Engineering/ Mechanical Engineering Basic Mcq Questions Set 2 Sample Test,Sample questions

Question:
 A perfect gas at 27 C is heated at constant pressure as to trible its volume the temperature of the gas will be

1.81 deg C

2. 270 deg C

3. 627 deg C

4.900 deg C

Posted Date:-2022-03-04 10:10:58


Question:
 An example of a water tube boiler is a

1.Locomotive boiler

2.Lancashire boiler

3.Babcock-Wilcox boiler

4.Cochran boiler

Posted Date:-2022-03-04 11:08:58


Question:
 During tensile testing on a specimen cup and cone formation is observed with

1.cast iron

2.cast steel

3.mild steel

4.glass

Posted Date:-2022-03-04 10:22:24


Question:
 For large power production, it is economical to set up

1. diesel plants

2.steam power plants

3.gas turbines

4.hydro-electric plants

Posted Date:-2022-03-04 10:24:47


Question:
 In a pertrol engine the theoretical ratio of air to fuel is approximately

1.3:1

2.5:1

3.15:1

4.30:1

Posted Date:-2022-03-04 10:08:50


Question:
 In our state a super thermal power station is located at

1.Hyderabad

2.Vijayawada

3.Nellore

4.Ramagundam

Posted Date:-2022-03-04 10:38:16


Question:
 The equipment used for transporting material horizontally as well as vertically which saves labour cost is

1.trucks

2.car dumper

3.trailers

4.conveyors

Posted Date:-2022-03-04 10:25:54


Question:
 The inlet valve in a 4 stroke IC engine opens

1.after TDC

2.before BDC

3. before TDC

4.after BDC

Posted Date:-2022-03-04 11:17:35


Question:
 The kinetic energy of a body of a mass 2kg, when it falls in air from rest through a height of 5 m is

1.98.1 J

2. 9.8 Nm

3.10 n

4. 20 j

Posted Date:-2022-03-04 11:24:12


Question:
 The operation chart indicates

1. method of assembly

2.sequence of operation

3.times for each operation

4.layout of machines

Posted Date:-2022-03-04 10:31:14


Question:
 The thermo dynamic cycle used in a petrol engine is the

1.constant pressure cycle

2.Carnot cycle

3.Rankine cycle

4.constant volume cycle

Posted Date:-2022-03-04 11:13:45


Question:
A 4 cylinder 4 stroke diesel engine has 3000 power strokes per minute; its speed in RPM is

1.3000

2.6000

3.750

4.1500

Posted Date:-2022-03-04 11:21:22


Question:
A 4 stroke 2 cylinder deisel engine has an IMEP of 4 bar and a mechanical efficiency of 80 per cent, the brake mean effective pressure is

1.3.2 bar

2.5.0 bar

3.6.4 bar

4.2.5 bar

Posted Date:-2022-03-04 11:12:52


Question:
An aircraft gas turbine operates on

1.Sterling cycle

2. Bryton cycle

3.Rankine cycle

4.Otto cycle

Posted Date:-2022-03-04 10:32:29


Question:
An example of a water tube boiler is a

1.Locomotive boiler

2.Lancashire boiler

3.Babcock-Wilcox boiler

4.Cochran boiler

Posted Date:-2022-03-04 11:07:09


Question:
An example of a water tube boiler is a
A. B. C. D. 

1.Locomotive boiler

2.Lancashire boiler

3.Babcock-Wilcox boiler

4.Cochran boiler

Posted Date:-2022-03-04 11:06:02


Question:
Chunk used on turret lathe is

1.Four jaw self centering chunk

2.Collect chunk

3.Three jaw independent chunk

4.Magnetic chunk

Posted Date:-2022-03-04 10:07:21


Question:
First law of the thermodynamics deals with conversation of

1.mass

2.heat

3.momentum

4.energy

Posted Date:-2022-03-04 10:12:57


Question:
For chain drives the small sprockets should have a minimum number of teeth of

1.17

2.25

3.27

4.31

Posted Date:-2022-03-04 10:16:36


Question:
For comfort air conditioning the conditions maintained are

1.15 deg dbt to 20 deg Wbt

2.25 deg dbt to 60 % RH

3.40 deg dbt and 40 deg Wbt

4.25 deg dbt and 80 % RH

Posted Date:-2022-03-04 10:20:10


Question:
For the purpose of comparison, the steam generating capacity of a boiler is generally expressed in terms of

