pumping sets(b) Air compressors(c) Tractors(d) MotorcyclesThis question was addressed to me during a job interview.I'm obligated to ask this question of Applications of IC Engines topic in division Internal Combustion Engines of Automobile Engineering
Answer» Right answer is (d) MOTORCYCLES The BEST explanation: Diesel engines are not used in motorcycles.

‹ 1 2 3 ›