After each of the following sentences, a list of possible interpretations of the sentence is given. Choose the interpretation that you consider most appropriate for each sentence.

Out of the blue came his letter inviting me to stay with him. This means that the letter came

• A. by air
• B. in a blue envelope
• C. came unexpectedly.
• D. by sea

I. A liquid boils when its saturated vapor pressure is equal to the external pressure II. Dissolved substances in pure water lead to an increase in the boiling point. III. When the external pressure is increased, the boiling point increases. IV. Dissolved substances in pure water decreases the boiling point Which of the above combinations are peculiarities of the boiling point of a liquid?

• A. I, II and III only
• B. I, II, III, and IV
• C. I, II, and IV
• D. II, III, and IV

In MS Excel, comments used in cells are called?

• A. cell tip
• B. smart tip
• C. soft tip
• D. web tip

Find the quadratic equation whose roots are c and -c

• A. x² - c² = 0
• B. x² + 2cx = 0
• C. x² + 2cx + c² = 0
• D. x² - 2cx + c² = 0

This question is based on Ahmed Yerima's Attahiru.

Lord Lugard and the British military find it easy to penetrate the Sokoto Caliphate because the

• A. Muslim faithfuls fight with bows and arrows while the British solders use rifles
• B. Emir of Zazzau calls the whitemen to save him from the attack of a fellow Muslim, the Emir of Kontagora
• C. emirates of Sokoto and Zaria have not been friends since the reign of Caliph Abduirahman
• D. emirates are only united to fight the whitemen when it is the turn of Sokoto

Which of the following demonstrates the imprest system?

• A. Float → expenses paid → cash in bank → float
• B. Float → cash from bank → expenses paid → float
• C. Float → expenses paid→ cash from bank → float
• D. Float → cash in bank → expenses paid → float

They are headquarters of governments and are usually capital cities. This best describes

• A. market towns
• B. administrative towns
• C. educational towns
• D. mining towns

In cattle, constant coughing with production of blood stained sputum are signs of

• A. rinderpest
• B. anthrax
• C. brucellosis
• D. tuberculosis

Which of the following statements best describes pollination in plants?

• A. Pollination is the process of transferring pollen from the stigma to the anther of a flower
• B. Pollination is the process of transferring pollen from the anther to the stigma of a flower
• C. Pollination is the process of releasing pollen into the air for dispersal
• D. Pollination is the process of seed formation within a flower

A listener can detect the instrument from which a note is being sounded because different instruments produce the same note with a different.

• A. frequencies
• B. pitches
• C. loudness
• D. overtones