1.equivalent evaporation

2. kg/hr

3.steam pressure

4. thermal efficiency

Posted Date:-2022-03-04 10:35:17


Question:
For transmitting power without slip one of the following drives is used

1.belt drives

2.rope drives

3.cone pulleys

4.chain drives

Posted Date:-2022-03-04 10:18:40


Question:
he cost of lubricating oils in a machine shop may be classified as

1.direct material cost

2.prime cost

3.factory overhead cost

4.administrative overhead cost

Posted Date:-2022-03-04 11:14:41


Question:
High carbon steel has a carbon content of

1.1 to 3 %

2.0.5 to 1 %

3.0.8 to 2 %

4.2 to 4 %

Posted Date:-2022-03-04 10:27:11


Question:
In a six cylinder 4 stroke petrol engine running at 2000 RPM, the cam shaft runs at

1.1000 RPM

2. 2000 RPM

3. 6000 RPM

4. 500 RPM

Posted Date:-2022-03-04 11:18:36


Question:
In an inpulse turbine the velocity of steam remains constant in the

1.nozzles

2.moving blades

3.fixed blades

4.casing

Posted Date:-2022-03-04 11:11:54


Question:
Indicated thermal efficiency of an engine is

1. Brake power/Indicated power

2. Indicated power/Mechanical efficiency

3.Brake thermal efficiency/Mechanical efficiency

4.Brake power/Mechanical efficiency

Posted Date:-2022-03-04 11:23:09


Question:
One of the following methods is adopted for governing of steam turbines in a power plant

1.hit and miss governing

2.blow off in boile

3. throtle governing

4.speed control

Posted Date:-2022-03-04 10:33:41


Question:
One of the following type of pumps is used in a diesel engine

1. jet pump

2.reciprocating pump

3.gear pump

4.axial flow pump

Posted Date:-2022-03-04 11:19:55


Question:
Parson's turbine is an example of a

1. impulse turbine

2.reaction turbine

3.radial flow turbine

4.water turbine

Posted Date:-2022-03-04 11:11:09


Question:
Standard data used in work study is a

1.table of time required for various jobs

2. catalogue of material properties

3. table of cost of components

4.catalogue of elemental time standard

Posted Date:-2022-03-04 10:30:09


Question:
Super heated steam at 20 bar enters a nozzle, for maximum discharge the throat pressure should be
A. 16 barB. C. 10 barD. 

1.16 bar

2.10.92 bar

3.10 bar

4.11.6 bar

Posted Date:-2022-03-04 10:36:51


Question:
The angular speed of watt governor, when its height is 98 mm is equal to

1.10 rad/s

2.9.8 rad/s

3. 98 rad/s

4.5 rad/s

Posted Date:-2022-03-04 10:15:47


Question:
The approximate air fuel ratio in a diesel engine under rated conditions is

1.12 to 1

2.20 to 1

3.15 to 11

4.80 to 1

Posted Date:-2022-03-04 11:22:14


Question:
The area under pressure volume curve of any thermodynamic process represents

1.heat rejected only

2.heat absorbed only

3.heat absorbed and rejected

4.work done

Posted Date:-2022-03-04 10:13:48


Question:
The gudgeion pin connects the

1.connecting rod and the crank

2.piston and crank

3.crank and connecting rod

4.piston and the connecting rod

Posted Date:-2022-03-04 11:15:32


Question:
The number of valves in a two stroke engine is

1.0

2.1

3.2

4.4

Posted Date:-2022-03-04 10:11:53


Question:
Two stroke IC engines are commonly used in 2 wheelers because the

1.power to weight ratio is high

2. thermal efficiency is high

3.lube oil consumption is less

4. cnoise is less

Posted Date:-2022-03-04 10:29:00


Question:
When water at atmospheric pressure is heated from 40 deg to 80 deg, the heat absorbed is

1.sensible heat

2.latent heat

3.super heat

4.specific heat

Posted Date:-2022-03-04 10:21:11


Question:
Which one of the following is a boiler mounting?

1.fusible plug

2. super heater

3.economiser

4.chimney

Posted Date:-2022-03-04 11:05:16


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