MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 4791 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 4751. |
In a ventilated disc brake, |
| A. | a duct directs air towards the caliper for cooling while the vehicle is moving |
| B. | caliper is covered with cooling fins |
| C. | disc contains many small holes for optimum cooling performance |
| D. | disc contains radial vanes between its rubbing surfaces for optimum cooling performance |
| Answer» E. | |
| 4752. |
The effect of having excess camber is |
| A. | excessive steering alignment torque |
| B. | hard steering |
| C. | too much traction |
| D. | uneven tyre wear |
| Answer» E. | |
| 4753. |
The co-efficient of rolling resistance for a truck weighing 63 500 N is 0.018. The rolling resistance to the truck is |
| A. | 1.143 N |
| B. | 11.43 N |
| C. | 114.3 N |
| D. | 1143 N |
| Answer» E. | |
| 4754. |
The advantage of double-wishbone suspension design is that a large amount of freedom is available for setting geometry and precise settings can be made for driving comfort and steerability, |
| A. | Correct |
| B. | Incorrect |
| Answer» B. Incorrect | |
| 4755. |
If the level of tension in the belt is too high, it can result in a loss of power or in bending of the rotating shaft or crankshaft. |
| A. | Correct |
| B. | Incorrect |
| Answer» B. Incorrect | |
| 4756. |
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» D. rumble | |
| 4757. |
The oil pump is driven by the |
| A. | camshaft |
| B. | alternator shaft |
| C. | crankshaft via drive belt |
| D. | crankshaft directly |
| Answer» E. | |
| 4758. |
In a spark plug, when the temperature of the central electrode exceeds a certain temperature, any carbon that has adhered will be burnt off, and the temperature at which this burning off carbon starts is referred to as the self cleaning temperature. |
| A. | Correct |
| B. | Incorrect |
| Answer» B. Incorrect | |
| 4759. |
Incorrect steering axis inclination (S.A.I.) causes |
| A. | tendency to assume toe-out orientation |
| B. | generation of a braking effect at tight corners |
| C. | poor recovery of the steering wheel after making a turn |
| D. | the vehicle to pull to the side of lesser inclination |
| Answer» D. the vehicle to pull to the side of lesser inclination | |
| 4760. |
In a unit type body (frameless body) design, the sheet metal parts are welded together, forming a frame work to which outer skin is attached. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4761. |
The torque available at the contact between driving wheels and road is known as |
| A. | brake effort |
| B. | tractive effort |
| C. | clutch effort |
| D. | none of these |
| Answer» C. clutch effort | |
| 4762. |
A traction control system (TCS) in automobiles controls the |
| A. | vibrations on the steering wheel |
| B. | engine power during acceleration |
| C. | torque that is transmitted by the tyres to the road surface |
| D. | stopping distance in case of emergency |
| Answer» D. stopping distance in case of emergency | |
| 4763. |
In radial tyres |
| A. | one ply layer runs diagonally one way and another layer runs diagonally the other way |
| B. | all plies run parallel to one another and vertical to tyre bead |
| C. | inner tubes are always used |
| D. | none of these |
| Answer» C. inner tubes are always used | |
| 4764. |
If the engine coolant leaks into the engine oil, then engine oil |
| A. | appears milky |
| B. | becomes foamy |
| C. | turns black |
| D. | none of these |
| Answer» B. becomes foamy | |
| 4765. |
The function of an alternator in an automobile is to |
| A. | supply electric power |
| B. | convert mechanical energy into electrical energy |
| C. | continually recharge the battery |
| D. | partly convert engine power into electric power |
| Answer» D. partly convert engine power into electric power | |
| 4766. |
A clutch is usually designed to transmit maximum torque which is |
| A. | equal to the maximum engine torque |
| B. | 80 per cent of the maximum engine torque |
| C. | 150 per cent of the maximum engine torque |
| D. | none of these |
| Answer» D. none of these | |
| 4767. |
What type of bearing is used for main bearings and connecting rod bearings ? |
| A. | Ballbearings |
| B. | Plain bearings |
| C. | Needle roller bearing |
| D. | Taper roller bearing |
| Answer» C. Needle roller bearing | |
| 4768. |
It is necessary to maintain the valve clearances as they |
| A. | reduce the resistance to sliding that occurs between the cam and the tappet |
| B. | allow for lengthening of the valves owing to the heat of combustion |
| C. | increase the speed at which the valves move up and down |
| D. | make the crankshaft turn smoothly |
| Answer» C. increase the speed at which the valves move up and down | |
| 4769. |
The vehicle ride will be comfortable if |
| A. | unsprung mass is kept minimum |
| B. | sprang mass is kept minimum |
| C. | vehicle mass is kept minimum |
| D. | all of these |
| Answer» B. sprang mass is kept minimum | |
