MCQOPTIONS
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MCQOPTIONS
This section includes 119 Mcqs, each offering curated multiple-choice questions to sharpen your UPSEE knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
A simple pitot tube is placed 1 m below the water surface in an open channel. The water level in the open end of the tube is 1 m above the water surface. The water flow velocity is: |
| A. | 3 km/hr |
| B. | (4g)0.5 m/s |
| C. | 2.05 m/s |
| D. | (2g)0.5 m/s |
| Answer» E. | |
| 102. |
Piezometric head is the sum of |
| A. | Velocity head and pressure head |
| B. | Pressure head and datum head |
| C. | Datum head and velocity head |
| D. | Velocity head, pressure head and datum head |
| Answer» C. Datum head and velocity head | |
| 103. |
Orifice meter is used for measurement of |
| A. | Temperature |
| B. | Pressure |
| C. | Rate of flow |
| D. | Viscosity |
| Answer» D. Viscosity | |
| 104. |
A nozzle at the end of an 80 mm hosepipe produces a jet 40 mm in diameter. When it is discharging the water 1200 Lpm, the force on the joint at the base of the nozzle will be |
| A. | 180 N |
| B. | 200 N |
| C. | 220 N |
| D. | 240 N |
| Answer» E. | |
| 105. |
Bernoulli's equation is applicable to : |
| A. | Steady Flow |
| B. | Unsteady Flow |
| C. | Both steady and unsteady Flow |
| D. | None of above |
| Answer» B. Unsteady Flow | |
| 106. |
Borda’s mouthpiece is |
| A. | a short cylindrical tube projecting inward, having length of ½ diameter |
| B. | a convergent tube having length of 2 - 3 diameters |
| C. | most commonly used |
| D. | rarely used |
| Answer» B. a convergent tube having length of 2 - 3 diameters | |
| 107. |
Coefficient of discharge is equal to : |
| A. | Coefficient of contraction × Coefficient of velocity |
| B. | Coefficient of Contraction / Coefficient of Acceleration |
| C. | Coefficient of contraction × Coefficient of acceleration |
| D. | Coefficient of Contraction / Coefficient of Velocity |
| Answer» B. Coefficient of Contraction / Coefficient of Acceleration | |
| 108. |
A person rests her coffee mug on a horizontal tray while she accelerates at \(\frac{{10}}{{\sqrt 3 }}\) m/s2. The mug is 10 cm deep and 6 cm in diameter and contains coffee 7 cm deep at rest. Assuming rigid-body acceleration, calculate gauge pressure in the bottom corner point A as shown in the figure if density of coffee is 1010 kg/m3. Assume acceleration due to gravity g = 10 m/s2. |
| A. | 965 Pa |
| B. | 1005 Pa |
| C. | 865 Pa |
| D. | 765 Pa |
| Answer» D. 765 Pa | |
| 109. |
A U-tube manometer containing a liquid of specific gravity S measures gauge pressure of water flowing in a pipe.h2 = difference in level of manometric liquid in the two limbsh1 = height of water between point of connection of pressure tap and level of manometric liquid in the limb to which it is connected by a tube bending down.The measured gauge pressure is: |
| A. | h2 m of manometric liquid |
| B. | h2.S m water |
| C. | (h2.S – h1) m of water |
| D. | h1 m water |
| Answer» D. h1 m water | |
| 110. |
When a net force act on a body, it produces acceleration in body in direction of net force which is directly proportional to net force acting on body and inversely proportional to its mass. This statement is called |
| A. | newtons 2nd law of motion |
| B. | newtons 1st law of motion |
| C. | newtons 3rd law of motion |
| D. | law of momentum |
| Answer» B. newtons 1st law of motion | |
| 111. |
Push and pull that moves or tend to move, stops or tends to stop motion of a body is known as |
| A. | force |
| B. | friction |
| C. | velocity |
| D. | momentum |
| Answer» B. friction | |
| 112. |
Ratio of force of limiting friction to normal reaction is |
| A. | zero |
| B. | constant |
| C. | greater than 1 |
| D. | less than 2 |
| Answer» C. greater than 1 | |
| 113. |
At high speeds friction is |
| A. | increased |
| B. | decreased |
| C. | becomes zero |
| D. | becomes infinite |
| Answer» C. becomes zero | |
| 114. |
As weight is a force so it is a |
| A. | scalar quantity |
| B. | fixed quantity |
| C. | variable quantity |
| D. | vector quantity |
| Answer» E. | |
| 115. |
A cyclist of mass 30 kg exerts a force of 250 N to move his cycle. acceleration is 4 ms−2. force of friction between road and tyres will be |
| A. | 120 N |
| B. | 130 N |
| C. | 150N |
| D. | 115 N |
| Answer» C. 150N | |
| 116. |
Banking of road prevents |
| A. | sliding of vehicle |
| B. | rolling of vehicle |
| C. | skidding of vehicle |
| D. | none of above |
| Answer» D. none of above | |
| 117. |
To every action there is always an equal but opposite reaction, this statement is known as |
| A. | newtons 2nd law of motion |
| B. | newtons 1st law of motion |
| C. | newtons 3rd law of motion |
| D. | law of momentum |
| Answer» D. law of momentum | |
| 118. |
If we place some coins over paper strip and pull it with a jerk, then coins don't falloff because of |
| A. | friction |
| B. | inertia |
| C. | resistance |
| D. | force |
| Answer» C. resistance | |
| 119. |
If string is stretched by two opposite forces of 10 N then tension in string is |
| A. | 5N |
| B. | 20 N |
| C. | 10 N |
| D. | zero |
| Answer» E. | |