| 4770. |
The flywheel and the pressure plate bind the clutch disc between them so that the engine and the transmission can be engaged. |
| A. | Yes |
| B. | No |
| Answer» B. No | |
| 4771. |
The main function of intake manifold is that it |
| A. | promotes the mixture of air and fuel |
| B. | reduces intake noise |
| C. | cools the intake air to a suitable temperature |
| D. | distributes intake air equally to the cylinders |
| Answer» E. | |
| 4772. |
The difference between DOT 3 and DOT 4 brake fluids is |
| A. | DOT 4 fluid has a higher boiling point than DOT 3 fluid |
| B. | DOT 4 fluid has a lower boiling point than DOT 3 fluid |
| C. | DOT 3 and DOT 4 fluids have the same boiling point, but DOT 4 fluid has a longer service life |
| D. | DOT 4 fluid is more resistant to freezing than DOT 3 fluid |
| Answer» B. DOT 4 fluid has a lower boiling point than DOT 3 fluid | |
| 4773. |
The battery is an electrochemical device, which means battery |
| A. | makes chemicals by mechanical means |
| B. | uses chemical action to provide electricity |
| C. | has curved plates instead of flat plates |
| D. | does not use an electrolyte |
| Answer» C. has curved plates instead of flat plates | |
| 4774. |
The operation of removing trapped air from the hydraulic braking system is known as |
| A. | trapping |
| B. | tapping |
| C. | bleeding |
| D. | cleaning |
| Answer» D. cleaning | |
| 4775. |
Positive camber is used to compensate for wheels tilting inward due to the weight of the vehicle. |
| A. | Yes |
| B. | No |
| Answer» B. No | |
| 4776. |
If the air-fuel mixture in a spark ignition engine is too rich, then air-fuel ratio is about |
| A. | 17:1 |
| B. | 15:1 |
| C. | 13:1 |
| D. | 10:1 |
| Answer» E. | |
| 4777. |
The draft or taper allowance on casting is generally |
| A. | 1 to 2 mm/m |
| B. | 2 to 5 mm/m |
| C. | 5 to 10 mm/m |
| D. | 10 to 15 mm/m |
| Answer» B. 2 to 5 mm/m | |
| 4778. |
Which of the following welding process uses non-consumable electrodes? |
| A. | TIG welding |
| B. | MIG welding |
| C. | Manual arc welding |
| D. | Submerged arc welding |
| Answer» B. MIG welding | |
| 4779. |
In a bilateral system of tolerance, the tolerance is allowed on |
| A. | one side of the actual size |
| B. | one side of the nominal size |
| C. | both sides of the actual size |
| D. | both sides of the nominal size |
| Answer» E. | |
| 4780. |
The blank diameter used in thread rolling will be |
| A. | equal to minor diameter of the thread |
| B. | equal to pitch diameter of the thread |
| C. | a little larger than the minor diameter of the thread |
| D. | a little larger than the pitch diameter of the thread |
| Answer» D. a little larger than the pitch diameter of the thread | |
| 4781. |
The cross-section of a chisel is usually |
| A. | rectangular |
| B. | square |
| C. | hexagonal |
| D. | octagonal |
| Answer» E. | |
| 4782. |
A plug gauge is used to check the diameter of shafts and studs. |
| A. | Correct |
| B. | Incorrect |
| Answer» C. | |
| 4783. |
In back-hand welding, the angle between the welding torch and the work is kept as |
| A. | 30 -40 |
| B. | 40 -50 |
| C. | 50 -60 |
| D. | 60 -70 |
| Answer» C. 50 -60 | |
| 4784. |
The centrifugal casting method, is used for casting articles of |
| A. | symmetrical shape about vertical axis |
| B. | symmetrical shape about horizontal axis |
| C. | irregular shape |
| D. | non-ferrous metal only |
| Answer» C. irregular shape | |
| 4785. |
The cold chisels are made by |
| A. | drawing |
| B. | rolling |
| C. | piercing |
| D. | forging |
| Answer» E. | |
| 4786. |
The fullers are used |
| A. | for finishing flat surfaces |
| B. | for necking down a piece of work |
| C. | for punching a hole |
| D. | to finish the punched hole |
| Answer» C. for punching a hole | |
| 4787. |
The property of sand due to which it evolves a great amount of steam and other gases is called |
| A. | collapsibility |
| B. | permeability |
| C. | cohesiveness |
| D. | adhesiveness |
| Answer» C. cohesiveness | |
| 4788. |
A baffle plate is fitted inside the oil pan to prevent the oil from splashing when it is subjected to vibration and other movement during vehicle operation. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4789. |
The motion of the cam is transferred to the valves through |
| A. | pistons |
| B. | rocker arms |
| C. | camshaft pulley |
| D. | valve stems |
| Answer» C. camshaft pulley | |
| 4790. |
Which of the following symptom is caused as a result of brake disc run out ? |
| A. | Ineffectiveness of the brakes |
| B. | Judder during braking |
| C. | Localized wearing of the brake pads |
| D. | Rapid wearing of the brake pads |
| Answer» C. Localized wearing of the brake pads | |
| 4791. |
A taper provided on the pattern for its easy and clean withdrawl from the mould is known as |
| A. | machining allowance |
| B. | draft allowance |
| C. | shrinkage allowance |
| D. | distortion allowance |
| Answer» C. shrinkage allowance | |